View source for 1982 Lebanon War

{{short description|1982 Israeli invasion of Lebanon}}
{{pp-extended|small=yes}}
{{Use dmy dates|date=May 2020}}
{{Infobox military conflict
| conflict          = 1982 Lebanon War
| partof            = the [[Palestinian insurgency in South Lebanon]], the [[Lebanese Civil War]], and the [[Israeli–Lebanese conflict]]
| image             = כוחותינו במלחמת שלום הגליל, 1982.jpg
| image_size        = 300px
| caption           = Israeli troops invading Lebanon, 1982
| date              = 6 June – 29 September 1982 (end of Israeli operation)<ref name="Sept end date">
*{{cite web |title=Operation Peace for the Galilee: The First Lebanon War |url=https://www.idf.il/en/articles/2022/operation-peace-for-the-galilee-the-first-lebanon-war/ |publisher=[[Israel Defense Forces]] |date=22 June 2022}}
*{{cite news |title=Two decades on, Israel confronts legacy of 'forgotten' south Lebanon occupation |url=https://www.timesofisrael.com/forty-years-later-israels-scars-from-first-lebanon-war-still-havent-healed/ |work=[[The Times of Israel]] |date=18 June 2021}}
*{{cite news |title=Gantz okays recognition of southern Lebanon occupation as official IDF campaign |url=https://www.timesofisrael.com/gantz-okays-recognition-of-southern-lebanon-occupation-as-official-campaign/ |work=[[The Times of Israel]] |date=11 November 2020}}</ref> or 5 June 1985 (most Israeli forces withdrawn)
| place             = [[Lebanon]]
| result            = Inconclusive 
* Israeli tactical victories<ref>Eligar Sadeh [https://books.google.com/books?id=TGHcpPPJrswC&pg=PA119 ''Militarization and State Power in the Arab–Israeli Conflict: Case Study of Israel, 1948–1982''] Universal-Publishers, 1997 p. 119.</ref> 
* Israeli strategic failures{{efn|Sources:<ref>{{Cite journal |last1=Naor |first1=Dan |last2=Lewin |first2=Eyal |date=2023-04-03 |title=Was the 1982 Lebanon War a Deviation from Israeli Security Doctrine? |journal=The Journal of the Middle East and Africa |language=en |volume=14 |issue=2 |pages=219–244 |doi=10.1080/21520844.2023.2171652 |issn=2152-0844|doi-access=free }}</ref><ref>{{Cite journal |last=Schulze |first=Kristen E. |date=1996-01-01 |title=Perceptions and Misperceptions: Influences on Israeli Intelligence Estimates During the 1982 Lebanon War |url=https://journals.lib.unb.ca/index.php/jcs/article/view/4529/5356 |journal=Journal of Conflict Studies |language=en |issn=1715-5673 |quote=The failure of the invasion can be seen as the result of a number of misconceptions by the Israelis. The most prominent misconceptions underlying Israel's policy were: that Lebanon had a Christian majority, that the position of the president was a strong one, that the Lebanese Forces were powerful, that the Maronites wanted a Christian state, that the Maronite faction they were liaising with represented all Maronites, and that the Maronites were reliable.}}</ref><ref>{{Citation |last=Katz |first=Andrew Z. |title=5 Israel's 1982 Invasion of Lebanon to Secure Peace in the Galilee |date=2017-07-01 |pages=135–162 |url=https://www.degruyter.com/document/doi/10.1515/9781626376687-007/pdf?licenseType=restricted |access-date=2024-09-26 |publisher=Lynne Rienner Publishers |language=en |doi=10.1515/9781626376687-007 |isbn=978-1-62637-668-7 |quote=The failure of Operation Peace of [sic] Galilee to achieve its objective prevailed upon the new national coalition government, which took office in 1984, to withdraw forthwith from Lebanon.|url-access=subscription }}</ref><ref>{{Cite news |date=6 June 1985 |title=Israel's 3-Year War in Lebanon Ends, But Some Troops Remain Behind |url=https://www.washingtonpost.com/archive/politics/1985/06/07/israels-3-year-war-in-lebanon-ends-but-some-troops-remain-behind/c4b0c9a7-9a1b-49df-a6db-3d6f88f5f1da/ |access-date=2024-09-26 |newspaper=Washington Post |language=en-US |issn=0190-8286 |quote=In the latest poll, in May, 36 percent of the public still said it was right to launch the war in 1982 and 60 percent said it was wrong. Significantly, 75 percent said the war was a failure.}}</ref><ref>{{Cite news |last=Kainikara |first=Sanu |date=2007 |title=Pathways to Victory: Observations from the 2006 Israel-Hezbollah Conflict |url=https://airpower.airforce.gov.au/sites/default/files/2021-03/AP15-Pathways-to-Victory.pdf |quote=The failure of the political objectives of Operation Peace for Galilee highlights a significant disconnect in Israel’s execution of the conflict. In the opinion of John Garofano, Israel’s political leaders, especially Ariel Sharon, had overestimated the time available and underestimated the cost in lives to achieve these goals. Corroborating this view, Shlomo Gazit, a former head of Israeli military intelligence says that both Begin and Sharon ‘chose to isolate themselves from their intelligence advisors and never evinced the slightest doubt that they could achieve their objective’. As the siege of Beirut continued, Sharon’s ability to direct IDF operations was gradually restricted by his cabinet colleagues to the point that he could only issue piecemeal orders. Meanwhile, the IDF suffered large numbers of casualties in fierce urban fighting and later became bogged down in two decades of a low-intensity war against Hezbollah that it could not win}}</ref><ref>{{Cite web |last=Hertling |first=Mark |title=What I Learned from Watching the Israeli Army |url=https://www.thebulwark.com/p/what-i-learned-from-watching-the-israeli-army |access-date=2024-09-26 |website=www.thebulwark.com |language=en |quote=In 1982, the IDF were initially successful, but changes in government policy and civilian leaders’ strategic objectives caused mission creep, dysfunction, and eventual failure to achieve military goals. Israel withdrew its forces to the border areas by 1985, and withdrew further to the international boundary in 2000.}}</ref><ref>{{Cite book |last=Khalidi |first=Rashid |url=https://books.google.com/books?id=zR2NAgAAQBAJ&pg=PA45 |title=Under Siege: PLO Decisionmaking During the 1982 War |date=2014-01-04 |publisher=Columbia University Press |isbn=978-0-231-53595-3 |pages=45 |language=en |quote=However, the failure of "Operation Peace for Galilee" goes far beyond the objectives implied by the war's shrewdly chosen code name, since those who planned it had set their sights much farther afield.}}</ref><ref>{{Cite book |last=Hammes |first=Thomas X. |url=https://books.google.com/books?id=d2Ux1lz0PUgC&pg=PA105 |title=The Sling and the Stone: On War in the 21st Century |date=2006-02-17 |publisher=Voyageur Press |isbn=978-0-7603-2407-3 |pages=105 |language=en |quote=Adding to their frustration was the most recent and only failure of the Israeli Defense Force (IDF): Operation Peace for Galilee, the ill-fated invasion of Lebanon.}}</ref>}}
* [[PLO withdrawal from Lebanon]]<ref>References:
* ''Armies in Lebanon 1982–84'', Samuel Katz and Lee E. Russell, Osprey Men-At-Arms series No. 165, 1985
* {{cite book|last=Hirst|first=David|title=Beware of Small States |publisher=NationBooks |year=2010 |isbn=978-1-56858-657-1 |pages=144–145|quote=In time, however, Arafat and his guerrilla leadership decided that they would have to withdraw, leaving no military and very little political or symbolic presence behind. Their enemy's firepower and overall strategic advantage were too great and it was apparently ready to use them to destroy the whole city over the heads of its inhabitants. The rank and file did not like this decision, and there were murmurings of 'treason' from some of Arafat's harsher critics. Had they not already held out, far longer than any Arab country in any former war, against all that the most powerful army in the Middle East – and the fourth most powerful in the world, according to Sharon – could throw against them? (...) But [Palestinians] knew that, if they expected too much, they could easily lose [Lebanese Muslim support] again. 'If this had been Jerusalem', they said, 'we would have stayed to the end. But Beirut is not outs to destroy.}}</ref>
* End of the [[Palestinian insurgency in South Lebanon]]
* Beginning of the [[South Lebanon conflict (1985–2000)|Southern Lebanon conflict]]
| territory         = Start of the [[Israeli occupation of Southern Lebanon]]
| combatant1        = {{ubl|'''{{flag|Israel|size=22px}}'''|[[File:Flag of the Lebanese Forces.svg|23px]] [[Lebanese Forces (militia)|Lebanese Forces]] (16 September 1982){{bulleted list
| {{flagicon image|Former Flag of the Lebanese Army.svg|size=20px}} [[South Lebanon Army]]}}}}
| combatant2        = {{ubl|[[File:Flag of Palestine.svg|23px|border]] '''[[Palestine Liberation Organization|PLO]]'''
| {{flagicon|Syria|1980}} [[Ba'athist Syria|Syria]]}}
{{collapsible list
| title = Others:
| {{flagicon image|Lebanese National Resistance Front.jpg}} [[Lebanese National Resistance Front]]
| [[File:Flag of Mourabitoun.svg|20px|border]] [[Al-Mourabitoun]]
| [[File:Flag of Kurdistan Workers' Party 1978.svg|20px|border]] [[Kurdistan Workers' Party|PKK]]<ref name="PKK1">{{cite web|url=http://www.cdi.org/terrorism/pkk-pr.cfm |title=In the Spotlight: PKK (A.k.a KADEK) Kurdish Worker's Party |publisher=Cdi.org |access-date=29 February 2012 |url-status=dead |archive-url=https://web.archive.org/web/20110813012428/http://www.cdi.org/terrorism/pkk-pr.cfm |archive-date=13 August 2011 }}</ref><ref name="PKK2">{{cite web|url=http://www.xs4all.nl/~kicadam/kurdistan/2_99/ocalan.html |title=Abdullah Öcalan en de ontwikkeling van de PKK |publisher=Xs4all.nl |access-date=29 February 2012 |url-status=dead |archive-url=https://web.archive.org/web/20101215175054/http://www.xs4all.nl/~kicadam/kurdistan/2_99/ocalan.html |archive-date=15 December 2010 }}</ref><ref name="PKK3">{{cite web|url=http://www.niqash.org/content.php?contentTypeID=75&id=2285&lang=0 |title=a secret relationship |publisher=Niqash.org |access-date=29 February 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120314022637/http://www.niqash.org/content.php?contentTypeID=75&id=2285&lang=0 |archive-date=14 March 2012 }}</ref>
}}
| commander1        = {{ubl|{{flagicon|Israel}} [[Menachem Begin]]|{{flagicon|Israel}} [[Ariel Sharon]]|{{flagicon|Israel}} [[Rafael Eitan]]|{{flagicon|Israel}} [[David Ivry]]|{{flagicon|Israel}} [[Ze'ev Almog]]|{{flagicon|Israel}} [[Yekutiel Adam]]{{KIA}}|[[File:Flag of the Lebanese Forces.svg|23px]] [[Elie Hobeika]]|{{flagicon image|Former Flag of the Lebanese Army.svg|size=20px}} [[Saad Haddad]]}}
| commander2        = {{ubl|[[File:Flag of Palestine.svg|23px|border]] [[Yasser Arafat]]|[[File:Flag of Palestine.svg|23px|border]] [[Saad Sayel]]{{KIA}}|{{flagicon|Syria|1980}} [[Hafez al-Assad]]|{{flagicon|Syria|1980}} [[Mustafa Tlass]] |{{flagicon|Syria|1980}} [[Hikmat al-Shihabi]]|{{flagicon image|Lebanese National Resistance Front.jpg}} [[Walid Jumblatt]]|[[File:Flag of Mourabitoun.svg|20px|border]] [[Ibrahim Kulaylat]]|[[File:Flag of the Kurdistan Workers' Party (1978-1995).svg|20px|border]] [[Mahsum Korkmaz]]}}
| strength1         = {{ubl|'''Israel:'''{{ubl|78,000 troops|800 tanks|1,500 APCs|634 aircraft}}|'''LF''':{{ubl|30,000 troops}}|'''SLA''':{{ubl|5,000 troops|97 tanks}}}}
| strength2         = {{ubl|'''Syria:'''{{ubl|22,000 troops|352 tanks|300 APCs|450 aircraft|300 artillery pieces|100 anti-aircraft guns|125 SAM batteries}}|'''PLO:''' {{ubl|15,000 troops|80 tanks|150 APCs|350+ artillery pieces|250+ anti-aircraft guns}}}}
| casualties1       = {{ubl|'''Israel''':{{ubl|654 killed and 3,887 wounded (1982–85)<ref>Uri Ben-Eliezer, ''War over Peace: One Hundred Years of Israel's Militaristic Nationalism'', University of California Press (2019)</ref><ref>Gad Barzilai, ''Wars, Internal Conflicts, and Political Order: A Jewish Democracy in the Middle East'', State University of New York Press (1996)</ref>|4 missing|12 captured|1 aircraft lost|2 helicopters lost}}}}
| casualties2       = {{ubl|'''PLO''': {{ubl|1,000–2,400 killed<ref name=Gabriel>Gabriel, Richard, A, ''Operation Peace for Galilee, The Israeli-PLO War in Lebanon'', New York: Hill & Wang. 1984, p. 164, 165, {{ISBN|978-0-8090-7454-9}}</ref><ref name=payment/>|6,000 captured<ref>{{cite web|url=https://www.nytimes.com/1982/06/15/world/israeli-general-says-mission-is-to-smash-plo-in-beirut.html|title=Israeli General Says Mission Is to Smash P.L.O. in Beirut|date=15 June 1982|work=The New York Times|access-date=1 May 2017}}</ref>}}'''Syria''': {{ubl|1,200 killed|296 captured|300–350 tanks lost|150 [[Armored personnel carriers|APCs]] lost|c. 100 artillery pieces lost|82–86 aircraft lost|12 helicopters lost|29 [[Surface to air missile|SAM]] missile batteries lost<ref name=Pollack>''Arabs at War: Military Effectiveness, 1948–1991''</ref>}}}}
| casualties3       = '''Total casualties:''' 19,085 killed and 30,000 wounded.<ref name=Race /><br />
'''Civilians at [[Sabra-Shatila massacre]]''': 800–3,500 killed.<ref name=Race /><br />
Also see [[#Casualties|Casualties]] below.
}}
{{Campaignbox Lebanese Civil War}}
{{Campaignbox 1982 Lebanon War}}

The '''1982 Lebanon War''', also called the '''Second Israeli invasion of Lebanon''',<ref>{{cite book |last1=MacQueen |first1=Benjamin |title=An Introduction to Middle East Politics: Continuity, Change, Conflict and Co-operation |date=2013 |publisher=[[Sage Publishing]] |page=73}}</ref><ref>{{cite book |last1=Ramsbotham |first1=Oliver |last2=Woodhouse |first2=Tom |title=Encyclopedia of International Peacekeeping Operations |date=1999 |publisher=Bloomsbury Publishing |page=136}}</ref><ref>{{cite book |last1=Lindley-French |first1=Julian |title=A Chronology of European Security and Defence 1945–2007 |date=2007 |publisher=Oxford University Press |pages=145–146, 155}}</ref> began on 6 June 1982, when [[Israel]] invaded [[southern Lebanon]]. The invasion followed a series of attacks and counter-attacks between the [[Palestine Liberation Organization]] (PLO) operating in southern Lebanon and the [[Israel Defense Forces]] (IDF), which had caused civilian casualties on both sides of the border. The Israeli military operation, codenamed '''Operation Peace for Galilee''', was launched after gunmen from the [[Abu Nidal Organization]] attempted to assassinate [[Shlomo Argov]], Israel's ambassador to the United Kingdom. Israeli prime minister [[Menachem Begin]] blamed the PLO,<ref>[Ze'ev Schiff, Ehud Ya'ari, [https://books.google.com/books?id=z99HgBsKp3sC&pg=PA98 ''Israel's Lebanon War,''] Simon and Schuster 1985 pp.98f:'Argov had been shot by an unusual weapon of Polish manufacture known as a WZ 63,  . . Israeli intelligence knew that this late-model weapon had been supplied to Abu Nidal's organization but not yet to other terrorist groups. . . The key point that the intelligence officers wanted to convey to the Cabinet was that Abu Nidal's organization was an exception among the Palestinian terror groups. Once among Yasser Arafat's closest friends, Abu Nidal had over the years turned into the chairman's most vicious enemy . .Abu Nidal referred to Arafat contemptuously as "the Jewess's son" and had made repeated attempts on his life. Arafat, in return, had pronounced a death sentence on Abu Nidal.'</ref><ref>[[Kai Bird]], [https://books.google.com/books?id=SjctAgAAQBAJ&pg=PT288 ''The Good Spy: The Life and Death of Robert Ames,''] Random House 2014 p.288:'When Prime Minister Menachem Begin was told that the assassins were Abu Nidal's men -sworn enemies of Arafat and the PLO- he reportedly scoffed,"They're all PLO, Abu Nidal, Abu Shmidal- we have to strike at the PLO".'</ref> using the incident as a ''[[casus belli]]''.<ref>Kahalani, [https://books.google.com/books?id=TRhE--Ru9mYC&dq=%22peace+for+galilee%22&pg=PA299 ''A Warriors Way''], Shapolsky Publishers (1994) pp. 299–301</ref><ref>[[Harvey W. Kushner]], [https://books.google.com/books?id=ZOfkAoDb_2IC&dq=shlomo+Argov+abu+nidal&pg=PA13 ''Encyclopedia of Terrorism''] Sage Publications (2003), p.13</ref>{{efn-lr|Note that scholars describe this variously as a [[pretext]] (i.e. an excuse for a pre-planned invasion) or as the actual provocation which sparked an otherwise avoidable conflict}} It was the second invasion of Lebanon by Israel, following the [[1978 South Lebanon conflict]].

The Israelis sought to end [[Palestinian insurgency in South Lebanon|Palestinian attacks from Lebanon]], destroy the [[Palestine Liberation Organization]] (PLO) in the country, and install a pro-Israel [[Lebanese Maronite Christians|Maronite Christian]] government.<ref>{{cite book |last1=Tucker |first1=Spencer C. |url=https://archive.org/details/encyclopediaarab00tuck |title=The Encyclopedia of the Arab-Israeli Conflict. A Political, Social, and Military |last2=Roberts |first2=Priscilla |publisher=ABC-CLIO |year=2008 |isbn=978-1-85109-841-5 |page=[https://archive.org/details/encyclopediaarab00tuck/page/n698 623] |url-access=limited}}</ref><ref>{{cite book |last=Bickerton |first=Ian J. |title=The Arab-Israeli Conflict: A History |publisher=Bloomsbury Publishing |year=2009 |isbn=978-1-86189-527-1 |page=151}}</ref><ref>{{cite book |last=Martin |first=Gus |url=https://www.google.co.uk/search?hl=es-419&q=The%20operation%20was%20called%20Operation%20Peace%20for%20Galilee%20and%20was%20launched%20in%20reply%20to%20ongoing%20PLO%20attacks%20from%20its%20Lebanese%20bases.&gbv=2&um=1&ie=UTF-8&tbo=u&tbm=bks&source=og&sa=N&tab=wp |title=Understanding Terrorism: Challenges, Perspectives, and Issues |publisher=Sage Publications |year=2013 |isbn=978-1-4522-0582-3 |quote="The operation was called Operation Peace for Galilee and was launched in reply to ongoing PLO attacks from its Lebanese bases."}}</ref> Israeli forces attacked and overran PLO positions in southern Lebanon and briefly clashed with the [[Syrian Arab Army|Syrian Army]], who [[Syrian occupation of Lebanon|occupied]] most of the country's northeast. The Israeli military, together with the [[South Lebanon Army]], seized control of the southern half of Lebanon and [[Siege of Beirut|laid siege to]] the capital [[Beirut]]. The [[Lebanese Forces (militia)|Lebanese Forces]] however, despite their clandestine alliance with Israel, refused to participate in the war against the PLO as their leader [[Bachir Gemayel]] viewed any direct involvement as assisting an invading army.<ref>{{cite web|url= https://jcpa.org/the-rise-and-fall-of-bachir-gemayel/ | title= Israel and the Lebanon Quagmire, 1982 | date= 21 September 2025|work=JCPA}}</ref> Surrounded in West Beirut and subjected to heavy Israeli bombardment, the PLO and their allies negotiated a ceasefire with the aid of United States [[special envoy]] [[Philip Habib]]. The PLO, led by [[Yasser Arafat]], were evacuated from Lebanon, overseen by a [[Multinational Force in Lebanon|multinational peacekeeping force]]. By expelling the PLO, removing Syrian influence over Lebanon, and installing a pro-Israeli Christian government led by [[President of Lebanon|President]] [[Bachir Gemayel]], the Israeli government hoped to sign a treaty that would give Israel "forty years of peace".<ref>[[1982 Lebanon War#reffriedman2006|Friedman, p. 157]]</ref>

Following the assassination of Gemayel in September 1982, Israel's position in Beirut became untenable and the signing of a peace treaty became increasingly unlikely. There was outrage at the IDF's role in the Israeli-backed, [[Phalangist]]-perpetrated [[Sabra and Shatila massacre]] of Palestinians and Lebanese [[Shias]]. This stoked Israeli public disillusionment with the war. The IDF withdrew from Beirut and ended its operation on 29 September 1982.<ref>{{cite news |title=Two decades on, Israel confronts legacy of 'forgotten' south Lebanon occupation |url=https://www.timesofisrael.com/forty-years-later-israels-scars-from-first-lebanon-war-still-havent-healed/ |work=[[The Times of Israel]] |date=18 June 2021}}</ref> The [[May 17 Agreement]] of 1983 ended the state of war between Israel and Lebanon, and provided for an Israeli withdrawal from the country. Amid rising casualties from guerrilla attacks, the IDF retreated south of the [[Awali (river)|Awali river]] on 3 September 1983.<ref>{{cite news |title=Israel units start the withdrawal from Beirut area |url=https://www.nytimes.com/1983/09/04/world/israel-units-start-the-withdrawal-from-beirut-area.html |work=[[The New York Times]] |date=4 September 1983}}</ref>

From February to April 1985, the Israeli military undertook a phased withdrawal to its "[[Israeli occupation of Southern Lebanon|South Lebanon security zone]]" along the border. The Israeli occupation saw the emergence of [[Hezbollah]], an Iranian-backed Shia Islamist group.<ref>{{Cite web |date=2024-09-24 |title=Hezbollah {{!}} Meaning, History, & Ideology {{!}} Britannica |url=https://www.britannica.com/topic/Hezbollah |access-date=2024-09-24 |website=www.britannica.com |language=en}}</ref> It [[South Lebanon conflict (1985–2000)|waged a guerrilla war]] against the Israeli occupation until the IDF's final withdrawal from Lebanon in 2000.<ref name="Morris2">Morris, Benny: ''Righteous Victims: A History of the Zionist-Arab Conflict, 1881–1998''</ref>  In Israel, the 1982 invasion is also known as the '''First Lebanon War'''.{{efn-lr|The [[2006 Lebanon War]] is regarded as the "Second Lebanon War" in Israel and the [[2024 Israeli invasion of Lebanon]] is regarded as the '''Third Lebanon War''' by some Israeli sources.<ref>{{cite news |last=sales |first=Ben |date=1 October 2024 |title=Israel's Third Lebanon War is underway: What you need to know |url=https://www.timesofisrael.com/israels-third-lebanon-war-is-underway-what-you-need-to-know/ |location=Times of Israel |access-date=6 October 2024}}</ref><ref>{{cite news |date=23 September 2024 |title=Events in North amount to 'Third Lebanon War,' security official says |url=https://www.jpost.com/breaking-news/article-821325 |work=Jerusalem Post |access-date=6 October 2024 |archive-date=6 October 2024 |archive-url=https://web.archive.org/web/20241006115626/https://www.jpost.com/breaking-news/article-821325 |url-status=live }}</ref>}}

==Background==
During the [[1948 Palestine war]], 730,000 Palestinians [[1948 Palestinian expulsion and flight|fled or were forced to leave]] by Zionist forces,{{efn-lr|Before the establishment of Israel, Palestinians were expelled by Zionist paramilitaries; after the establishment of Israel, Palestinians were expelled by the Israeli army itself}} of which 100,000 arrived in Lebanon.{{sfn|Meier|2016|p=35}}<ref>Benny Morris (2004). ''The Birth of the Palestinian Refugee Problem Revisited''. Cambridge University Press. pp xiv–xx. {{ISBN|978-0-521-00967-6}} (pbk.)</ref> Most of the guerrillas would be recruited from Palestinian refugee camps.{{sfn|Meier|2016|p=38–39}} By 1969, this population had grown to 235,000 as a result of natural population growth and immigration, including Palestinians who [[1967 Palestinian exodus|fled or were expelled by Israel]] during the 1967 war.<ref name=":3">{{Cite book |last=Brynen |first=Rex |title=Sanctuary and survival: the PLO in Lebanon |date=2019 |publisher=Routledge |isbn=978-0-429-30531-3 |edition=Facsim. |location=London |pages=25}}</ref> On the eve of the 1982 Israeli invasion, the Palestinian population in Lebanon was 375,000.<ref name=":3" />

The 1967 [[Six-Day War]] stimulated the growth of the [[Palestinian fedayeen]] (guerrillas).{{sfn|Meier|2016|p=38–39}}  After 1967, the number of armed Palestinians increased from 200 to 2,000 and by 1968 it had reached 15,000.{{sfn|Meier|2016|p=38–39}}

=== PLO's objectives ===
Palestinian guerrilla action intended to serve as a [[Wars of national liberation|war of national liberation]] for Palestinians.<ref name=":22">{{Cite book |last=Brynen |first=Rex |title=Sanctuary and survival: the PLO in Lebanon |date=2019 |publisher=Routledge |isbn=978-0-429-30531-3 |edition=Facsim. |location=London |pages=166–167}}</ref> In 1968, PLO's objective was to establish a single democratic state in all of historical Palestine with equal rights for Jews, Muslims and Christians.<ref name="handbook">{{cite book |title=Political Handbook of the World 2012 |date=2 April 2012 |publisher=[[SAGE Publications]] |isbn=9781608719952 |page=1634}}</ref> It was around this time that Palestinians began to conduct raids into Israel. By 1977, the objective had evolved to establishing a Palestinian state in the West Bank and Gaza Strip, alongside Israel.<ref name=":22"/><ref name=":1">{{Cite book |title=The Middle East |date=2019 |publisher=[[SAGE Publications]] |editor-last=Lust |editor-first=Ellen |pages=93–94}}</ref><ref name="handbook" />

===Relocation of PLO from Jordan to South Lebanon===
{{Main|Black September in Jordan|Palestinian insurgency in South Lebanon}}
In 1970, a large influx of Palestinians from Jordan went into Lebanon after the [[Black September (Jordan)|Black September]] conflict. This caused an additional demographic imbalance within Lebanese society, and affected its democratic institutions established earlier by the [[National Pact]].<ref>Kissinger, Henry (1999). ''Years of Renewal'', Phoenix Press. {{ISBN|978-1-84212-042-2}}. p. 1022. ''"I think with sadness of these civilized men who in a turbulent part of the world had fashioned a democratic society based on genuine mutual respect of religion. Their achievement did not survive. The passions sweeping the area were too powerful to be contained by subtle constitutional arrangements. As it had attempted in Jordan, the Palestinian movement wrecked the delicate balance of Lebanon's stability. Before the peace process could run its course, Lebanon was torn apart. Over its prostrate body of writing all the factions and forces of the Middle East still chase their eternal dreams and act out their perennial nightmares."''</ref>

By 1975, the refugees numbered more than 300,000 and the PLO in effect created an unofficial state-within-a-state, particularly in [[Southern Lebanon]], which then played an important role in the [[Lebanese Civil War]]. There had been continual violence near the Lebanon-Israel border between [[Israel]] and the PLO, starting from 1968; this increased following the relocation of PLO bases to Lebanon after the civil war in Jordan.

===Lebanese Civil War===
{{main|Lebanese Civil War}}

====Incidents 1975–1980====
The violence between Israel and the PLO peaked during [[Operation Litani]] in 1978, provoked by the [[Coastal Road Massacre]] which was carried out by Palestinian militants. The [[United Nations Interim Force in Lebanon]] (UNIFIL) was created after the incursion, following the adoption of [[United Nations Security Council Resolution 425]] in March 1978 to confirm Israeli withdrawal from Southern Lebanon, restore international peace and security, and help the government of Lebanon restore its effective authority in the area.<ref>{{cite web |url=http://legal.un.org/repertory/art98/english/rep_supp5_vol5-art98_e.pdf#pagemode=none |title=Extracts relating to Article 98 of the Charter of the United Nations: Supplement No 5 (1970–1978) |access-date=6 August 2006|work=Repertory of Practice of United Nations Organs |publisher=United Nations |pages=§275 |url-status=dead |archive-url=https://web.archive.org/web/20131019222951/http://legal.un.org/repertory/art98/english/rep_supp5_vol5-art98_e.pdf |archive-date=19 October 2013 }}</ref>

[[File:Lebanon civil war map 1976.gif|thumb|300px|A map showing the power balance in Lebanon, 1976: <br/>Dark Green – controlled by Syria:<br/>Purple – controlled by Maronite groups;<br/>Light Green – controlled by Palestinian militias]]

As early as 1976, Israel had been assisting Lebanese Christian militias in their sporadic battles against the PLO.<ref name="Morrisp???">[[#refMorris1999|Morris, p. ???]]</ref> During [[Operation Litani]] in 1978, Israel established a security zone in southern Lebanon with mostly Christian inhabitants, in which they began to supply training and arms to Christian militias which would later form the [[South Lebanese Army]].<ref name="Moris1999p503">[[#refMorris1999|Morris, p. 503]]</ref> But Israel's main partner was to be the [[Maronites|Maronite]] [[Kataeb Party|Phalange]] party, whose paramilitary was led by [[Bashir Gemayel]], a rising figure in Lebanese politics.<ref name="Moris1999p503" /> Gemayel's strategy during the early stages of the [[Lebanese Civil War]] was to provoke the Syrians into retaliatory attacks on Christians, such that Israel could not ignore.<ref name="Morris, p. 505">[[#refMorris1999|Morris, p. 505]]</ref>

In 1978, [[Menachem Begin]] declared that Israel would not allow a genocide of Lebanese Christians, while refusing direct intervention.<ref name="Morris, p. 505"/> Hundreds of Lebanese militiamen began to train in Israel, at the IDF Staff and Command College. The relationship between Israel and the Maronites began to grow into a political-strategic alliance, and members of the Israeli government like [[Ariel Sharon]] began to conceive of a plan to install a pro-Israel Christian government in Lebanon, as it was known that Bashir wanted to remove the PLO and all Palestinian refugees in the country.<ref>[[#refMorris1999|Morris, p. 509]]</ref>

From June to December 1980, the [[United Nations Interim Force in Lebanon]] (UNIFIL) recorded an increase in activities along the border zone. No attacks by Palestinian forces on Israel were recorded, while the IDF incursions across the armistice line into Lebanon increased markedly, with minefields being laid, gun posts established, and generally involving numerous violations of Lebanese air-space and territorial waters. This was formally protested by the Lebanese government to the UN Security Council and General Assembly in several communications as violations by Israel of United Nations Security Council Resolution 425. During the same period Israel protested numerous attacks by Palestinian forces, unrelated to the Lebanese border zone.<ref>{{cite web|url=http://daccess-dds-ny.un.org/doc/UNDOC/GEN/N80/333/72/PDF/N8033372.pdf?OpenElement|title=UN Security Council report S/14295|work=UN.org|access-date=1 May 2017|url-status=dead|archive-url=https://web.archive.org/web/20141020052325/http://daccess-dds-ny.un.org/doc/UNDOC/GEN/N80/333/72/PDF/N8033372.pdf?OpenElement|archive-date=20 October 2014}}</ref>

====1981 events and cease-fire====
In his report for the period of 12 December 1980 to 12 June 1981 on UNIFIL activities, the Security Council Secretary General noted that infiltrations into the border zone by Palestinian armed forces had decreased relative to the previous six months.<ref>{{cite web|url=https://www.un.org/en/documents/|title=United Nations Security Council document S/14537|work=UN.org|access-date=1 May 2017}}</ref> Indeed, the PLO had recognized their vulnerable position, and avoided overtly provoking Israel.<ref>{{Cite book |title=The Middle East after the Israeli invasion of Lebanon |date=1986 |publisher=Syracuse University Press |isbn=978-0-8156-2388-5 |editor-last=Freedman |editor-first=Robert Owen |edition=1st |series=Contemporary issues in the Middle East |location=Syracuse, N.Y |pages=235–236}}</ref> In contrast the IDF had launched various attacks on Lebanese territory often in support of the Lebanese Christian militia. In doing so Israel had violated UN Security Council resolution 425 on hundreds of occasions [paragraph 58]. Where the initiator(s) of attacks could be identified in the report, in 15 cases Palestinian militants were to blame while on 23 occasions the Militia and/or the IDF were the instigators, the latter also being responsible for the most violent confrontation of the period on 27 April [paragraph 52].

From 16 June to 10 December 1981,<ref name="UN1981">{{cite web|url=https://www.un.org/en/documents/|title=United Nations Security Council document S/14789|work=UN.org|access-date=1 May 2017}}</ref> a relative quiet was reported continuing from 29 May 1981 until 10 July. This was broken when "Israeli aircraft resumed strikes against targets in southern Lebanon north of the UNIFIL area. (The Israeli strikes) led to exchanges of heavy firing between armed elements (Palestinians), on the one hand, and IDF and the de facto forces (Christian Militia) on the other. On 13 and 14 July, widespread Israeli air-strikes continued. Armed elements (Palestinians) fired into the enclave and northern Israel." Israeli-initiated attacks had led to rocket and artillery fire on northern Israel. This pattern continued in the coming days.

Israel renewed its air strikes in an attempt to trigger a war that would allow it to drive out the PLO and restore peace to the region.<ref name=schiff>[[#refSchiff1984|Schiff & Ya'ari, pp.&nbsp;35–36]]</ref> On 17 July, the Israel Air Force launched a massive attack on PLO buildings in downtown Beirut. "Perhaps as many as three hundred died, and eight hundred were wounded, the great majority of them civilians."<ref name="Benny Morris p507">[[#refMorris1999|Morris, p. 507]]</ref> The Israeli army also heavily targeted PLO positions in south Lebanon without success in suppressing Palestinian rocket launchers and guns.<ref name="The Israeli Air Force">{{cite web|url=http://www.iaf.org.il/2557-30092-en/IAF.aspx|title=The Israeli Air Force|work=IAF.org.il|access-date=1 May 2017}}</ref>

As a result, thousands of Israeli citizens who lived near the Lebanese border headed south. There patterns of Israeli-initiated airstrikes and Palestinian retaliations with attacks on northern Israel are in contrast with the official Israeli version "A ceasefire declared in July 1981 was broken: the terrorists continued to carry out attacks against Israeli targets in Israel and abroad, and the threat to the northern settlements became unbearable."<ref name="The Israeli Air Force"/>

On 24 July 1981, United States Undersecretary of State Philip Habib brokered a ceasefire badly needed by both parties,<ref name=UN1981 /> the best achievable result from negotiations via intermediaries, aimed at complying with the decisions of UN Security Council resolution 490. The process was complicated, requiring
<blockquote>shuttle diplomacy between Damascus, Jerusalem, and Beirut, United States. Philip Habib concluded a ceasefire across the Lebanon border between Israel and the PLO. Habib could not talk to the PLO directly because of Kissinger's directive, so he used a Saudi member of the royal family as mediator. The agreement was oral – nothing could be written down since Israel and the PLO did not recognize each other and refused to negotiate with each other – but they came up with a truce. ... Thus the border between Lebanon and Israel suddenly stabilized after over a decade of routine bombing.<ref>Kameel B. Nazr (2007) ''Arab and Israeli Terrorism: The Causes and Effects of Political Violence''. McFarland & Company. {{ISBN|978-0-7864-3105-2}} [https://books.google.com/books?id=QRXURzwdXS4C]</ref></blockquote>

Between July 1981 and June 1982, as a result of the Habib ceasefire, the Lebanese-Israeli border "enjoyed a state of calm unprecedented since 1968."<ref name="Morris2"/> But the 'calm' was tense. US Secretary of State, [[Alexander Haig]] filed a report with US President [[Ronald Reagan]] on Saturday 30 January 1982 that revealed Secretary Haig's fear that Israel might, at the slightest provocation, start a war against Lebanon.<ref>[[#refReagan2007|Reagan, p.&nbsp;66]]</ref>

The 'calm' lasted nine months. Then, on 21 April 1982, after a landmine killed an Israeli officer while he was visiting a South Lebanese Army gun emplacement in [[Taybeh (Marjaayoun)|Taibe]], Lebanon, the Israeli Air Force attacked the Palestinian-controlled coastal town of [[Damour]], killing 23 people.<ref>[[#reffisk2001|Fisk, p.&nbsp;194]]</ref> Fisk reports further on this incident: "The Israelis did not say what the soldier was doing ... I discovered that he was visiting one of Haddad's artillery positions (Christian militia) and that the mine could have been lain &#91;sic&#93; as long ago as 1978, perhaps even by the Israelis themselves".

On 9 May 1982, Israeli aircraft again attacked targets in Lebanon. Later that same day, UNIFIL observed the firing of rockets from Palestinian positions in the [[Tyre, Lebanon|Tyre]] region into northern Israel, but none of the projectiles hit Israeli towns<ref>Friedman, Thomas L. "Israeli Jets Raid P.L.O. in Lebanon; Shelling follows". ''The New York Times'', 10 May 1982, p. 1.</ref> – the gunners had been ordered to miss.<ref name="Benny Morris p507"/> Major-General Erskine (Ghana), Chief of Staff of UNTSO reported to the [[United Nations Secretary-General|Secretary-General]] and the [[Security Council]] (S/14789, S/15194) that from August 1981 to May 1982, inclusive, there were 2096 violations of Lebanese airspace and 652 violations of Lebanese territorial waters.<ref>[[#refCobban1984|Cobban, p.&nbsp;112]]</ref><ref name="UN15194">[http://domino.un.org/unispal.nsf/9a798adbf322aff38525617b006d88d7/687deff0fe05590a85257019006e4036!OpenDocument UN Doc S/15194] {{webarchive|url=https://web.archive.org/web/20081202004040/http://domino.un.org/unispal.nsf/9a798adbf322aff38525617b006d88d7/687deff0fe05590a85257019006e4036%21OpenDocument |date=2 December 2008 }} of 10 June 1982 ''Report of the Secretary-General on the United Nations Interim Force in Lebanon''</ref> The freedom of movement of UNIFIL personnel and UNTSO observers within the enclave remained restricted due to the actions of [[Amal Movement|Amal]] and the [[South Lebanon Army]] under Major [[Saad Haddad]]'s leadership with the backing of Israeli military forces.<ref name="UN15194"/>

Prior to establishing ceasefire in July 1981, U.N. Secretary-General [[Kurt Waldheim]] noted: "After several weeks of relative quiet in the area, a new cycle of violence has begun and has, in the past week, steadily intensified." He further stated: "There have been heavy civilian casualties in Lebanon; there have been civilian casualties in Israel as well. I deeply deplore the extensive human suffering caused by these developments." The President of the [[United Nations Security Council|U.N. Security Council]], [[Ide Oumarou]] of [[Niger]], expressed "deep concern at the extent of the loss of life and the scale of the destruction caused by the deplorable events that have been taking place for several days in Lebanon".<ref>[http://domino.un.org/unispal.nsf/0/43220e2368a3ddf7052568000052412c?OpenDocument UN Doc S/PV.2292] {{webarchive|url=https://web.archive.org/web/20060312224248/http://domino.un.org/unispal.nsf/0/43220e2368a3ddf7052568000052412c?OpenDocument |date=12 March 2006 }}, 17 July 1981.</ref><ref>{{cite web|url=http://www.wsws.org/articles/2002/feb2002/sab-f22.shtml |title=Sharon's war crimes in Lebanon: the record |publisher=Wsws.org |date=22 February 2002 |access-date=29 February 2012}}</ref>

====Immediate causes====
From the ceasefire, established in July 1981, until the start of the war, the Israeli government reported 270 militant attacks by the PLO in Israel, the occupied territories, and the Jordanian and Lebanese border (in addition to 20 attacks on Israeli interests abroad).<ref name="Becker">{{cite book|last=Becker|first=Jillian|title=PLO: The Rise and Fall of the Palestine Liberation Organization|publisher=AuthorHouse|year=1984|isbn=978-1-4918-4435-9|page=257}}</ref>

In Ariel Sharon's biography by his son, Gilad Sharon, the author referring to the Habib ceasefire, comments: "However, the agreement was explicit only regarding preventing terror from Lebanon, which is why my father encouraged the cabinet not to accept the offer as presented by the Americans."<ref>Gilad Sharon (2011). ''Sharon: The Life of a Leader''. Translated by Mitch Ginsberg. Harper Collins. Chapter 14 [https://books.google.com/books?id=jLq-12NxKZkC]</ref>
<blockquote>The cease-fire, as both the PLO and the Americans saw it, did not include terror attacks stemming from Lebanon and carried out against Jews in Europe and other locales. In a meeting my father had with Alexander Haig and Philip Habib on 25 May 1982, Habib repeated what he had already said many times before: "Terrorist attacks against Israelis and Jews in Europe are not included in the cease-fire agreement.</blockquote>

Arafat pressured the radical factions to maintain the ceasefire because he did not wish to provoke the Israelis into an all-out attack. The PLO acceptance of the ceasefire had led to dissension even within Fatah itself. A faction sympathetic to Abu Nidal forced a military confrontation, with accompanying arrests and executions&nbsp;— an event unprecedented in PLO internal disputes'. Arafat even attempted to distance himself from Palestinian unrest on the West Bank to prevent an Israeli attack.<ref name=Shindler/>

In contrast, Begin, Sharon and Eitan were searching for any excuse to neutralize their military opponents through a breach of the ceasefire. They believed that Arafat was buying time to build up his conventional forces. The Israeli interpretation of the conditions for the ceasefire placed responsibility for any act of Palestinian violence on Arafat's shoulders. It presumed that Arafat had complete control, not only over all factions within the PLO such as the rejectionist Popular Front of George Habash, but also over those outside such as Abu Nidal's Fatah Revolutionary Council and Ahmed Jibril's Popular Front&nbsp;— General Command.<ref name=Shindler/>

In Begin's eyes, the ceasefire was not geographically limited to the Lebanese border. He argued that if Palestinian terrorism struck internationally, then this too would be regarded as a breach of the ceasefire. Begin thus took a stand-off in a local battle as applying to the entire war anywhere in the Middle East or any incident internationally.<ref name=Shindler/>

Eitan commented that there was no difference if a militant threw a grenade in Gaza or fired a shell at a Northern settlement&nbsp;— all such acts broke the ceasefire. Sharon similarly did not wish to draw distinctions between different Palestinian factions, since all blame had to be attached to the PLO. He dismissed attempts at more rational evaluation as masking the real issue. In a speech to a Young Herut conference in April 1982, he accused those who tried to take a more objective standpoint of erecting 'a protective wall around the PLO inside and outside Israel'.<ref name="Shindler">{{Cite book |last=Shindler |first=Colin |url=https://archive.org/details/landbeyondpromis0000shin/mode/2up |title=The Land Beyond Promise: Israel, Likud and the Zionist Dream |publisher=[[I.B. Tauris]] |year=2002 |isbn=978-1-86064-774-1 |publication-place=London; New York |pages=117–120 |postscript=. "A second re-titled edition of Israel, Likud and the Zionist dream: power, politics and ideology from Begin to Netanyahu, published in 1995." Page ix}}</ref>

Further support comes from [[George Wildman Ball|George Ball]], that the PLO had observed the ceasefire.<ref>{{cite journal|last=Siklaw|first=Rami|title=The Dynamics of the Amal Movement in Lebanon 1975–90|journal=[[Arab Studies Quarterly]]|date=Winter 2012|volume=34|issue=1|pages=4–26}}</ref> Israel, he said, continued looking for the "internationally recognized provocation" that Secretary of State [[Alexander Haig]] said would be necessary to obtain American support for an Israeli invasion of Lebanon.<ref>Ball, George W. ''Error and Betrayal in Lebanon'', p. 35.</ref> Secretary Haig's critics have accused him of "greenlighting" the Israeli Invasion of Lebanon in June 1982.<ref>{{cite web|last=Lee |first=Timothy |url=http://www.slate.com/articles/news_and_politics/fighting_words/2004/06/not_even_a_hedgehog.html |title=The stupidity of Ronald Reagan. – Slate Magazine |date=7 June 2004 |publisher=Slate.com |access-date=29 February 2012}}</ref> Haig denies this and says he urged restraint.<ref name="time">{{cite news|url=http://www.time.com/time/magazine/article/0,9171,952421,00.html |title=Alexander Haig |newspaper=Time |location=New York |date=9 April 1984 |access-date=6 April 2011 |archive-url=https://web.archive.org/web/20110428221723/http://www.time.com/time/magazine/article/0%2C9171%2C952421%2C00.html |archive-date=28 April 2011 |url-status=dead }}</ref> In the biography of ceasefire broker Philip Habib, Alexander Haig is cited as leaving the worst impression of all in the lead up to Israel's Lebanon invasion:
<blockquote>Haig thus comes off very badly: not a team player, not able to keep the rest of the administration informed of what was going on beforehand, not willing to tell anyone in the White House why Sharon was so confident during the invasion, hoping that Reagan's special envoy would fail in his mission, and having little sense of what the national security of the United States required—which was not a confrontation between Israeli and Soviet tanks on the road from Beirut to Damascus.<ref>John Boykin (2002), Cursed Is the Peacemaker (Belmont, CA: Applegate Press: 0971943206). Quoted in PHILIP HABIB AND ARIEL SHARON: FROM THE ARCHIVES (2007)[http://delong.typepad.com/sdj/2007/03/philip_habib_an.html]</ref></blockquote>

The American reaction was that they would not apply any undue pressure on Israel to quit Lebanon as the Israeli presence in Lebanon may prove to be a catalyst for the disparate groups of Lebanon to make common cause against both Syrian and Israeli forces. Haig's analysis, which [[Ronald Reagan]] agreed with, was that this uniting of Lebanese groups would allow President [[Elias Sarkis]] to reform the Lebanese central Government and give the Palestinian refugees Lebanese citizenship.<ref>[[#refReagan2007|Reagan, pp.&nbsp;87–90]]</ref> Additional evidence that the United States approved the Israeli invasion comes from longtime CIA analyst Charles Cogan, who says that he was in the room during a May 1982 meeting in [[The Pentagon]] during which Sharon explained to Secretary of Defense [[Caspar Weinberger]] "in great detail how the Israelis were going to invade Lebanon&nbsp;... Weinberger just sat there and said ''nothing''."<ref>{{cite book|last1=Blight|first1=James G.|title=Becoming Enemies: U.S.-Iran Relations and the Iran-Iraq War, 1979–1988|year=2012|publisher=Rowman & Littlefield Publishers|isbn=978-1-4422-0830-8|pages=19, 110–111|display-authors=etal}}</ref>

According to [[Avi Shlaim]], the real driving force behind the Israeli invasion to Lebanon was the defense minister Ariel Sharon. One of his aims was the destruction of PLO military infrastructure in Lebanon and undermining it as a political organization, in order to facilitate the absorption of the West Bank by Israel. The second aim was the establishment of the [[Maronite]] government in Lebanon, headed by [[Bashir Gemayel]] and signing the peace treaty between two countries, the third aim was the expelling of the Syrian Army from Lebanon. Also, according to Shlaim, with the completion of Israeli withdrawals from Sinai in March 1982, under the terms of the [[Egyptian-Israeli Peace Treaty]], the [[Likud]]-led government of Israel hardened its attitude to the Arab world and became more aggressive.<ref>[[#refshlaim2007|Shlaim 2007, p. 412]]</ref>

According to [[Zeev Maoz]] in ''Defending the Holy Land: A Critical Analysis of Israel's National Security and Foreign Policy'', the goals of the war were primarily developed by then Minister of Defense [[Ariel Sharon]] and were fourfold:

# "Destroy the PLO infrastructure in Lebanon, including the PLO headquarters in Beirut."
# "Drive Syrian forces out of Lebanon."
# "Install a Christian-dominated government in Lebanon, with [[Bashir Gemayel]] as President."
# "Sign a peace treaty with the Lebanese government that would solidify the informal Israeli-Christian alliance and convert it into a binding agreement."<ref>[[#refmaoz2006|Maoz, p.&nbsp;181]]</ref>

George Ball testified before the [[US Senate]]'s [[United States House Committee on Foreign Affairs|Foreign Affairs Committee]] that Sharon's long-term strategy, as revealed in conversations, was one of "squeezing the Palestinians out of the West Bank . .allowing only enough of them to remain for work."<ref>[[Yevgeny Primakov]], [https://books.google.com/books?id=qXHKs5WaNgMC&pg=PA201 ''Russia and the Arabs: Behind the Scenes in the Middle East from the Cold War to the Present,''] [[Basic Books]] 2009 p.201.</ref>

The military plan with the code name "Big Pines", prepared by IDF, envisaged invasion to Lebanon up to the highway Damascus-Beirut and linking with Maronite forces. It was first presented to Israeli cabinet on 20 December 1981 by Begin, but rejected by the majority of ministers. According to Avi Shlaim, Sharon and chief of staff [[Rafael Eitan]], realizing that there was no chance in persuading the cabinet to approve a large-scale operation in Lebanon, adopted a different tactic and intended to implement "Operation Big Pines" in stages by manipulating enemy provocations and Israeli responses.<ref>[[#refshlaim1999|Shlaim 1999, pp. 396–397]]</ref>

On 3 June 1982 Israel's ambassador to the United Kingdom, [[Shlomo Argov]] was shot and seriously wounded in London by militants belonging to the Iraqi-backed [[Abu Nidal group|Abu Nidal militant organization]]. The attack was ordered by the [[Iraqi Intelligence Service]].<ref name="Michael Knights">{{cite book|url=https://books.google.com/books?id=FDJmjUUR9CUC&pg=PA5|title=Cradle of Conflict: Iraq And the Birth of Modern U.S. Military Power|access-date=31 May 2012|page=5|isbn=978-1-59114-444-1|last1=Knights|first1=Michael|year=2005|publisher=Naval Institute Press }}</ref><ref name="Mark Ensalaco">{{cite book|url=https://books.google.com/books?id=_ptMTQN8tM8C&pg=PA133|title=Middle Eastern Terrorism: From Black September to September 11|access-date=31 May 2012|author=Ensalaco, Mark|page=133|isbn=978-0-8122-2135-0|date=August 2010|publisher=University of Pennsylvania Press }}</ref><ref name="Goodarzi">{{cite book| url=https://books.google.com/books?id=Co6YXWrepvYC&pg=PA61|title=Syria And Iran: Diplomatic Alliance And Power Politics in the Middle East|access-date=31 May 2012|author=Goodarzi, Jubin|page=61|isbn=978-1-84511-127-4|year=2006|publisher=Bloomsbury Academic }}</ref> Following the attack, the assassins drove to the Iraqi embassy in London, where they deposited the weapon.<ref>{{cite book|last1=Blight|first1=James G.|title=Becoming Enemies: U.S.-Iran Relations and the Iran-Iraq War, 1979–1988|year=2012|publisher=Rowman & Littlefield Publishers|isbn=978-1-4422-0830-8|page=104|display-authors=etal}}</ref> In his memoirs, Sharon stated that the attack was "merely the spark that lit the fuse".<ref>{{cite news | url=https://www.theguardian.com/world/2003/feb/25/israelandthepalestinians.lebanon | title=Obituary of Shlomo Argov | newspaper=The Guardian | access-date=31 May 2012 | quote=At last, the then Israeli defence minister Ariel Sharon had a pretext for his long-planned campaign to eliminate the Palestine Liberation Organisation (PLO) and its headquarters in the Lebanese capital, Beirut. In his memoirs, Sharon admits that the Dorchester ambush was "merely the spark that lit the fuse". | first=Lawrence | last=Joffe | date=25 February 2003}}</ref>

Israeli prime Minister Begin used this as the "internationally recognized provocation" necessary to invade Lebanon. The fact that the Abu Nidal organization was the longtime rival of PLO, that its head was condemned to death by the PLO court, and that the British police reported that PLO leaders were on the "hit list" of the attackers did not deter Begin. Iraq's motives for the assassination attempt may have been to punish Israel for its [[Operation Opera|destruction of Iraq's nuclear reactor in June 1981]], and to provoke a war in Lebanon that Iraqi leaders calculated would be detrimental to the rival Ba'ath regime in Syria—whether Syria intervened to help the PLO or not!<ref>[[#refSchiff1984|Schiff & Ya'ari pp. 97, 99–100]]</ref>

At the Israeli Cabinet meeting the following day, both Begin and Eitan belittled intelligence reports that the likely culprit was the Abu Nidal group. Begin cut short his own advisor on terrorism, arguing that all Palestinian militants were members of the PLO, while Eitan ridiculed the intelligence staff for splitting hairs and demanded to strike at the PLO. Yet Abu Nidal had broken with Arafat and PLO in 1974 over a fundamental principle: namely, that the Palestinian national movement would adopt a phased piecemeal approach to secure a Palestinian state and embark on a political path. The lack of understanding of the difference between Palestinian groups and the total ignorance of Palestinian politics on the part an overwhelming majority of Israelis and Jews played into the hands of those who did not wish to distinguish between the PLO and the Abu Nidal group. Thus, instead of an initiative to locate the Abu Nidal group in Damascus or Baghdad, the plan to invade Lebanon was activated.<ref name=Shindler />

The PLO denied complicity in the attack, but Israel retaliated with punishing air and artillery strikes against Palestinian targets in Lebanon, including the PLO camps. [[Shatila refugee camp|Sabra and the Shatila refugee camp]] were bombed for four hours and the local "Gaza" hospital was hit there. About 200 people were killed during these attacks.<ref>[[#refchomsky1983|Chomsky, p. 197]]</ref> The PLO hit back firing rockets at northern Israel causing considerable damage and some loss of life.{{Citation needed|date=August 2011}} According to another source, twenty villages were targeted in Galilee and 3 Israelis were wounded.<ref name="Shlaim">[[#refshlaim1999|Shlaim 1999, p. 404]]</ref>

According to Shlaim, Yasser Arafat, at that time being in Saudi Arabia, told the Americans through the Saudis that he was willing to suspend cross-border shelling. But that message was disregarded by the Israeli government. President Reagan also sent a message to Begin urging him not to widen the attack.<ref name="Shlaim"/>

On 4 June the Israeli cabinet authorized a large scale invasion.<ref>[[#refHerzog2005|Herzog & Gazit, pp.&nbsp;340–43]]</ref><ref>Hogg, Ian V., Israeli War Machine, Hamlyn Publishing Group Ltd, (1983) p. 171-175 {{ISBN|978-0-600-38514-1}}</ref>

A [[Mossad]] document declassified in 2022 revealed that planning for the invasion began in mid-1981 and that the Lebanese Christian leader Pierre Gemayel was informed of it in January 1982.<ref name=Aderet2022>{{cite news | title = What Historical Mossad Files Reveal About 'Israel's Most Planned War' | author = Ofer Aderet | date = September 8, 2022 | newspaper = Haaretz | url = https://www.haaretz.com/israel-news/2022-09-08/ty-article-magazine/.premium/israels-most-planned-war-historical-mossad-file-details-lebanon-policy/00000183-1dce-d11f-a1e3-5fde579b0000}}</ref> According to the document, Israel's Lebanon policy was mostly dictated by the military rather than the government.<ref name=Aderet2022/>

==Timeline==
===Invasion===
[[File:Lebanon1982.svg|thumb|Troop movements between {{Nowrap|June 6}} and June 25]]
[[File:Israeli troops in south Lebanon (1982).jpg|thumb|An Israeli armored personnel carrier in south Lebanon]]
On 6 June 1982, Israeli forces under direction of Defense Minister [[Ariel Sharon]] launched a three-pronged invasion of southern Lebanon in "Operation Peace for Galilee". Roughly 60,000 troops and more than 800 tanks, heavily supported by aircraft, attack helicopters, artillery, and missile boats, crossed the Israel–Lebanon border in three areas. Simultaneously, Israeli armor, paratroopers, and naval commandos set sail in [[Shayetet 11|amphibious landing ships]] from [[Ashdod]] towards the Lebanese coast north of Sidon. Israel's publicly stated objective was to push [[Palestine Liberation Organization|PLO]] forces back {{convert|40|km|mi|sp=us}} to the north.<ref name=Davis/>

The westernmost Israeli force was to advance up the coastal road to [[Tyre, Lebanon|Tyre]]. Its mission was to bypass Tyre and destroy three PLO camps in the area, then move up the coast towards [[Sidon]] and [[Damour]], while Israeli forces would simultaneously conduct an amphibious landing north of Sidon to cut off the retreat of PLO forces there. In the center, two divisions were to advance both north and south of the high ground overlooked by [[Beaufort Castle, Lebanon|Beaufort Castle]], which was being used as a PLO stronghold, and take the road junction at [[Nabatieh]], while an elite reconnaissance battalion was to take the castle itself.<ref name=Davis/>

The two divisions were then to split, with one heading west to link up with the forces along the coast, and another towards [[Jezzine]] and from there along the right flank of Syrian forces in the [[Bekaa Valley]]. The easternmost Israeli force, the largest of the three, advanced into the Bekaa Valley. Its mission was to prevent Syrian reinforcements from being sent and to stop Syrian forces from attempting to interfere with the operation on the coastal road.<ref name=Davis>Davis, H. Thomas: ''40 Km into Lebanon: Israel's 1982 Invasion''</ref>

===Advance on Beirut===
[[File:Drive towards the beaufort 1982.jpg|thumb|Israeli troops driving towards Beaufort Castle, 1982]]
[[File:GunfireTarget5-17June1982.png|thumb|An Israeli bombardment of a PLO position on the Lebanese coast]]

The advance along the coastal road was preceded by heavy artillery bombardment and airstrikes, but quickly became bogged down and was soon behind schedule. The narrowness of the road forced a slow advance, and Israeli armor became stuck in a large traffic jam. Several armored vehicles were knocked out by PLO fighters with anti-tank weaponry hiding in three groves along the road. One of the lead battalions, which was supposed to bypass Tyre and establish a blocking position to the north of the city, made a wrong turn and found itself in the center of the city, where it was ambushed.<ref name=Davis/>

At eight in the evening the force crossed the [[Litani River]] and headed towards Sidon. In the central sector, the mission went as planned. The two Israeli divisions bypassed Beaufort Castle on both sides. Although an order to postpone the capture of Beaufort Castle was issued, it did not reach Israeli forces in time to prevent the operation, and Israeli troops of the [[Golani Brigade]] captured the castle in the fiercely-fought [[Battle of the Beaufort]]. The road junction at Nabatieh was also secured by the end of the first day.<ref name=Davis/>

Meanwhile, the easternmost force penetrated into the Bekaa Valley and bore down on the Syrian positions. One division bypassed Mount Hermon via a road bulldozed by Israeli military engineers and cleared the town of Hasbaiya before swinging right and advancing towards Rachaiya. Though Israeli forces halted in the floor of the valley, they were flanking Syrian forces from the east and west. The Syrians put up minimal resistance and conducted some harassing artillery fire. By the end of the first day, the operation had gone almost entirely according to plan, though the advance along the coastal road was behind schedule.<ref name=Davis/>

[[File:P60LandAwali.jpg|thumb|Israeli armored vehicles disembark from a landing craft during an amphibious landing]]
Despite the delays, the Israeli advance along the coastal road continued steadily. This advance was supported by heavy air attacks against PLO positions that included the use of [[cluster bomb]]s. Israeli missile boats also employed 76mm cannons to destroy targets along the coast, firing 3,500 shells during ten days of fighting. Israeli armor continued to advance towards Sidon, while other Israeli infantry attacked the three Palestinian refugee camps in the area that were used as PLO bases: Rashidiya, Burj ash-Shamali, and al-Bass.<ref name="ReferenceB">Mommsen, Klaus: ''60 YEARS ISRAEL NAVY: Chel Ha'Yam Ha'Yisraeli''</ref><ref name="Morris2"/><ref name=Davis/>

The camps were all crisscrossed with networks of bunkers, trenches, and firing positions. The Israelis took each camp section by section using the same method: warnings were blared by loudspeaker urging civilians to leave, before air and artillery bombardment commenced, followed by an infantry assault. Israeli infantry had to engage in fierce urban combat in narrow streets. The PLO defenders put up strong resistance and sometimes used civilians as human shields. It took four days of combat to secure Rashidiya and three days to secure the other two camps.<ref name="ReferenceB"/><ref name="Morris2"/><ref name=Davis/>

At the same time, an Israeli amphibious operation was conducted north of Sidon, beginning with a diversionary bombardment of targets away from the landing zone by missile boats and aircraft. Two groups of commandos from the [[Shayetet 13]] naval commando unit then came ashore to probe enemy defenses and secure the landing site, one of which swam to the mouth of the Awali River and another which came ashore on the landing beach in rubber dinghies. After a brief gunbattle with armed Palestinians, the main landings began, with paratroopers coming ashore in rubber dinghies to establish a beachhead followed by three landing craft that unloaded troops and armor. Over the following days, the three landing ships moved between Israel and Lebanon, shuttling more troops and armor onto the beachhead.<ref name="ReferenceB"/><ref name="Morris2"/><ref name=Davis/>

The PLO response was limited to ineffective mortar fire, while Israeli missile boats and aircraft attacked Palestinian positions in response. In total, about 2,400 soldiers and 400 tanks and armored personnel carriers were landed. From the beach, these forces advanced on Sidon, supported by naval gunfire from missile boats. At the same time, Israeli forces in the central sector advanced towards [[Jezzine]] while those in the eastern sector remained in place, but began setting up heavy artillery positions that put Syrian SAM units in artillery range.<ref name="ReferenceB"/><ref name="Morris2"/><ref name=Davis/>

Meanwhile, Israeli forces advancing along the coastal road reached the outskirts of Sidon, but were delayed by heavy resistance in the main streets and the [[Ain al-Hilweh]] refugee camp on the southeastern edge of the city, and after an attempt by paratroopers to capture the city center and secure the south–north route through the city failed, the city was bypassed via a detour through the hills to the east. After linking up with the forces that had landed north of Sidon, while another force of paratroopers and armor with heavy air and artillery support advanced through central Sidon and cleared a south–north route through the city in fierce fighting. Another Israeli division passed through the city to link up with the forces north of Sidon.<ref name="Morris2"/>
[[File:Merkavah Tank of Tzur Maor with destroyed Syrian tanks.jpg|thumb|An Israeli tank advances past destroyed Syrian tanks during the [[Battle of Jezzine (1982)|Battle of Jezzine]]]] 
In the center, most Israeli forces advancing towards Jezzine bypassed the town to continue advancing towards the main highway in the area, leaving a blocking force in the area that was soon joined by an armored brigade. Fighting broke out in Jezzine between the Israelis and Syrian forces holding the town. In the [[Battle of Jezzine (1982)|Battle of Jezzine]], Israeli forces consisting of two tank battalions supported by a reconnaissance company and engineering platoon took Jezzine in a fierce daylong battle against a Syrian battalion, then repulsed a fierce counterattack by dozens of Syrian commandos during the night in combat that lasted until dawn. Meanwhile, Israeli forces continued to advance along the Syrians' right flank.

Israeli forces advancing along the coast also completed the capture of Sidon. Paratroopers attacked the Kasbah while a combined force of Golani Brigade infantry and tanks attacked Ain al-Hilweh. The Kasbah was secured in three days; the paratroopers advanced cautiously and managed to take it without suffering any casualties. However, the fighting at Ain al-Hilweh was to prove some of the fiercest of the entire war. The camp was heavily fortified and defended by PLO fighters and Islamic fundamentalists.<ref name="ReferenceC">גלעד בארי, מלחמת לבנון – נגד פלסטין הקטנה Gil'ad Be'eri, "The Lebanon War" – "Confronting "Little Palestine" in Lebanon"</ref>

The defenders fought fiercely over every alley and house, with civilians who wanted to surrender shot by the fundamentalists. The Israeli advance was slow and was supported by massive air and artillery bombardment. The IDF employed its previous tactics of urging civilians to leave with loudspeakers before attacking an area. It took about eight days for the camp to fall, with the battle culminating in a last stand by the defenders at the camp mosque, which was blown up by the IDF.<ref name="ReferenceC"/>

In an effort to establish air superiority and greater freedom of action, the [[Israeli Air Force]] launched [[Operation Mole Cricket 19]] on 9 June. During the course of the operation, the Israeli Air Force scored a dramatic victory over the Syrians, shooting down 29 Syrian planes and also destroying 17 Syrian anti-aircraft missile batteries, employing [[electronic warfare]] methods to confuse and jam the Syrian radars.<ref name=Gabriel/> The Israelis' only known losses were a single UAV shot down and two fighter jets damaged. Later that night, an Israeli air attack destroyed a Syrian armored brigade moving south from [[Baalbek]], and the IAF attacked and destroyed six more Syrian SAM batteries the following day. The easternmost Israeli force, which had been stationary, resumed its advance forward up the Bekaa Valley.<ref name=Davis/>

In the center, Israeli forces were ambushed by the Syrians as they approached Ain Zhalta, and were pinned down by Syrian forces firing from superior positions. The Israelis were bogged down, and an infantry battalion was sent in by helicopter to reinforce them. The town was only captured after a two-day armored and infantry battle. The battle cost the Israelis 11 killed and 4 tanks, while the Syrians lost approximately 100 killed and 35 tanks. After Ain Zhalta fell, the Israelis advanced to the town of Ain Dara, which overlooked the Beirut-Damascus highway, and captured the heights overlooking the town.<ref name=Gabriel/>

Along the road to Ain Dara, the Israelis encountered Syrian tank and commando units, and found themselves bogged down as the Syrians took advantage of the terrain. The Israelis called in air support, and Israeli attack helicopters that took advantage of ravines to fly in low beneath their targets to gain an element of surprise proved particularly effective against Syrian tanks. After a daylong battle, the Israelis had surrounded Ain Dara and were in a position to strike on the highway.<ref name=Gabriel/>

On 10 June 1982, the Israeli air force mistook a column of IDF [[Nahal Brigade]] forces for a Syrian commando unit. An IAF [[McDonnell Douglas F-4 Phantom II|F-4 Phantom]] attacked the Battalion 931, advancing in open [[Armoured personnel carrier|APC]]s in south-eastern Lebanon with cluster ammunition. The unit suffered 24 fatalities and 108 wounded, with a further 30 soldiers shell-shocked.<ref name="autogenerated1">{{cite news | url= https://www.ynet.co.il/articles/0,7340,L-4238250,00.html | title = שנה למלחמה: תיעוד מלבנון כמו שלא ראיתם | publisher = Ynet | author= Roni Mendel | date= 5 June 2012| access-date= 20 March 2021}}</ref>

In the east, Israeli forces advanced along four main routes towards Joub Jannine, along both sides of the Qaraoun reservoir. The Syrians resisted fiercely. Syrian infantrymen armed with anti-tank weapons staged ambushes against Israeli tanks, and Syrian Gazelle helicopters armed with HOT missiles proved effective against Israeli armor. However, the Israelis managed to capture the valley floor, and the Syrians retreated. The Israelis captured Rachaiya, advanced through Kfar Quoq, and took the outskirts of Yanta. Joub Jannine also fell to the Israelis. The extent of Israeli advances ensured that Syrian reinforcements were blocked from deploying west of the Qaraoun reservoir.<ref name=Gabriel/>

An Israeli armored battalion then probed past Joub Jannine to the town of Sultan Yacoub, and was ambushed by Syrian forces lying in wait. In the [[Battle of Sultan Yacoub]], the Israelis fought fiercely to extricate themselves, and called in reinforcements and artillery fire to cover the withdrawal. After six hours, the Israelis managed to retreat, having lost 10 tanks and 3 armored personnel carriers. In addition, another major air battle erupted in which the Israeli Air Force shot down 25 Syrian jets and 4 helicopters.<ref name=Gabriel/>

[[File:Destroyed MEA aircraft 1982.jpg|thumb|A destroyed [[Boeing 720]] at [[Beirut Airport]], 1982]]
To the west, as IDF troops mopped up remaining resistance in Tyre and Sidon, the Israeli advance on Beirut continued, and Syrian tank and commando units were then deployed south of Beirut to reinforce the PLO. When the Israelis reached the Beirut suburb of Kafr Sill, they met a joint Syrian-PLO force for the first time, and fought a difficult battle to take it. The IDF temporarily halted its advance in the western sector at Kafr Sill.<ref name=Gabriel/>

On 11 June, Israel and Syria announced that they had agreed to a cease-fire at noon, which would not include the PLO. The cease-fire was to come into effect at noon. Just before the cease-fire was to take effect, the Syrians moved a column of T-72 tanks so as to position it against Israeli forces in the valley. Israeli infantry teams armed with [[BGM-71 TOW]] anti-tank missiles ambushed the Syrian column, destroying 11 tanks. Another air battle also occurred, with the Israelis shooting down 18 more Syrian jets.<ref>עפר שלח ויואב לימור, "שבויים בלבנון, האמת על מלחמת לבנון השנייה", הוצאת ידיעות ספרים, 2007, עמוד 327 (Hebrew)<br> [[Ofer Shelah]] and Yoav Limor, "Captives in Lebanon – The Truth about the Second Lebanon War", 2007 – page 327</ref>

The Israeli advance on Beirut pressed forward in the west, reaching [[Khalde]] on 11 June. Six miles south of Beirut, the town was the last PLO position in front of Beirut Airport. The PLO fighters, led by Abdullah Siyam, fought a rearguard action which held up the Israeli advance for six days. Siyam was killed in the fighting.<ref>[[David Hirst (journalist)|Hirst, David]] (2010) ''Beware of Small States. Lebanon, battleground of the Middle East.'' Faber and Faber. {{ISBN|978-0-571-23741-8}} p.141</ref> The Israelis, who stood on the outskirts of Beirut, advanced towards the airport, and engaged in frequent combat with PLO and Syrian units as Israeli warplanes continued to bomb PLO positions in Beirut.<ref name=Gabriel/>

The PLO's situation gradually grew worse as the Israeli advance gained ground, threatening to trap the PLO and a Syrian brigade deployed with them in the city. With the Israelis advancing on the south and the eastern sector of Beirut held by Lebanese Christian forces, the only way out was on the Beirut-Damascus highway, and the Israelis were building up forces at Ain Dara in the eastern sector, which were in a position to strike at the highway and block any PLO attempt to escape.<ref name=Gabriel/>

On 12 June, the Israeli-Syrian cease-fire was extended to the PLO. As the Israeli advance halted, the Israelis turned their attention to the zone they already occupied in southern Lebanon, and began a policy to root out any PLO remnants. Israeli troops began searches for arms caches, and suspected PLO members were systematically rounded up and screened, and taken to a detention camp on the Amoun Heights.<ref name=Gabriel/>

On 13 June, less than twelve hours after the Israeli-PLO ceasefire had gone into effect, it fell apart, and heavy fighting erupted around Khalde. As the fighting raged, an IDF armored unit struck northeast, attempting to bypass Khalde and advance on [[Baabda]], which overlooked the airport and could be used as another staging point to cut the Beirut-Damascus highway. By 14 June, Syrian forces were being deployed to Khalde. Syrian units in Beirut and three commando battalions armed with anti-tank weaponry took up defensive positions southwest of the airport to block any Israeli attempt to capture it.<ref name=Gabriel/>

The Israelis attempted to flank these defenses by moving off the road past Shuweifat, up a narrow, steep, and winding road towards Baabda, but were ambushed by a Syrian commando battalion. The Syrians attacked Israeli armor with rocket-propelled grenades and anti-tank missiles at close range. Israeli infantry dismounted and engaged the Syrians. Fierce fighting took place, with the Israelis calling in artillery at very close range to themselves. The Israelis advanced relentlessly, and after fourteen hours of fierce combat that raged up through Ain Aanoub and Souq el-Gharb, they broke through the Syrian positions and entered Baabda.<ref name=Gabriel/>

The IDF then immediately sent reinforcements to the column in Baabda to enable it to carry out further operations. From Baabda, the Israeli force split into three columns, one of which struck across the highway and entered the mountainous area to the northeast, one swung west and took up positions in the steep hills west of Beirut, and one turned toward Kahale, which was further down the highway. To the south, the IDF drove PLO forces out of Shuweifat, but no major battles occurred. The Israelis had now cut the Beirut-Damascus highway, cutting off all PLO and Syrian forces in the city.<ref name=Gabriel/>

On 15 June, Israel offered free passage to all Syrian forces in Beirut if they would withdraw from the city to the Bekaa Valley in the east, but the Syrian government refused and sent further reinforcements to its units along the highway and north of the highway near Beirut. The Israelis faced Syrian strongpoints reinforced by armor and artillery all along the highway. However, between 16 June and 22 June, the fighting was limited to artillery duels and minor firefights between Israeli and Syrian forces, as both sides reinforced their troops.<ref name=Gabriel/>

===Battles of the Beirut–Damascus highway===
[[File:Romach4.5Leb91982.jpg|thumb|250px|The [[Israeli Navy]] missile boat INS ''Romach'' off the coast of Lebanon, August 1982]]
[[File:Syrian T-62 Tank Destroyed in Lebanon by the IDF, 1982.jpg|thumb|A Syrian T-62 destroyed somewhere in Lebanon by the IDF, 1982]]

As the two sides prepared for combat, the IDF deemed capturing the Beirut–Damascus highway to be of critical importance. With the Syrians in control of most of the highway, occupying the towns along the highway and to the north, the Israelis could not prevent Syrian and PLO forces from escaping or launch further operations into Beirut without risking a Syrian flanking attack, and the Israelis also wanted a clear transit to Christian-held eastern Beirut.<ref name=Gabriel/>

On 22 June, the IDF launched an operation to capture the highway. The Israeli Air Force flew highly effective missions against Syrian positions and vehicles, with Israeli pilots reporting 130 enemy vehicles destroyed in a single air attack alone. Israeli long-range artillery targeted Syrian strongpoints to the north. Israeli armored forces with artillery support attacked Syrian positions along the highway, with the objective of driving them from the highway all the way back to the edge of the Bekaa Valley.<ref name=Gabriel/>

With air and artillery support mostly limited to targets north of the highway, the fighting was fierce, especially to the south. By the end of the day, Israel accepted an American request for a cease-fire and halted its offensive, but the cease-fire collapsed the following day and the fighting resumed. As the Israelis pushed forward, and managed to trap a large Syrian force, Syrian defenses began to collapse. For the first time in the war, Syrian troops began to break and run. At Aley, which was defended by Iranian volunteers sent to fight for the PLO, the Israelis encountered fierce resistance.<ref name=Gabriel/>

The Israelis managed to push to the eastern Bekaa Valley, and on 24 June, began to shell the outskirts of Chtaura, which was at the northern mouth of the Bekaa Valley and served as headquarters of all Syrian forces there. It was also the last major obstacle before the Syrian border, as well as Syria's capital [[Damascus]] itself. The Israelis managed to reach the mountain pass near the village of Dahr el-Baidar, which was the last obstacle before Cthaura. The Syrians fought fiercely to hold the pass, and the Israeli advance halted, with the Israelis holding their ground and harassing the Syrians with artillery fire.<ref name=Gabriel/>

By 25 June, with the remaining Syrian positions on and north of the highway no longer tenable, the Syrians withdrew. The Israelis allowed the withdrawal to occur but conducted artillery harassment and continued to shell the outskirts of Chtaura. The Syrians attempted to deploy a SAM battery in the Bekaa Valley at midnight, but Israeli intelligence detected this, and the battery was destroyed in an Israeli air attack. By the end of the day, a cease-fire was announced. The Israelis stopped at their present positions.<ref name=Gabriel/>

===Siege of Beirut===
{{Main|Siege of Beirut|PLO withdrawal from Lebanon}}
[[File:Lebanon PLO ammunition stadium 1982.jpg|thumb|The stadium used as an ammunition supply site for the PLO, after Israeli airstrikes in 1982]]
The [[Siege of Beirut]] had begun on 14 June 1982: Israeli forces had completed the encirclement of the city the previous day. The Israelis chose to keep the city under siege rather than forcibly capture it, as they were unwilling to accept the heavy casualties that the heavy street fighting required to capture the city would have resulted in. Israeli forces bombarded targets within Beirut from land, sea, and air, and attempted to assassinate Palestinian leaders through airstrikes. The [[Israeli Navy]] maintained a blockade on the port of Beirut with a ring of missile boats and patrol boats supported by submarines.<ref>{{Cite book|url=https://books.google.com/books?id=yplvCwAAQBAJ&pg=PT250|title = Block by Block: The Challenges of Urban Operations &#91;Illustrated Edition&#93;|isbn = 978-1-78289-778-1|last1 = Robertson|first1 = William G.|date = 15 August 2014| publisher=Pickle Partners }}</ref>

The siege lasted until August, when an agreement was reached in August 1982. More than 14,000 PLO combatants evacuated the country in August and September, supervised by the [[Multinational Force in Lebanon]], an international peacekeeping force with troops from the United States, United Kingdom, France, and Italy. About 6,500 Fatah fighters relocated from Beirut to Jordan, Syria, [[Iraq]], Sudan, both [[Yemen Arab Republic|North]] and [[South Yemen]], Greece, and Tunisia—the latter of which became the new PLO headquarters.<ref>{{cite news| url=https://news.bbc.co.uk/onthisday/hi/dates/stories/august/30/newsid_2536000/2536441.stm |work=BBC News | title=1982: PLO leader forced from Beirut | date=30 August 1982 | access-date=20 April 2010}}</ref>

Israel withdrew its forces from west Beirut on 29 September, officially ending Operation Peace for Galilee. [[Philip Habib]], [[Ronald Reagan]]'s envoy to Lebanon, provided an understanding (i.e., assurance) to the PLO that the Palestinian civilians in the refugee camps would not be harmed. However, increased hostilities against the US resulted in the April [[1983 United States Embassy bombing]]. In response, the US brokered the [[May 17 Agreement]], in an attempt to stall hostilities between Israel and Lebanon. However, this agreement eventually failed to take shape, and hostilities continued. These attacks were attributed to Iranian-backed Islamist guerrillas. Following this incident, international peacekeeping forces were withdrawn from Lebanon.

==Further conflict and Israeli withdrawal==
{{unreferenced section|date=June 2018}}
Following the departure of the PLO and international peacekeepers, Islamist militants began launching guerrilla attacks against Israeli forces. Suicide bombings were a particularly popular tactic, the most serious being the [[Tyre headquarters bombings]], which twice devastated IDF headquarters in Tyre, and killed 103 Israeli soldiers, border policemen, and [[Shin Bet]] agents, as well as 49–56 Lebanese. The IDF subsequently withdrew from the Shouf Mountains but continued occupying Lebanon south of the [[Awali River]].

An increased number of Islamic militias began operating in South Lebanon, launching guerrilla attacks on Israeli positions and on pro-Israeli Lebanese militias.  Israeli forces often responded with increased security measures and airstrikes on militant positions, and casualties on all sides steadily climbed. In a vacuum left with eradication of PLO, the disorganized Islamic militants in South Lebanon began to consolidate. The emerging [[Hezbollah]], soon to become the preeminent Islamic militia, evolved during this period. However, scholars disagree as to when Hezbollah came to be regarded as a distinct entity. Over time, a number of Shi'a group members were slowly assimilated into the organization, such as Islamic Jihad members, Organization of the Oppressed on Earth, and the Revolutionary Justice Organization.

In February 1985, Israel withdrew from [[Sidon]] and turned it over to the Lebanese Army, but faced attacks: 15 Israelis were killed and 105 wounded during the withdrawal. Dozens of pro-Israeli Lebanese militiamen were also assassinated. From mid-February to mid-March, the Israelis lost 18 dead and 35 wounded. On 11 March, Israeli forces raided the town of [[Zrariyah]], killing 40 Amal fighters and capturing a large stock of arms. On 9 April, a Shiite girl drove a car bomb into an IDF convoy, and the following day, a soldier was killed by a land mine. During that same period, Israeli forces killed 80 Lebanese guerrillas in five weeks. Another 1,800 Shi'as were taken as prisoners.

Israel withdrew from the Bekaa valley on 24 April, and from [[Tyre, Lebanon|Tyre]] on the 29th. In June 1985, the IDF unilaterally withdrew to a security zone in southern Lebanon along with its principal Lebanese ally, the [[South Lebanon Army]], completing its troop withdrawal to the security zone on 5 June.<ref>Gibler, Douglas M: ''International Conflicts, 1816–2010: Militarized Interstate Dispute Narratives'', p. 695</ref>

Despite this being considered the end of the war, conflict would continue. Hezbollah continued to fight the IDF and SLA in the [[South Lebanon conflict (1985–2000)|South Lebanon conflict]] until Israel's final withdrawal from Lebanon in 2000.

==Military analysis==
[[File:Masada cobra.jpg|thumb|right|[[Israeli Air Force|IAF]] [[AH-1 Cobra|Cobra]] gunships on military exercise. These attack helicopters were successfully employed against Syrian [[Armored fighting vehicles|AFVs]] during the conflict.]]
During the course of combat operations, the [[Israeli Air Force]] conducted successful ground attack missions against Syrian and PLO targets, with Israeli attack helicopters inflicting heavy losses on Syrian armor. Israeli jets shot down between 82<ref name=Rabinovichp510>[[#refRabinovich2004|Rabinovich, p.&nbsp;510]]</ref> and 86 Syrian aircraft in aerial combat, without losses.<ref name="Herzog pp. 347-348">[[#refHerzog2005|Herzog & Gazit, pp.&nbsp;347–348]]</ref><ref name=Walkerp162>[[#refWalker1983|Walker, pp.&nbsp;162–63]]</ref> A single Israeli A-4 Skyhawk and two helicopters were shot down by anti-aircraft fire and SAM missiles.<ref name=Rabinovichp510/><ref name="Herzog pp. 347-348"/><ref name=Walkerp162/> This was the largest aerial combat battle of the jet age with over 150 fighters from both sides engaged. Syrian claims of aerial victories were met with skepticism even from their Soviet allies.<ref name="hurley">{{Cite journal
 |issue       = Winter 1989
 |last        = Hurley
 |first       = Matthew M.
 |title       = The Bekaa Valley Air Battle
 |journal     = Airpower Journal
 |access-date  = 10 September 2008
 |url         = http://www.airpower.maxwell.af.mil/airchronicles/apj/apj89/win89/hurley.html
 |archive-url  = https://web.archive.org/web/20080923153108/http://www.airpower.maxwell.af.mil/airchronicles/apj/apj89/win89/hurley.html
 |archive-date = 23 September 2008
 |url-status     = dead}}</ref>

The Soviets were so shaken by the staggering losses sustained by their allies that they dispatched the deputy head of their air defense force to Syria to examine how the Israelis had been so dominant.<ref name="Rabinovich p. 510-11"/> The Israeli Air Force also performed ground attacks, notably destroying the majority of Syrian anti-aircraft batteries stationed in Lebanon. [[AH-1 Cobra]] helicopter gunships were employed against Syrian armour and fortifications. IAF Cobras destroyed dozens of Syrian [[Armored fighting vehicle]]s, including some of the modern Soviet [[T-72]] [[main battle tank]]s.<ref name="Herzog pp. 349">[[#refHerzog2005|Herzog & Gazit, pp.&nbsp;349]]</ref>

The war also witnessed the Israeli [[Merkava]] [[main battle tank|MBT]] make its first combat debut, facing Syrian [[T-72]] tanks. During these engagements, the Israelis claimed that the Merkava proved superior to the T-72, destroying a number of them without sustaining a single loss to T-72 fire.<ref name="Herzog pp. 349"/>

Former IAF commander, [[David Ivri]] would later recall a meeting with a high-ranking member of the [[Warsaw Pact]], in which he was told that the dominance of Israeli and U.S. technology and tactics during the war was one of the factors that changed Soviet mind-set, leading to [[Glasnost]] and ultimately, the fall of the Soviet Union.<ref name="Rabinovich p. 510-11">[[#refRabinovich2004|Rabinovich, p.&nbsp;510–511]]</ref><ref name="The Bekaa Valley War">{{cite magazine|url=https://www.airandspaceforces.com/article/0602bekaa/|title=The Bekaa Valley War|last=Grant|first=Rebecca|date=June 2002|access-date=8 November 2010|magazine=[[Air & Space Forces Magazine]]|volume=85|issue=6|archive-url=https://web.archive.org/web/20250929114628/https://www.airandspaceforces.com/article/0602bekaa/|archive-date=29 September 2025|url-status=live}}</ref> However, defense analysts and the Syrians claimed the opposite, saying that their T-72s were highly effective and that none were lost.<ref name=Ilyin-Nikolski>{{cite journal |last1=Ilyin |first1=Vladimir |last2=Nikolski| first2=Mikhail |title=Sovremennye tanki v boiu |trans-title=Modern Tanks in Battle |journal=Tekhnika i vooruzhenie [Machinery and Armament] |year=1997 |issue=1 |language=ru}}</ref>

The T-72 tanks of the Syrian 2nd Armored Division were credited with not only halting the advance of an Israeli armored brigade on Rashaya on 10 June but pushing them back. They tallied the destruction of 33 tanks and the capture of an [[M60 Patton]], which was sent to Damascus and thence transported to Moscow. Syrian tanks saw similar success against Israeli armor in Ain Zhalta and Sultan Yacoub in fighting on 8–10 June, stemming their advance to capture the Beirut-Damascus highway.<ref>[[#refSeale1989|Seale, pp.&nbsp;382–83.]]</ref>

==Final accords==
{{Main|Sabra and Shatila massacre}}
On 14 September 1982, [[Bachir Gemayel]], the newly elected President of Lebanon, was assassinated by [[Habib Tanious Shartouni|Habib Shartouni]] of the [[Syrian Social Nationalist Party in Lebanon|Syrian Social Nationalist Party]].<ref>[[#refSeale1989|Seale, p.&nbsp;391]]</ref> Israeli forces occupied West Beirut the next day. At that time, the Lebanese Christian Militia, also known as the [[Kataeb Party|Phalangists]], were allied with Israel.<ref name="bbcfb">[https://news.bbc.co.uk/2/hi/middle_east/1779713.stm "Flashback: Sabra and Shatila massacres"], ''BBC News Online'' (London), 24 January 2002.</ref> The Israeli command authorized the entrance of a force of approximately 150 Phalangist fighters' into Sabra and the Shatila refugee camp. Shatila had previously been one of the PLO's three main training camps for foreign militants and the main training camp for European militants;<ref>{{cite book|last=Becker|first=Jillian|title=PLO: The Rise and Fall of the Palestine Liberation Organization|publisher=AuthorHouse|year=1984|isbn=978-1-4918-4435-9|pages=239, 356–357}}</ref> the Israelis maintained that 2,000 to 3,000 terrorists remained in the camps, but were unwilling to risk the lives of more of their soldiers after the Lebanese army repeatedly refused to "clear them out."<ref>{{cite book|last=Becker|first=Jillian|title=PLO: The Rise and Fall of the Palestine Liberation Organization|publisher=AuthorHouse|year=1984|isbn=978-1-4918-4435-9|page=264}}</ref>

Between 460<ref name="Lebanon War 282"/><ref name="Becker 265">{{cite book|last=Becker|first=Jillian|title=PLO: The Rise and Fall of the Palestine Liberation Organization|publisher=AuthorHouse|year=1984|isbn=978-1-4918-4435-9|page=265}}</ref> and 3,500 civilians, mostly Palestinians and Lebanese Shiites [[Sabra and Shatila massacre|were massacred]] by the Phalangists, who themselves suffered only two casualties. The Lebanese army's chief prosecutor investigated the killings and counted 460 dead, Israeli intelligence estimated 700–800 dead, and the Palestinian Red Crescent claimed 2,000 dead. 1,200 death certificates were issued to anyone who produced three witnesses claiming a family member disappeared during the time of the massacre.<ref name="Lebanon War 282">{{cite book|last1=Schiff|first1=Ze'ev|last2=Ya'ari|first2=Ehud|title=Israel's Lebanon War|publisher=Simon and Schuster|year=1985|isbn=978-0-671-60216-1|page=[https://archive.org/details/israelslebanonwa00zeev/page/282 282]|url=https://archive.org/details/israelslebanonwa00zeev/page/282}}</ref> Nearly all of the victims were men.<ref name="Lebanon War 282"/><ref name="Becker 265"/>

Israeli troops surrounded the camps with tanks and checkpoints, monitoring entrances and exits.<ref name="bbcfb"/> Israeli investigation by the [[Kahan Commission]] of Inquiry found that [[Ariel Sharon]] bore "personal responsibility" for failing to prevent the massacre, and for failing to act once he learned of the massacre. The Commission recommended that he be removed as Defense Minister and that he never hold a position in any future Israeli government. Sharon initially ignored the call to resign, but after the death of an anti-war protester, resigned as Israel's Defense Minister, remaining in Begin's cabinet as a Minister without portfolio.

==Opposing forces==
The 1982 Lebanon War was at first a conventional war up to and including when the PLO were expelled from Beirut.<ref name="armlab">''Armies in Lebanon 1982–84'', Samuel Katz and Lee E. Russell, Osprey Men-At-Arms series No. 165, 1985</ref> The war was limited by both Israel and Syria because they were determined to isolate the fighting, not allowing it to turn into an all-out war.<ref name="armlab" /><ref>{{cite web|url=http://lcweb2.loc.gov/cgi-bin/query2/r?frd%2Fcstdy%3A%40field%28DOCID%2Blb0161%29|title=lb0161|archive-url=https://web.archive.org/web/20050228055759/http://lcweb2.loc.gov/cgi-bin/query2/r?frd%2Fcstdy%3A%40field%28DOCID%2Blb0161%29|archive-date=28 February 2005}}</ref> Israeli forces were numerically superior, allowing Israel to maintain both the initiative and an element of surprise. The Syrian Army fielded six divisions and 500 aircraft,<ref name="armlab" /> while Israel used five divisions and two brigades, plus 600 aircraft.<ref name="armlab" /><ref>{{cite web|url=http://lcweb2.loc.gov/cgi-bin/query/r?frd%2Fcstdy%3A%40field%28DOCID%2Blb0163%29|title=lb0163|archive-url=https://web.archive.org/web/20041029055052/http://lcweb2.loc.gov/cgi-bin/query/r?frd%2Fcstdy%3A%40field%28DOCID%2Blb0163%29|archive-date=29 October 2004}}</ref> There were numerous other factions involved.<ref name="armlab" />

===Israel and allies===
====Israel====
[[File:Merkava-1-latrun-1.jpg|thumb|The Israeli [[Merkava]] Mark I tank was used throughout the First Lebanon War]]
IDF forces totalled 78,000 men, 1,240 tanks and 1,500 armoured personnel carriers. IDF troops were deployed in five divisions and two reinforced brigade-size units.<ref name=":0">{{cite encyclopedia|title=Lebanon: a country study|publisher=[[Federal Research Division]], [[Library of Congress]]|location=Washington, D.C.|url=https://www.loc.gov/item/88600488/|last=Mason|first=Robert Scott|date=1989|editor-last=Collelo|editor-first=Thomas|pages=202, 208, 239, 243|isbn=|oclc=44356055 |entry=National Security}} {{PD-notice}}</ref> The IDF maintained additional forces on the Golan Heights as an area reserve.<ref name="armlab" /> IDF forces were divided into three main axis of advances called sectors:<ref name="armlab" /><ref name="ReferenceA">Israeli Elite Units since 1948, Samuel Katz, Osprey Elite series 18,</ref>
* Coastal Sector, (from [[Rosh HaNikra Crossing|Rosh Hanikra]] north to [[Tyre, Lebanon|Tyre]], [[Sidon]], [[Damour]] and Beirut.) – Forces included [[91st Division (IDF)|Division 91]] with three brigades including the 211th and the [[Golani Brigade]]. The [[Paratroopers Brigade|35 Paratroop Brigade]] and the [[Nahal|Na'hal]] 50th Paratroop Battalion were attached to the division as needed. The [[Israeli Navy]] provided naval interdiction, shore gunfire support and landed a mixed brigade from [[96th Division (IDF)|Division 96]] at the mouth of the [[Awali River]] near Sidon. [[Shayetet 13|Israeli Naval commandos]] had landed there previously.<ref name="armlab" /><ref name="ReferenceA"/>
* Central Sector (from [[Beaufort Castle, Lebanon|Beaufort Castle]] to [[Nabatiyeh]]) – [[Jezzine]] was the main objective and then on to Sidon to link up with the coastal forces. IDF forces included the [[36th Division (IDF)|Divisions 36]] and [[162nd Division (IDF)|162]].<ref name="armlab" />
* Eastern Sector (from [[Rachaya Al Foukhar|Rachaiya]] and [[Hasbaya|Hasbaiya]] through the Bekaa Valley around [[Lake Qaraoun]]) – IDF forces included Divisions 90 and 252, the Vardi Force and the Special Maneuver Force which was composed of two brigades of Infantry and paratroops who were trained for anti-tank operations. These forces were primarily used to contain the Syrians with orders not to initiate combat against them.<ref name="armlab" /><ref name="ReferenceA"/>

====Lebanese Front====
* [[Lebanese Front]] – a coalition of mainly Christian parties formed in 1976. Combined [[Lebanese Forces (militia)|Lebanese Front forces]] totalled about 30,000 fighting men and women, around 17,000 of which were regulars. The Lebanese Forces were officially aligned with Israel in the war, but took a small role in the fighting.<ref name=":0" /> These troops were mostly from the [[Kataeb Party|Kataeb party]] but also included men from smaller right-wing militias, including [[Saad Haddad]]'s [[Army of Free Lebanon]],<ref name="Shahid">{{cite journal|last=Shahid|first=Leila|title=The Sabra and Shatila Massacres: Eye-Witness Reports|journal=Journal of Palestine Studies|volume=32|issue=1|date=Autumn 2002|pages=36–58|url=http://www.palestine-studies.org/files/pdf/jps/4558.pdf |doi=10.1525/jps.2002.32.1.36|url-status=dead|archive-url=https://web.archive.org/web/20130522085946/http://www.palestine-studies.org/files/pdf/jps/4558.pdf |archive-date=22 May 2013 | issn=0377-919X }}</ref> [[al-Tanzim]] and [[Guardians of the Cedars]].<ref>{{cite web|url=http://milinme.wordpress.com/category/v-200-chaimite |title=– An ex-ISF V-200 Chaimite employed by the Guardians of the Cedar pictured at Houche-el-Oumara during the Battle for Zahle, April–June 1981 |publisher=Milinme.wordpress.com |access-date=29 February 2012}}</ref><ref>{{cite web |url=http://www.alsminiature.com/m.34.gardien.cedre.htm |title=– GoC M34 gun-truck with ZU-23-2 AA autocannon, c.1976 |publisher=Alsminiature.com |access-date=29 February 2012 |archive-url=https://web.archive.org/web/20121102082444/http://www.alsminiature.com/m.34.gardien.cedre.htm |archive-date=2 November 2012 |url-status=dead }}</ref>
* [[South Lebanon Army]] – founded in 1979, the SLA acted as Israel's proxy in [[Southern Lebanon]] and fought the PLO and [[Hezbollah]]. The SLA was composed of 50% Christians, 30% Shiites and 20% Druze and Sunni personnel

===Syria, PLO and allies===
====Syrian Armed Forces====
[[File:Syrian team with Milan.jpg|thumb|120px|Syrian anti-tank teams deployed French-made [[MILAN|Milan ATGMs]] during the war in Lebanon, 1982]]
[[File:Syrian SAM.jpg|right|thumb|300px|Part of a Syrian [[SA-6]] site built near the Beirut-Damascus highway, and overlooking the [[Bekaa Valley]], in early 1982]]
The [[Syrian Army]] had over 30,000 troops deployed in Lebanon in June 1982.<ref name="armlab"/><ref name="lcweb2.loc.gov">{{cite web|title=APPENDIX B – Lebanon, APPENDIX B – Lebanon|url=http://lcweb2.loc.gov/frd/cs/lebanon/lb_appnb.html|access-date=29 February 2012|publisher=Lcweb2.loc.gov}}</ref>
The largest concentration was in the Bekaa Valley where the [[1st Armoured Division (Syria)|1st Armoured Division]] consisting of the 58th Mechanised and the 76th and 91st Armoured Brigades. The 62nd Independent Armored Brigade and ten commando battalions were also assigned to the division. Syria deployed around 400 tanks in the Bekaa Valley. 19 surface-to-air missile batteries, including SA6's, were also deployed in the Bekaa Valley.<ref name="armlab" />

In Beirut and the Shouf Mountains were the 85th Infantry Brigade, the [[Palestine Liberation Army|PLA]], [[As-Sa'iqa]] and 20 commando battalions. Syria deployed around 200 tanks in this area. Their primary mission was to protect the Beirut-Damascus Highway, which was Syria's primary supply line in the region.<ref name="armlab" />

====Palestinians====
=====PLO=====
Palestinian Liberation Organization forces continued to grow in Lebanon, with full-time military personnel numbering around 15,000 [[Palestinian fedayeen|fedayeen]], although only 6,000 of these&nbsp;– including 4,500 regulars&nbsp;– deployed in the south. They were armed with 80 aging tanks, many of them no longer mobile, and with 100 to 200 pieces of artillery. According to Israeli analysts [[Ze'ev Schiff|Schiff]] and [[Ehud Ya'ari|Ya'ari]] (1984), the PLO more than quadrupled its artillery from 80 cannons and rocket launchers in July 1981 to 250 in June 1982.<ref>[[#refSchiff1984|Schiff & Ya'ari, pp.&nbsp;83–84]]</ref> The same authors also refer to Israeli intelligence estimates of the number of PLO fighters in southern Lebanon of 6,000 as

<blockquote>divided into three concentrations; about 1,500 south of the Litani River in the so-called [[Iron Triangle (Lebanon)|Iron Triangle]] (between the villages of Kana, Dir Amas, and Juya), [[Tyre (Lebanon)|Tyre]], and its surrounding refugee camps; another 2,500 of the Kastel Brigade in three districts between the Litani and a line running from Sidon to northeast of Nabatiye; and a third large concentration of about 1,500–2,000 men of the Karameh Brigade in the east, on the slopes of Mount Hermon.<ref>[[#refSchiff1984|Schiff & Ya'ari, pp.&nbsp;134–135]]</ref></blockquote>

PLO primary forces consisted of three conventional brigades&nbsp;– each of 2,000 to 2,500 men&nbsp;– and of seven artillery battalions.<ref>{{cite web|url= http://lcweb2.loc.gov/cgi-bin/query/r?frd/cstdy:@field%28DOCID+lb0161%29 |title= Lebanon. The Two-Week War. Section 1 of 1; Data as of December 1987 Library of Congress Country Studies |publisher= Lcweb2.loc.gov |date= 3 June 1982 |access-date= 29 February 2012}}</ref> Each brigade comprised contingents of the many PLO factions. The Yarmouk Brigade was stationed along the coastal strip while the Kastel Brigade was in the south. The Karameh Brigade was stationed on the eastern slopes of [[Mount Hermon]] in the area called [[South Lebanon conflict (1985–2000)|Fatahland]].

The PLO had around 15,000 to 18,000 fighters deployed as follows:<ref name="armlab"/>
* 6,000 in the Beirut, Ba'abda and Damour area
* 1,500 in Sidon
* 1,000 between Sidon and Tyre
* 1,500 in Tyre
* 1,000 deployed from Nabatiyeh to Beaufort Castle
* 2,000 in [[Fatahland]]
* around 1,000 in the UNIFIL Zone

Heavy weapons consisted of about 60 [[T-34]], [[T-54/55|T-54 and T-55 tanks]] (most of them dug in as [[bunker#Pillbox|pillboxes]]), up to 250 130mm and 155&nbsp;mm artillery, many [[BM21]] [[Katyusha rocket launcher|Katyusha]] multiple-rocket launchers plus heavy mortars.<ref>
[[#refSayigh1999|Sayigh, p.&nbsp;524]]</ref>

=====Non-PLO Palestinian groups=====
Palestinian groups of the radical [[Rejectionist Front]] joined forces with the mainstream PLO.<ref name=":0" />

These groups included:
* [[Arab Liberation Front]] (ALF), a Palestinian group affiliated with [[Ba'ath Party (Iraqi-dominated faction)|Iraqi-led Ba'ath Party]] with an estimated 2,500 fighters in total
* [[As-Sa'iqa]] ("Thunderbolt"), a Palestinian group affiliated with [[Ba'ath Party (Syrian-dominated faction)|Syrian-led Ba'ath Party]] with an estimated 4,000 fighters in total
* [[Democratic Front for the Liberation of Palestine]] (DFLP) with an estimated 2,500 fighters in total
* [[Abu Nidal Organization|Fatah-Revolutionary Council]]
* [[Popular Front for the Liberation of Palestine]] (PFLP) with an estimated 2,000 fighters in total
* [[Popular Front for the Liberation of Palestine - General Command]] (PFLP-GC) with an estimated 2,000 fighters in total
* [[Palestine Liberation Army]] (PLA) with an estimated 5,000 fighters in total
* [[Palestinian Popular Struggle Front]] (PPSF) with an estimated 2,200 fighters in total

====Left wing====
Left wing parties joined forces with the PLO in what came to be known as the "joint forces".
* [[Al-Mourabitoun]] – a secular [[Nasserism|Nasserist]] party, with a militia numbering around 3,500 fighters who were known for wearing red painted [[SSh-68|Soviet helmets]] with "al-Mourabitoun" painted on front in [[Arabic]] script.<ref name="armlab"/> They fought alongside the PLO and the joint forces in the Beirut area until the cease fire after which they acquired much cast-off PLO equipment such as tanks and rocket launchers. They were supported largely by Libya and Syria.<ref name="armlab"/>
* [[Lebanese Communist Party]] – Lebanon's main Communist party headed by [[George Hawi]], members of the party enlisted in the "joint forces" during the initial invasion.
* [[Communist Action Organization in Lebanon]] – a Communist party headed by [[Mohsen Ibrahim]] mainly active in [[Southern Lebanon]], the organization conducted guerilla operations against Israeli garrisons following the invasion.
* The [[Kurdistan Workers' Party]] at the time had training camps in Lebanon, where they received support from the Syrians and the PLO. During the Israeli invasion all PKK units were ordered to fight the Israeli forces. A total of 11 PKK fighters died in the conflict.<ref name="PKK1"/><ref name="PKK2"/><ref name="PKK3"/>
* [[Arab Socialist Action Party – Lebanon|Arab Socialist Action Party]] – a Communist party headed by Hussein Hamdan mainly active in Southern Lebanon, the organization conducted guerilla operations against Israeli garrisons following the invasion.
* The [[Lebanese National Resistance Front]] – an alliance formed in September 16, 1982 by George Hawi of the LCP, Mohsen Ibrahim of the OCAL and Hussein Hamdan of the ASAP against the Israeli occupation, its forces totalled about 30,000 fighting men and women and was the successor of the [[Lebanese National Movement]].

====Muslim militias====
Muslim forces were mostly [[Shiite]] organizations which joined forces with the more significant PLO during the initial invasion, but operated independently towards the end of 1982:

* [[Amal Movement]] – Shia movement. Amal's fragmented nature was corroborated by the difference decisions in the [[Southern Lebanon]] and Beirut. The alienation by Palestinian and Leftist factions caused Amal fighters in the south to assume a neutral position and watch as Israeli tanks rolled by. This was contrasted at Ouzai, [[Ghobeiry]] and [[Chyah]], where Amal fighters mounted some of the most spirited and aggressive defensive actions against the invading forces.<ref name="Norton2">{{cite book |last1=Norton |first1=Augustus R. |title=Hezbollah A Short History |date=2007 |publisher=Princeton University Press |isbn=978-0-691-13124-5}}</ref> During the initial invasion, the PLO and Amal were effectively the only major forces resisting the Israeli thrust northwards, temporarily halting them at [[Khalde#Battle of Khaldeh|Khaldeh]] for 6 days.<ref name="auto">{{cite book |last1=Fisk |first1=Robert |title=Pity the Nation: Lebanon at War |date=2001 |publisher=Oxford University Press |isbn=978-0-19-280130-2 |url=https://books.google.com/books?id=VrXpeELOUNsC}}</ref> A [[no man's land]] was marked at the [[Beirut–Rafic Hariri International Airport|Beirut Airport]], where hundreds of Palestinian and Lebanese Shia militants were killed defending the airport.<ref name="auto"/><ref name=":0" />
* Islamic Students Union – an Islamic group which later formed the core of [[Hezbollah]], its members took part in battles of [[Khalde]], the airport and the [[National Museum of Beirut|Museum front]] in June–September 1982.<ref name="auto"/> [[Mustafa Badreddine]] was part of the group. 
* [[Islamic Revolutionary Guard Corps|Pasdaran]] – In July 1982 Iran dispatched an expeditionary force of [[Revolutionary Guards]] to Lebanon, ostensibly to fight the Israeli invaders.<ref name=":0" /> The approximately 1,500 Pasdaran established their headquarters in the Syrian-controlled [[Beqaa Valley]] where they conducted guerrilla training and disbursed military material and money for the newly-formed Islamist groups including [[Hezbollah]].<ref name=":0" />
* [[Islamic Amal]] – [[Hussein al-Musawi]], a former Amal lieutenant, split from Amal and set up his own faction. Musawi entered into an alliance with the Revolutionary Guard and received training and money from them, as Islamic Amal quickly grew to around 1,000 fighters.<ref name=":0" />
* [[Hezbollah]] – a Shia resistance faction which formed following the initial invasion in 1982, and set on fighting Israeli presence and western influence in Lebanon. The group substantially swelled by 1984 and claimed responsibility for most of the operations conducted against Israeli and SLA forces between 1984 and 2000.<ref>{{cite book |last1=Bergman |first1=Ronen |title=Rise and Kill First: The Secret History of Israel's Targeted Assassinations |date=2018 |publisher=Random House Publishing Group |isbn=978-0-679-60468-6 |url=https://books.google.com/books?id=3UXKDQAAQBAJ}}</ref>
* Other Shia groups included the [[Husayn ibn Ali|Imam Hussein]] [[Fedayeen]], [[Islamic Dawa Party in Lebanon]], and the notorious [[Islamic Jihad Organization]] reportedly headed by [[Imad Mughniyyah]], which likely served as an early alias of Hezbollah.<ref name=":0" />

===UNIFIL===
On 19 March 1978, the [[United Nations Interim Force in Lebanon]], or UNIFIL, was created by the United Nations, with the adoption of the [[United Nations Security Council Resolution 425]] and the [[United Nations Security Council Resolution 426]], to confirm Israeli withdrawal from Lebanon which Israel had [[1978 South Lebanon conflict|invaded]] five days prior, restore international peace and security, and help the Government of Lebanon restore its effective authority in the area. The first UNIFIL troops were deployed in the area on 23 March 1978. These troops were reassigned from other UN peacekeeping operations in the area, namely the [[United Nations Emergency Force]] and the [[United Nations Disengagement Observer Force]] Zone. During the 1982 Lebanon War, UN positions were overrun, primarily by the South Lebanon Army forces under Saad Haddad.<ref name="UNsup6">{{cite web |url=http://legal.un.org/repertory/art98/english/rep_supp6_vol6-art98_e.pdf|archive-url=https://web.archive.org/web/20131019222939/http://legal.un.org/repertory/art98/english/rep_supp6_vol6-art98_e.pdf|url-status=dead|archive-date=19 October 2013|title=Extracts relating to Article 98 of the Charter of the United Nations: Supplement No 6 (1979–1984)|access-date =6 August 2006|work=Repertory of Practice of United Nations Organs|publisher=United Nations|pages=§185–§199}}</ref>

==Outcome of the war==

===Casualties===
{{Main|Israeli casualties of war|Palestinian casualties of war}}

====Lebanese, Palestinian, and Syrian casualties====
[[File:Syrian Tank burning in Tzuk Track.jpg|thumb|A Syrian tank burning on the road outside Jezzine]]
Estimates of numbers of the casualties in the conflict vary widely.<ref name="Tucker2010">{{cite book|author=Spencer C. Tucker|title=The Encyclopedia of Middle East Wars: The United States in the Persian Gulf, Afghanistan, and Iraq Conflicts &#91;5 volumes&#93;: The United States in the Persian Gulf, Afghanistan, and Iraq Conflicts|url=https://books.google.com/books?id=U05OvsOPeKMC|volume=2|date=8 October 2010|publisher=ABC-CLIO|isbn=978-1-85109-948-1|page=732}}</ref>

By the end of the first week, 14 June 1982, [[International Red Cross]] and Lebanese police figures said that 9,583 had died and 16,608 injured. By the end of the second week, they said up to 14,000 people died and 20,000 were injured, mostly civilians.<ref name="Fisk">[[#reffisk2001|Fisk, pp.&nbsp;255–257]]</ref>

During the [[Siege of Beirut]], by late August 1982, Lebanese sources put the death toll in Beirut at 6,776. This figure included victims of the 4 June 1982, bombing, which occurred two days before the operation officially started. Lebanese police and international doctors serving in Beirut put the number of civilian casualties at about 80%.<ref name="Dunigan2011">{{cite book|author=Molly Dunigan|title=Victory for Hire: Private Security Companies' Impact on Military Effectiveness|url=https://books.google.com/books?id=AZJtWi-zF4IC&pg=PA103|date=28 February 2011|publisher=Stanford University Press|isbn=978-0-8047-7459-8|pages=103–}}</ref> According to American military analyst Richard Gabriel, all factions in the conflicts agree that between 4,000 and 5,000 civilians died during the siege caused by military activity of all sides. He states that most of the observers that were present on the ground and other relevant sources in Lebanon agree that estimates of 8,000–10,000 are too high.<ref name=Gabriel/>

Accurate numbers of total casualties are hard to estimate, due to "[t]he chaos of warfare, the destruction of city neighborhoods and refugee camps, the haste with which bodies were buried in mass graves and the absence of impartial agencies".<ref>{{cite news|last=Shipler|first=David K.|title=Toll of Lebanon Dead and Injured Is Still Uncertain in Chaos of War|newspaper=The New York Times|date=14 July 1982}}</ref> Many officials in Beirut, including those of the International Red Cross, claimed that the number of deaths were extremely difficult to estimate correctly. At least one official from a relief organization claimed that in the South about 80% of deaths were civilian and only 20% military.<ref name=Race />

In early September 1982, the independent Beirut newspaper ''An Nahar'' published an estimate of deaths from hospital and police records covering the period from 6 June to 31 August 1982.<ref name=Race>{{cite journal|title=The 1982 Israeli invasion of Lebanon: the casualties|journal=Race & Class|year=1983|volume=24|issue=4|pages=340–3|doi=10.1177/030639688302400404|s2cid=220910633}}</ref> It claimed that 17,285 people were killed: 5,515 people, both military and civilian, in the Beirut area; and 2,513 civilians, as well as 9,797 military forces, including PLO and Syrians, outside of the Beirut area.<ref>{{cite web|title=Mid-Range Wars and Atrocities of the Twentieth Century|url=http://necrometrics.com/20c100k.htm#Lebanon|access-date=4 August 2013}}</ref>

The Lebanese authorities gave a figure of 19,085 killed and 30,000 wounded; in Beirut alone 6,775 died, 84% of them civilians. In southern Lebanon, around 20% of those dead were civilians. <ref>https://www.csmonitor.com/1982/1221/122162.html</ref><ref>{{Cite news |title=New figures emerge on the cost in lives of Israel's war in Lebanon |url=https://www.csmonitor.com/1982/1221/122162.html |access-date=2025-10-29 |work=Christian Science Monitor |issn=0882-7729}}</ref> They do not include the estimated 800–3,500 killed in the Sabra and Shatila massacre.<ref name=Race />

Richard Gabriel estimated that roughly 2,400 PLO fighters were killed during the war, of whom about 1,400 were killed throughout southern Lebanon and another 1,000 killed during the Siege of Beirut. Gabriel also estimated that between 5,000 and 8,000 civilians died during the war. Some later estimates have put the total figure at 18–19,000 killed and more than 30,000 wounded, most of them civilians. 80% of villages in South Lebanon were damaged, with some completely destroyed.<ref name=Gabriel/><ref>{{cite journal|last1=Saad-Ghorayeb |first1=Amal|title=Factors Conducive to the Politicization of the Lebanese ShĪ'a and the Emergence of Hizbu'llĀh|journal=Journal of Islamic Studies|date=2003|volume=14|issue=3 |page=300|doi=10.1093/jis/14.3.273}} cited in Waines An Introduction to Islam (2004)</ref><ref name="Waines2004">{{cite book|author=David Waines|title=An Introduction To Islam|url=https://books.google.com/books?id=8y6qOwAACAAJ|date=1 October 2004|publisher=Cambridge University Press India Pvt. Limited|isbn=978-81-7596-189-0|page=285}}</ref><ref>{{cite news|title=Casualties of Mideast Wars|url=https://www.latimes.com/archives/la-xpm-1991-03-08-mn-2592-story.html|access-date=1 October 2014|work=Los Angeles Times|agency=Associated Press|date=8 March 1991}}</ref><ref name="DonnellyHoward-Hassmann1987">{{cite book|author1=Jack Donnelly|author2=Rhoda E. Howard-Hassmann | author2-link = Rhoda E. Howard-Hassmann |title=International Handbook of Human Rights|url=https://books.google.com/books?id=RmMCmvYBQtMC&pg=PA247|date=1 January 1987|publisher=ABC-CLIO|isbn=978-0-313-24788-0|pages=247–}}</ref> The Israeli government maintained that about 1,000 Palestinian fighters and 800 Lebanese civilians died during the invasion, excluding the siege of Beirut.<ref name=payment>{{cite news|title=Lebanon Demands Payment|newspaper=The Los Angeles Times|date=16 November 1984}}</ref><ref>{{cite news|last=Walsh|first=Edward|title=Lebanon, Israel Resume Talks on Troop Pullout|newspaper=The Washington Post|date=16 November 1984}}</ref> [[Anthony Tucker-Jones]] estimated that about 1,500 PLO fighters were killed. [[Kenneth Pollack]] estimated that 1,200 Syrian soldiers were killed and about 3,000 wounded during the war.<ref name=Pollack/>

====Israeli casualties====
[[File:פינוי פצועים במלחמת לבנון הראשונה.jpg|thumb|A wounded Israeli soldier arrives at [[Rambam Health Care Campus|Rambam Medical Center]] in [[Haifa]] after being evacuated by helicopter]]
According to Israeli figures, Israeli losses in Operation Peace for Galilee were 368 dead and 2,383 wounded, from 6 June until 10 October. The highest ranking IDF casualty of the war was Brigadier General [[Yekutiel Adam]], who was Deputy Chief of Staff of the IDF and had been appointed to be the next Director-General of the [[Mossad]]. He was killed by a Palestinian fighter while seeking protection in a house in Dawha, near Damour, during a mortar attack. Other Israeli fatalities included one Colonel, two Lieutenant Colonels; 19 Majors, 28 Captains, 46 Lieutenants, 132 Sergeants, 90 Corporals, and 49 Privates.<ref>{{cite news | url= https://www.jta.org/1982/10/13/archive/israels-army-reports-368-soldiers-were-killed-and-2383-were-wounded-in-lebanon-war | title = Israel's Army Reports 368 Soldiers Were Killed and 2,383 Were Wounded in Lebanon War | publisher = JTA | date= 13 October 1982| access-date= 10 August 2020}}</ref> According to Kenneth Pollack, Israeli losses in action against the Syrians were 195 dead and 872 wounded. 130 Israeli tanks were destroyed or damaged by the Syrians, as were 175 [[Armoured personnel carrier|APC]]s.<ref name=Pollack/>

The IDF also listed six soldiers as [[Missing in action]] in the [[Battle of Sultan Yacoub]]. Two prisoners and the bodies of another two were later returned to Israel but two soldiers remain missing.<ref name=background>{{cite web |url=https://mfa.gov.il/mfa/mfa-archive/1996/pages/background%20on%20missing%20israeli%20soldiers%20-%2021-jul-96.aspx|title=Background on Missing Israeli Soldiers|author=IDF Spokesman's Office|date=July 21, 1996|access-date=October 16, 2019|publisher=[[Ministry of Foreign Affairs (Israel)|Israel Ministry of Foreign Affairs]]}}</ref>

Palestinian factions captured 11 IDF soldiers during the war, including one of the soldiers missing from Sultan Yacoub, an Israeli Air Force pilot in the [[Battle of the Beaufort|Beaufort battle]], a soldier during the [[Siege of Beirut]] and eight soldiers in the raid on an [[Bhamdoun abduction operation|IDF observation post in Bhamdoun]]. All eleven prisoners were subsequently released in prisoner exchanges.

The IDF's total casualties in Lebanon from the start of Operation Peace for Galilee in June 1982 to the withdrawal to the security zone in June 1985 amounted 654 killed and 3,887
wounded.<ref>Uri Ben-Eliezer, War over Peace – One Hundred Years of Israel's Militaristic Nationalism, University of California Press (2019)</ref><ref>Gad Barzilai, Wars, Internal Conflicts, and Political Order – A Jewish Democracy in the Middle East, State University of New York Press (1996)</ref>

The IDF continued to occupy a substantial part of Lebanon even after the withdrawal to security zone in June 1985. Resistance continued and IDF losses continued to mount. By the time IDF withdrew from Lebanon in May 2000 the total number of IDF fatalities had reached 1,216 killed since June 1982.<ref>[https://books.google.com/books?id=h5QL1LkFGm0C&dq=1%2C216+IDF+killed+lebanon&pg=PT82 Imperfect Compromise: A New Consensus Among Israelis and Palestinians], Michael I. Karpin</ref><ref>{{cite news | url= https://www.haaretz.co.il/blogs/israelimyths/BLOG-1.7336923 | title = 37 שנה למלחמת לבנון הראשונה: "הנוצרים תפסו פראיירים, אותנו" | publisher = www.haaretz.co.il | author= יזהר באר | date =  6 June 2019  | access-date= 20 March 2021}}</ref><ref>{{cite news | url= https://www.news1.co.il/Archive/003-D-93979-00.html | title = רצועת הביטחון – מלחמה ללא שם | publisher = News1 מחלקה ראשונה | author= אורן פטוקה  | date= 8 July 2014 | access-date= 20 March 2021}}</ref>

Israeli civilian casualties from cross-border shelling numbered 9–10 killed and at least 248 wounded between June 1982 and 1999.<ref>1 killed between June 1982 and June 1992 ([https://www.csmonitor.com/1992/0605/05013.html/%28page%29/2 Israelis See Little Apparent Gain From Invasion], ''Csmonitor'', retrieved 4 February 2014), 9 killed from 1985–1999 ([https://www.jewishvirtuallibrary.org/jsource/History/lebciv.html Israeli Civilians Killed/Wounded On the Lebanese Border], ''Jewish Virtual Library'', retrieved 14 February 2014)</ref>

===Security buffer zone and Syrian occupation===
[[File:Ras biada south lebanon.jpg|thumb|upright|An IDF patrol near Ras Biada- south Lebanon, 1986]]
[[File:Shakuf El-Hardun military post in south lebanon.jpg|thumb|upright|IDF military post Shakuf El-Hardun – south Lebanon, 1986]]
[[File:Litani river lebanon.jpg|thumb|upright|IDF military patrol above the Litani river- south Lebanon, 1987]]
[[File:Beaufortnorthern military post south lebanon 1995.jpg|thumb|upright|The Beaufort IDF northern military post- south Lebanon, 1995]]
[[File:Aaichiye to Rayhan military patrol in south lebanon.jpg|thumb|upright|An IDF military patrol between Aaichiye to Rayhan- south Lebanon, 1995]]
In September 1982, the PLO withdrew most of its forces from Lebanon. With U.S. assistance, Israel and Lebanon reached [[The Peace Treaty between Israel and Lebanon|an accord]] in May 1983, that set the stage to withdraw Israeli forces from Lebanon while letting them patrol a "security zone" together with the [[Lebanese Army]].

The instruments of ratification were never exchanged, and in March 1984, under pressure from Syria, Lebanon cancelled the agreement.

In January 1985, Israel started to withdraw most of its troops, leaving a small residual Israeli force and an Israeli-supported militia, the [[South Lebanon Army]] in southern Lebanon in a "[[Israeli occupation of southern Lebanon|security zone]]", which Israel considered a necessary buffer against attacks on its northern territory. The Israeli withdrawal to the security zone ended in June 1985. Israel withdrew fully from Lebanon in 2000.

The political vacuum resulting from the 1985 Israeli withdrawal would eventually lead to the ''de facto'' Syrian occupation of Lebanon. Syria would gain much more power over Lebanon than what it enjoyed before 1982,<ref name="Morris2"/> but it would no longer align with the PLO. In the [[War of the Camps]] that followed the Israeli withdrawal, Syria fought their former Palestinian allies.

===Relocation of PLO===
Following Arafat's decision of June 1982, by September 1982, the PLO had withdrawn most of its forces from West Beirut. Syria backed the anti-Arafat PLO forces of [[Said al-Muragha|Abu Musa]] in the Beka valley from May 1983. When Arafat castigated the Syrian government for blocking PLO supplies in June 1983, the Syrian government declared Arafat a ''persona non-grata'' on 24 June 1983.<ref>[http://www.ajcarchives.org/AJC_DATA/Files/Vol_85__1985.pdf American Jewish Committee Archives] American Jewish Yearbook 1985. p. 126.</ref>

With the withdrawal of the PLO leadership from Tripoli in December 1983 there was an Egyptian-PLO rapprochement, this was found to be encouraging by the Reagan administration but was condemned by the Israeli government.<ref>[http://www.ajcarchives.org/AJC_DATA/Files/Vol_85__1985.pdf American Jewish Committee Archives] American Jewish Yearbook 1985. p. 130.</ref>

===Political results for Israel===
Ariel Sharon requested permission for a military operation that would only go 25 miles into Lebanon, and would only be for 2–3 days. On this basis, nearly the entire [[Knesset]] voted in favor of going to war.<ref>{{cite book |last1=Gilbert |first1=Martin |title=Israel: A History |year=2008 |publisher=Harper Perennial |isbn=978-0688123635 |page=504 |edition=Revised}}</ref> Only [[Hadash]] opposed the war, and even submitted a [[no-confidence motion]] against the Israeli government. Hadash Knesset member [[Meir Vilner]] said in the Knesset plenary session that: "The government is leading Israel to an abyss. It is doing something that in the course of time might lead to crying for generations". In response, they were condemned, and calls were heard, among others from the editor of [[Yedioth Ahronoth|Yediot Ahronoth]], to prosecute them for treason. Left-wing Knesset members, including [[Shulamit Aloni]] and [[Yossi Sarid]], were absent from the plenary for the vote. Even the [[Labor (Israel)|Labor]] faction voted in support. By mid January 1983 Rabin was saying that the Israeli attempt to impose a peace agreement on Lebanon by the use of force was a "mistake" based upon an "illusion".<ref>[http://www.ajcarchives.org/AJC_DATA/Files/Vol_85__1985.pdf American Jewish Committee Archives], American Jewish Yearbook 1985. p. 260.</ref>

Heavy Israeli casualties, alleged [[disinformation]] of Israeli government leaders and the Israeli public by Israeli military, as well as political advocates of the campaign and lack of clear goals led to increasing disquiet among Israelis. This culminated in a large protest rally in [[Tel Aviv]] on 25 September 1982, organized by the [[Peace Now]] movement, following the 1982 Sabra and Shatila massacre. Organizers claimed 400,000 people participated in the rally, and it became known as the "400,000 rally". Other estimates put the figure much lower, maybe reaching 100,000 Israelis but including thousands of reserve soldiers back from Lebanon.<ref>Warschawski, Michel (April–May 2006). [http://www.ameu.org/page.asp?iid=266&aid=576&pg=3 "Inside the Anti-Occupation Camp"] {{webarchive|url=https://web.archive.org/web/20060627212137/http://ameu.org/page.asp?iid=266&aid=576&pg=3 |date=27 June 2006 }}, ''The Link'' (Americans for Middle East Understanding).</ref><ref>[https://www.nytimes.com/1982/09/26/world/israelis-at-huge-rally-in-tel-aviv-demand-begin-and-sharon-resign.html Israelis at huge rally in Tel Aviv demand Begin and Sharon resign] New York Times, 26 September 1982</ref>

===Political outcome for Lebanon===
The Israeli-Maronite alliance dissolved, and Sharon's goal of installing a pro-Israel Christian government in Beirut was not accomplished.<ref>[[#refMorris1999|Morris, p. 551]]</ref> 850,000 Christians emigrated out of Lebanon during the Civil War, most of them permanently.<ref>{{cite book|last=Dagher|first= Carole|title= Bring Down the Walls: Lebanon's Post-War Challenge|page=71|isbn=978-0-312-29336-9|publisher=Palgrave Macmillan|year=2002}}</ref>

The withdrawal of the IDF from central Lebanon in the summer of 1983 was followed by one of the bloodiest phases of the Lebanese war, where the Christian Militia (the [[Lebanese Forces]]) was left alone to defend the "Mountain" area which comprised the [[Aley District|Aley]] and [[Chouf District|Chouf]] districts against a coalition of [[Druze]] [[Progressive Socialist Party|PSP]], PLO remnants, Syrian Army, Lebanese Communist, and [[Syrian Social National Party]]. This heavily impacted the civilian population from both sides, with more than 5,000 killed from both sides.{{citation needed|date=May 2012}} The [[Mountain War (Lebanon)|Mountain War]] ended after the Christian forces and civilians withdrew to the town of Deir el Kamar, where they were besieged for 3 months before all hostilities ceased and they were transported to East Beirut.

The invasion led to the switching of sides of [[Amal Movement]], which used to fight against the [[PLO]] prior to the invasion. The invasion is also popularly held to be the major catalyst for the creation of the Iranian and Syrian supported [[Hezbollah]] organization, which by 1991 was the sole armed militia in Lebanon not supported by Israel and by 2000 had completely replaced the vanquished PLO in Southern Lebanon.{{Citation needed|date=April 2010}}

===Cold War perspective===
According to Abraham Rabinovich, the complete dominance of U.S. and Israeli technology and tactics over those of the [[Eastern Bloc]] was a factor that hastened the demise of the [[Warsaw Pact]] and the Soviet Union.<ref name="Rabinovich p. 510-11"/><ref name="The Bekaa Valley War"/>{{dubious|date=December 2012}} However, this was not the first confrontation in which Soviet weaponry had been outmatched by American weaponry. In many of the Cold War conflicts{{which|date=April 2014}} the Americans and their allies had superior technology. Nonetheless, the gap between the [[First World]] and [[Second World]] weaponry was more apparent in the 1980s and weighed more heavily on Second World leaders.

===Long-term consequences===
One of the lingering consequences of the Israeli invasion of Lebanon was the creation of [[Hezbollah]].<ref>{{cite news|url=https://news.bbc.co.uk/2/hi/middle_east/4314423.stm|title=Who are Hezbollah?|work=BBC News|access-date=1 May 2017}}</ref>

In 2000, when [[Ehud Barak]] was Israeli Prime Minister, Israel withdrew from the [[Israeli occupation of southern Lebanon|security zone]] to behind the [[Blue Line (Lebanon)|Blue Line]]. Lebanon and Hezbollah continue to claim a small area called [[Shebaa Farms]] as Lebanese territory, but Israel insists that it is captured Syrian territory with the same status as the [[Golan Heights]]. The United Nations has not determined the final status of Shebaa Farms but has determined that Israel has complied with UNSC resolution 425. The UN Secretary-General had concluded that, as of 16 June 2000, Israel had withdrawn its forces from Lebanon in accordance with [[UN Security Council Resolution 425]] of 1978, bringing closure to the 1982 invasion as far as the UN was concerned.<ref>[https://www.un.org/News/Press/docs/2000/20000618.sc6878.doc.html "Security Council Endorses Secretary-General's Conclusion On Israeli Withdrawal From Lebanon as of 16 June"], UN Press release SC/6878, 18 June 2000.</ref>

Israel's withdrawal from Lebanon led to pressure on the Syrians to withdraw their [[Syrian occupation of Lebanon|occupation forces]] and this pressure intensified after the assassination of the popular Lebanese Prime Minister, [[Rafik Hariri]]. On 26 April 2005 the Syrian occupation forces withdrew from Lebanon.<ref>{{cite web |url=https://www.un.org/News/Press/docs/2005/sc8372.doc.htm |title=Security Council Press Release SC/8372 |publisher=United Nations |date=29 April 2005 |access-date=29 February 2012}}</ref>

===Other consequences===
* The invasion removed [[PLO]] presence from Southern Lebanon and the Syrian military was weakened by combat losses, especially in the air. However, the removal of the PLO also paved the way for the rise of other militant groups, particularly [[Hezbollah]].
* The failure of the larger Israeli objectives of resolving the conflict in Lebanon with [[May 17 Agreement|a peace treaty]].<ref name="urlThe Arab-Israeli Wars">{{cite web|url=http://www.mfa.gov.il/MFA/History/Modern+History/Centenary+of+Zionism/The+Arab-Israeli+Wars.htm |title=The Arab-Israeli Wars |author=Netanel Lorch |work=Israel Ministry of Foreign Affairs |access-date=6 April 2011 |archive-url=https://web.archive.org/web/20110429002826/http://www.mfa.gov.il/MFA/History/Modern%2BHistory/Centenary%2Bof%2BZionism/The%2BArab-Israeli%2BWars.htm |archive-date=29 April 2011 |url-status=dead }}</ref>
* The [[Lebanese Council for Development and Reconstruction]] estimated the cost of the damage from the invasion at 7,622,774,000 [[Lebanese pound]]s, equivalent to US$2 billion at the time.<ref>{{cite web |url=http://domino.un.org/unispal.nsf/0/0a660a16a0ef988d852568b60053c49a?OpenDocument |title=E/CN.4/2000/22/Add.1 of 3 March 2000 |publisher=United Nations |access-date=29 February 2012 |url-status=dead |archive-url=https://web.archive.org/web/20111223064022/http://domino.un.org/unispal.nsf/0/0a660a16a0ef988d852568b60053c49a?OpenDocument |archive-date=23 December 2011}}</ref>
* Al-Qaeda leader [[Osama bin Laden]] said in a videotape, released on the eve of the [[2004 United States presidential election|2004 U.S. presidential elections]], that he was inspired to attack the buildings of the United States in the [[September 11 attacks]] by the 1982 Israeli invasion of Lebanon, in which towers and buildings in Beirut were destroyed in the siege of the capital.<ref>Arak, Joel (29 October 2004). [https://www.cbsnews.com/news/osama-bin-laden-warns-america/ "Osama Bin Laden Warns America: Terror Leader Admits For First Time That He Ordered 9/11 Attacks"], CBS News.</ref>
* Egypt recalled its [[Embassy of Egypt, Tel Aviv#List of representatives|ambassador]] from Israel—the most serious diplomatic rupture since the [[Camp David Accords]]. The move, prompted by Israel’s role in renewed fighting and the Beirut massacre, did not amount to a full break in relations.<ref name="x161">{{cite web | last=Tohamy | first=Olfat | title=Egyptians Recall Envoy From Israel In Major Protest | website=The Washington Post | date=1982-09-21 | url=https://www.washingtonpost.com/archive/politics/1982/09/21/egyptians-recall-envoy-from-israel-in-major-protest/c7bf86dd-b502-44fe-be46-52f8cb918832/ | access-date=2025-08-01}}</ref>

==War crimes==
{{Main|Sabra and Shatila massacre#U.N. condemnation}}
On 16 December 1982, the [[United Nations General Assembly]] condemned the Sabra and Shatila massacre and declared it to be an act of [[genocide]].<ref>[http://daccess-dds-ny.un.org/doc/RESOLUTION/GEN/NR0/426/01/IMG/NR042601.pdf?OpenElement U.N. General Assembly, Resolution 37/123, adopted between 16 and 20 December 1982.] {{webarchive |url=https://web.archive.org/web/20120429183049/http://daccess-dds-ny.un.org/doc/RESOLUTION/GEN/NR0/426/01/IMG/NR042601.pdf?OpenElement |date=29 April 2012 }} Retrieved 4 January 2010. (If link doesn't work, try: [https://www.un.org/ U.N.]→ welcome → documents → General Assembly Resolutions → 1982 → 37/123.)</ref>
The voting record<ref>[http://unbisnet.un.org:8080/ipac20/ipac.jsp?profile=voting&index=.VM&term=ares37123d#focus Voting Summary U.N. General Assembly Resolution 37/123D.] {{webarchive |url=https://web.archive.org/web/20110604072753/http://unbisnet.un.org:8080/ipac20/ipac.jsp?profile=voting&index=.VM&term=ares37123d#focus |date=4 June 2011 }} Retrieved 4 January 2010,</ref><ref name=LK-37>[[Leo Kuper]], "Theoretical Issues Relating to Genocide: Uses and Abuses", in George J. Andreopoulos, ''Genocide: Conceptual and Historical Dimensions'', University of Pennsylvania Press, 1997, {{ISBN|978-0-8122-1616-5}}, p. 37.</ref><ref name=WS-455>{{cite book|first=William|last= Schabas|title=Genocide in International Law: The Crime of Crimes|url=https://archive.org/details/genocideinternat00scha_610|url-access=limited|isbn=978-0-521-71900-1 |page=[https://archive.org/details/genocideinternat00scha_610/page/n474 455]|publisher=Cambridge University Press|year=2009}}</ref> on section D of Resolution 37/123, which "resolves that the massacre was an act of genocide", was: yes: 123; no: 0; abstentions: 22; non-voting: 12. The abstentions were: Belgium, Denmark, France, Germany (Federal Republic), [[Iceland]], Ireland, Italy, [[Luxembourg]], the Netherlands, Norway, Portugal, Sweden, United Kingdom, U.S., Canada, Australia, New Zealand, [[Israel]], [[Ivory Coast]], [[Papua New Guinea]], [[Barbados]] and [[Dominican Republic]]. Some delegates disputed the claim that the massacre constituted [[genocide]].

In 1982, an international commission investigated into reported violations of International Law by Israel during its invasion of the Lebanon. Chairman was [[Seán MacBride]], the other members were [[Richard A. Falk]], [[Kader Asmal]], Brian Bercusson, Géraud de la Pradelle, and Stefan Wild. The commission's report<ref name="MacBride 1983 191–2">{{cite book
|last1=MacBride|first1=Seán|last2=Asmal|first2=A. K.|last3=Bercusson|first3=B.|last4=Falk|first4=R. A.|last5=de la Pradelle|first5=G.|last6=Wild|first6=S.|title=Israel in Lebanon: The Report of International Commission to enquire into reported violations of International Law by Israel during its invasion of the Lebanon|publisher=Ithaca Press|year=1983|location=London
|page=191|isbn=978-0-903729-96-3}}</ref> concluded that "the government of Israel has committed acts of aggression contrary to international law", that the government of Israel had no valid reasons under international law for its invasion of Lebanon, and that the Israeli authorities or forces were directly or indirectly responsible for the [[Sabra and Shatila massacre|massacres and killings]], which have been reported to have been carried out by Lebanese militiamen in Sabra and the Shatila refugee camp in the Beirut area between 16 and 18 September.<ref name="MacBride 1983 191–2"/>

Following a four-month investigation, on 8 February 1983, the [[Kahan Commission]] submitted its report, which was released to the public by spokesman Bezalel Gordon simultaneously in Hebrew and English. It concluded that direct responsibility rested with the Gemayel Phalangists led by Fadi Frem, and that no Israelis were deemed directly responsible, although Israel was held to be indirectly responsible:
:The decision on the entry of the Phalangists into the refugee camps was taken without consideration of the danger – which the makers and executors of the decision were obligated to foresee as probable – the Phalangists would commit massacres and pogroms against the inhabitants of the camps, and without an examination of the means for preventing this danger.
:Similarly, it is clear from the course of events that when the reports began to arrive about the actions of the Phalangists in the camps, no proper heed was taken of these reports, the correct conclusions were not drawn from them, and no energetic and immediate action were taken to restrain the Phalangists and put a stop to their actions.

==In cinema==
Several films depict events from the 1982 war:
* ''[[Cup Final (film)|Cup Final]]'' (1991)
* ''[[Beaufort (film)|Beaufort]]'' (2007)
* ''[[Waltz with Bashir]]'' (2008)
* ''[[Lebanon (2009 film)|Lebanon]]'' (2009)
* ''[[1982 (2019 film)|1982]]'' (2019)

==See also==
* [[1978 South Lebanon conflict]]
* [[2006 Lebanon War]]
* [[2024 Israeli invasion of Lebanon]]
* [[Israel-Lebanon relations]]
* [[Israeli occupation of southern Lebanon]]
* [[Multinational Force in Lebanon]]
* [[Operation Accountability]]
* [[Operation Grapes of Wrath]]
* [[Operation Tipped Kettle]] (US–Israeli government operation transferring weapons seized by Israeli forces from the [[Palestine Liberation Organization]] in Lebanon to the [[Nicaraguan Contras]].)
* [[International Day of Innocent Children Victims of Aggression]]

'''General:'''
* [[List of modern conflicts in the Middle East]]

==Footnotes==
{{reflist|group=lower-roman}}
{{notelist}}

==Notes==
{{reflist}}

==References==
* {{cite book|ref=refchomsky1983|last=Chomsky|first=Noam|author-link=Noam Chomsky|title=The Fateful Triangle: the United States, Israel and the Palestinians|publisher=[[South End Press]]|year=1983|isbn=978-0-89608-187-1|title-link=The Fateful Triangle: the United States, Israel and the Palestinians}}
* {{cite book|ref=refCobban1984|last=Cobban|first=H.|title=The Palestinian Liberation Organization: People, Power and Politics|year=1984|publisher=Cambridge University Press|location=Cambridge|isbn=978-0-521-27216-2|url-access=registration|url=https://archive.org/details/palestinianliber0000cobb}}
* {{cite book|ref=reffisk2001|last=Fisk|first=Robert|title=Pity the Nation: Lebanon at War|year=2001|publisher=Oxford University Press|isbn=978-0-19-280130-2|url=https://books.google.com/books?id=8a9jjx_JO60C&pg=PA255|author-link=Robert Fisk}}{{Dead link|date=March 2023 |bot=InternetArchiveBot |fix-attempted=yes }}
* {{cite book|ref=reffriedman2006|last=Friedman|first=Thomas|author-link=Thomas Friedman|year=2006|title=From Beirut to Jerusalem|publisher=Anchor Books|location=New York|isbn=978-0-385-41372-5|url=https://archive.org/details/frombeiruttojeru00frie}}
* {{Cite book
 | ref = refHerzog2005
 | publisher = [[Vintage Books]]
 | isbn = 978-1-4000-7963-6
 | page = [https://archive.org/details/arabisraeliwarsw0000herz/page/560 560]
 | last = Herzog
 | first = Chaim
 | author-link = Chaim Herzog
 | author2 = Gazit, Shlomo
 | title = The Arab-Israeli Wars: War and Peace in the Middle East
 | year = 2005
 | url = https://archive.org/details/arabisraeliwarsw0000herz/page/560
 | author2-link = Gazit, Shlomo
 }}
* {{cite book|ref=refmaoz2006|last=Maoz|first=Zeev|title=Defending the Holy Land: A Critical Analysis of Israel's Security and Foreign Policy|year=2006|publisher=The University of Michigan Press|location=Ann Arbor|isbn=978-0-472-11540-2|author-link=Zeev Maoz}}
* {{Cite book |last=Meier |first=Daniel |title=Shaping Lebanon's borderlands: armed resistance and international intervention in South Lebanon |date=2016 |publisher=I.B. Tauris |isbn=978-1-78453-253-6 |series=Library of modern Middle East studies |location=London}}
* {{Cite book
 | ref=refMorris1999
 | publisher = [[Alfred A. Knopf]], New York
 | isbn = 978-0-679-42120-7
 | page = [https://archive.org/details/righteousvictims00morr_626/page/n784 768]
 | last = Morris
 | first = Benny
 | author-link = Benny Morris
 | title = Righteous Victims
 | url=https://archive.org/details/righteousvictims00morr_626
 | url-access=limited
 | year = 1999
 }}
* {{cite book| ref=refRabinovich2004 |last=Rabinovich|first=Abraham|author-link=Abraham Rabinovich|title=The Yom Kippur War: The Epic Encounter That Transformed the Middle East|publisher= Schocken Books |year=2004|isbn=978-0-8052-1124-5}}
* {{cite book|ref=refReagan2007|last=Reagan|first=Ronald|title=The Reagan Diaries|year=2007|publisher=Harper Collins|isbn=978-0-06-087600-5|author-link=Ronald Reagan|editor=Douglas Brinkley|url=https://archive.org/details/reagandiaries00reag}}
* {{cite book| ref=refSayigh1999|last=Sayigh|first=Y.|title=Armed Struggle and the Search for State: The Palestinian National Movement, 1949–1993|year=1999|publisher=Oxford University Press|location=Oxford|isbn=978-0-19-829643-0}}
* {{cite book|ref=refSchiff1984|last1=Schiff|first1=Ze'ev|author-link=Ze'ev Schiff|title=Israel's Lebanon War|year=1984|publisher=Simon & Schuster|location=New York, NY| isbn=978-0-671-47991-6|last2=Ya'ari|first2=Ehud|author-link2=Ehud Ya'ari|url=https://archive.org/details/israelslebanonwa0000schi |url-access=registration|page=[https://archive.org/details/israelslebanonwa0000schi/page/35 35]}}
* {{Cite book|ref=refSeale1989|last=Seale|first=Patrick| author-link =Patrick Seale|title=Asad: The Struggle for Syria|publisher=University of California Press|isbn=978-0-520-06667-0|year=1989}}
* {{cite book |ref        = refshlaim1999
 |last       = Shlaim
 |first      = Avi
 |author-link = Avi Shlaim
 |title      = The Iron Wall: Israel and the Arab world
 |publisher  = Norton
 |year       = 1999
 |isbn       = 978-0-393-04816-2
 |url        = https://archive.org/details/ironwallisraelar00shla
}}
* {{cite book|ref=refshlaim2007|last= Shlaim|first= Avi |year=2007|title=Lion of Jordan; The life of King Hussein in War and Peace|publisher= Allen Lane|isbn= 978-0-7139-9777-4}}
* {{cite book|ref=refWalker1983|author=((Bryce Walker & the editors of Time-Life books))|title=Fighting Jets: The Epic of Flight|url=https://archive.org/details/fightingjets00walk|url-access=registration|publisher=[[Time Life Books]] |year=1983|isbn=978-0-8094-3362-9}}

==Further reading==
* {{cite book | last=Barzilai|first= Gad|year=1996|title=Wars, Internal Conflicts, and Political Order: A Jewish Democracy in the Middle East|publisher=New York University Press|isbn=978-0-7914-2944-0}}
* {{cite book|last=Bregman|first=Ahron|title=Israel's Wars: A History Since 1947|year=2002|publisher=Routledge|location=London|isbn=978-0-415-28716-6}}
* {{cite book|last=Brzoska|first=M.|title=Arms and Warfare: Escalation, De-Escalation, and Negotiation|year=1994|publisher=University of South Carolina Press|isbn=978-0-87249-982-9|author2=Pearson, F. S.}}
*{{cite magazine|last=Cooper|first=Tom|title='Floggers" in Action: Early MiG-23s in Operational Service |magazine=[[Air Enthusiast]] |date=July–August 2002|issue=100 |pages=56–67 |issn=0143-5450}}
* {{cite book|last=Gilbert|first=Martin|title=Israel: A History|year=1998|publisher=Black Swan|location=London|isbn=978-0-688-12362-8|author-link=Martin Gilbert|url=https://archive.org/details/israelhistory00gilb}}
* {{cite book|last=Harkabi|first=Y.|title=Israel's Fateful Hour|url=https://archive.org/details/israelsfatefulho00hark|url-access=registration|year=1989|publisher=Harper & Row|location=New York, NY|isbn=978-0-06-091613-8}}
* {{cite book|last=Penslar|first=Derek J.|title=Israel in History; The Jewish state in comparative perspective|year=2007|publisher=Routledge|isbn=978-0-415-40036-7|author-link=Derek Penslar}}
* {{cite encyclopedia|editor-last=Sela|editor-first=Avraham|encyclopedia=The Continuum Political Encyclopedia of the Middle East|year=2002|publisher=Continuum|location=New York|isbn=978-0-8264-1413-7|editor-link=Avraham Sela|title=Arab-Israeli Conflict}}

==External links==
{{commons category}}
* {{usurped|1=[https://web.archive.org/web/20060509055022/http://www.liberty05.com/civilwar/civi2.html Lebanese Civil War 1982]}}
* [https://web.archive.org/web/20070207084106/http://www.ariel-sharon-life-story.com/14-Ariel-Sharon-Biography-1982-The-Lebanon-War.shtml A detailed account of 1982 Lebanon War – From Ariel Sharon's biography]
* [http://www.ynetnews.com/articles/0,7340,L-3284684,00.html 1978 Israel – Lebanon Conflict] by [[Ynetnews]]
* [https://www.haaretz.com/hasen/spages/1065945.html Ex-spymaster: First Lebanon War was Mossad success, despite Sabra and Chatila] By Nachik Navot, ''[[Haaretz]]''

{{Israeli wars}}
{{Arab–Israeli conflict}}

{{authority control}}

{{DEFAULTSORT:Lebanon War}}
[[Category:1982 Lebanon War| ]]
[[Category:Israeli invasions of Lebanon|Lebanon 1982]]
[[Category:Palestinian insurgency in South Lebanon]]
[[Category:1982 in Israel|Lebanon War]]
[[Category:Conflicts in 1982|Lebanon War]]
[[Category:1982 in Lebanon|War]]
[[Category:Menachem Begin]]
[[Category:Wars involving Israel]]
[[Category:Military operations involving the Palestine Liberation Organization]]
[[Category:Wars involving Lebanon]]
[[Category:Israeli–Lebanese conflict]]