View source for AGM-158 JASSM

{{Short description|American low observable air-launched cruise missile}}
{{Infobox weapon
| name               = AGM-158 JASSM
| image              = Agm-158 JASSM.jpg
| image_size         = 300
| alt                = 
| caption            = 
| type               = [[Air-launched cruise missile]]
| origin             = United States
<!-- Type selection -->| is_missile         = y
<!-- Service history -->| service            = 2003–present
| used_by            = {{ubl|[[United States Air Force]]|[[Royal Australian Air Force]]|[[Polish Air Force]]|[[Finnish Air Force]]}}
| wars               = {{Tree list}}
*[[Syrian Civil War]]
**[[American-led intervention in the Syrian civil war|U.S. intervention in Syria]]
{{Tree list/end}}
<!-- Production history -->| designer           = [[Lockheed Martin]]
| design_date        = 1995–1998
| manufacturer       = [[Lockheed Martin Missiles and Fire Control]]
| unit_cost          = $698,000 (JASSM Baseline AGM-158A, FY17)<ref name=UnitCost>{{cite web|url=https://www.dacis.com/budget/budget_pdf/FY20/PROC/F/JASSM0_4.pdf|title=JASSM unclassified budget document|date=February 2019}}</ref>
| production_date    = 1998–present
| number             = 7,500
| variants           = <!-- General specifications -->
| spec_label         = AGM-158A
| mass               = {{cvt|1021|kg|lb|order=flip}}
| length             = {{cvt|4.287|m|ftin|0|order=flip}}
| width              = {{cvt|550|mm|in|0|order=flip}}
| height             = {{cvt|450|mm|in|0|order=flip}}
<!-- Explosive specifications -->| filling            = WDU-42/B penetrator
| filling_weight     = {{cvt|1000|lb|kg}}
| detonation         = FMU-156/B 
| yield              = <!-- Vehicle/missile specifications -->
| engine             = [[Teledyne CAE J402|Teledyne CAE J402-CA-100]] turbojet
| engine_power       = {{cvt|3|kN|lbf|0|order=flip}}
| fuel_capacity      = 
| vehicle_range      = {{cvt|370.4|km|mi|0|order=flip}}
| speed              = 
| guidance           = [[GPS]], [[Inertial navigation system|INS]], [[Imaging infrared|IIR]]
| steering           = Moving wings & 2 [[tailplane]]s
<!-- Missiles only -->| wingspan           = 
| propellant         = 
| ceiling            = 
| altitude           = 
| boost              = 
| depth              = 
| accuracy           = {{cvt|3|m|ftin|0|order=flip}} [[Circular error probable|CEP]]
| launch_platform    = [[Rockwell B-1 Lancer|B-1 Lancer]], [[Northrop B-2 Spirit|B-2 Spirit]], [[Boeing B-52 Stratofortress|B-52 Stratofortress]], [[McDonnell Douglas F-15E Strike Eagle|F-15E Strike Eagle]], [[General Dynamics F-16 Fighting Falcon|F-16 Fighting Falcon]], [[McDonnell Douglas F/A-18 Hornet|F/A-18 Hornet]]<br />[[Rapid Dragon]]: [[Lockheed C-130 Hercules|C-130]], [[Boeing C-17 Globemaster III|C-17]]
| transport          = <!-- For all -->
| ref                = [[Janes Information Services|Janes]]<ref name=Janes>{{Citation |author=[[Janes Information Services|Janes]] |url=https://customer.janes.com/display/JALW3784-JALW |title=AGM-158A JASSM and JASSM-ER (AGM-158B/B-2/D) |date=26 August 2022 |website=Janes Weapons: Air Launched |publisher=Jane's Group UK Limited. |publication-place=[[Coulsdon]], [[Surrey]] |url-access=subscription |access-date=21 May 2023}}</ref>
}}
{{Infobox weapon
| name               = Joint Air-to-Surface Standoff Missile Extended Range (JASSM-ER)
| is_missile         = y
| design_date        = 2002
| manufacturer       = [[Lockheed Martin Missiles and Fire Control]]
| unit_cost          = $1,040,000 AGM-158B, FY20<ref name=ASF>{{cite web|url=https://www.airandspaceforces.com/usaf-to-start-buying-extreme-range-jassms-in-2021/|website=Air and Space Forces Magazine|first=Brian|last=Everstine|title=USAF to Start Buying 'Extreme Range' JASSMs in 2021|date=14 February 2020 }}</ref>
<br />$1,665,000 AGM-158B-2, FY24<ref name="auto1">{{cite web|url=https://www.saffm.hq.af.mil/Portals/84/documents/FY23/PROCUREMENT_/FY23%20Air%20Force%20Missile%20Procurement.pdf?ver=QeRLpOSY7vcLmsKbr3C-Qw%3D%3DU|website=Air Force Financial Management & Comptroller|title=Department of Defense Fiscal Year (FY) 2023 Budget Estimates; Justification Book Volume 1 of 1; Missile Procurement, Air Force|date=April 2022}}</ref>
| production_date    = AGM-158 since 2006
<br />AGM-158B-2 since FY2024
| number             = 3360
<!-- General specifications -->| spec_label         = AGM-158B JASSM-ER
| mass               = {{cvt|1200|kg|lb|order=flip}} (est)
| length             = {{cvt|4.287|m|ftin|0|order=flip}}
| width              = {{cvt|635|mm|in|0|order=flip}}
| height             = {{cvt|450|mm|in|0|order=flip}}
<!-- Explosive specifications -->| filling            = WDU-42/B penetrator
| filling_weight     = {{cvt|1000|lb|kg}}
| detonation         = FMU-156/B AGM-158B
<br />FMU-162/B AGM-158B-2 and on
| yield              = <!-- Vehicle/missile specifications -->
| engine             = [[Williams F107|Williams F107-WR-105]] turbofan
| engine_power       = 1,400 lbf (6.22 kN)
| pw_ratio           = 
| fuel_capacity      = 
| vehicle_range      = > {{cvt|926|km|mi|0|order=flip}}
| speed              = 
| guidance           = [[Inertial navigation system|INS]], [[Imaging infrared|IIR]], [[GPS]] ([[GPS Block III#Military (M-code)|M-code AGM-158B-3]])
| steering           = <!-- Missiles only -->
| wingspan           = {{cvt|2.7|m|ftin|0|order=flip}}
| propellant         = 
| ceiling            = 
| altitude           = 
| boost              = 
| depth              = 
| accuracy           = {{cvt|3|m|ftin|0|order=flip}} [[Circular error probable|CEP]]
| launch_platform    = 
| transport          = <!-- For all -->
| ref                = [[Janes Information Services|Janes]]<ref name=Janes/>[[Director, Operational Test and Evaluation|DOT&E]]<ref>{{cite web|url=https://www.dote.osd.mil/Portals/97/pub/reports/FY2013/af/2013jassm-er.pdf?ver=2019-08-22-111346-487|website=Director, Operational Test and Evaluation|title=Joint Air-to-Surface Standoff Missile – Extended Range (JASSM-ER) |date=2013}}</ref>
[[Assistant Secretary of the Air Force (Financial Management & Comptroller)|SAF/FM]]<ref name="auto1"/>
}}

[[File:AGM-158_JASSM_during_tests.jpg|thumb|right|210px|A JASSM detonates above a hardened target during tests.]]

The '''AGM-158 Joint Air-to-Surface Standoff Missile''' ('''AGM-158 JASSM''') is a low detection [[Standoff missile|standoff]] [[air-launched cruise missile]] developed by [[Lockheed Martin]] for the [[United States Armed Forces]].<ref>{{Cite web |title=AGM-158 JASSM Air-launched cruise missile |url=https://www.militarytoday.com/missiles/agm_158_jassm.htm |url-status=live |archive-url=https://web.archive.org/web/20230619234928/https://www.militarytoday.com/missiles/agm_158_jassm.htm |archive-date=19 June 2023 |website=Military Today}}</ref> It is a large, stealthy long-range weapon with a {{convert|1000|lb|kg|adj=on}} armor piercing warhead. It completed testing and entered service with the U.S. Air Force in 2009, and has entered foreign service in Australia, Finland, and Poland as of 2014. An extended range version of the missile, the '''AGM-158B JASSM-ER''' (Joint Air-to-Surface Standoff Missile-Extended Range), entered service in 2014 as well as an anti-ship derivative, the '''[[AGM-158C LRASM]]''' (Long Range Anti-Ship Missile) in 2018. By September 2016, Lockheed Martin had delivered 2,000 total JASSMs comprising both variants to the USAF.<ref>{{Cite web |date=6 September 2016 |title=US Air Force Takes Delivery of 2,000th JASSM Cruise Missile |url=http://www.deagel.com/news/US-Air-Force-Takes-Delivery-of-2000th-JASSM-Cruise-Missile_n000015588.aspx |url-status=dead |archive-url=https://web.archive.org/web/20160920003533/http://www.deagel.com/news/US-Air-Force-Takes-Delivery-of-2000th-JASSM-Cruise-Missile_n000015588.aspx |archive-date=20 September 2016 |website=deagel.com}}</ref>

== Program overview ==

=== Origins ===
The JASSM project began in 1995 after the cancellation of the [[AGM-137 TSSAM]] project. The TSSAM was designed as a high precision stealthy missile for use at standoff distances, but poor management of the project resulted in rising costs. Since the requirement for such weapons still existed, the military quickly announced a follow-up project with similar goals. Initial contracts for two competing designs were awarded to [[Lockheed Martin]] and [[McDonnell Douglas]] in 1996, and the missile designations AGM-158A and [[AGM-159 JASSM|AGM-159A]] were allocated to the two weapons. Lockheed Martin's AGM-158A won and a contract for further development was awarded in 1998.

The AGM-158A is powered by a [[Teledyne CAE J402]] [[turbojet]]. Before launch the wings are folded to reduce size. Upon launch the wings deploy automatically. There is a single vertical tail. Guidance is via [[Inertial guidance system|inertial navigation]] with [[global positioning system]] updates. An [[imaging infrared]] seeker provides target recognition and terminal homing. A [[data link]] allows the missile to transmit its location and status during flight, allowing improved bomb damage assessment. The warhead is a WDU-42/B {{cvt|1000|lb|kg}} penetrator. The JASSM may be carried by a wide range of aircraft: the [[F-15E Strike Eagle|F-15E]]; [[F-16 Fighting Falcon|F-16]]; [[F/A-18 Hornet|F/A-18]]; [[Lockheed Martin F-35 Lightning II|F-35]]; [[B-1 Lancer|B-1B]]; [[B-2 Spirit|B-2]]; and [[B-52 Stratofortress|B-52]] are all intended to carry the weapon.<ref>{{Cite web |title=JASSM |url=https://www.lockheedmartin.com/en-us/products/jassm.html |url-status=live |archive-url=https://web.archive.org/web/20150509075206/http://www.lockheedmartin.com/us/products/jassm.html |archive-date=9 May 2015 |access-date=27 May 2015 |website=Lockheed Martin |quote=B-1, B-2, B-52, F-16, F-15E and F/A-18 integrated}}</ref> Unlike typical cruise missiles, which fly close to the ground to avoid detection, the JASSM's stealthy design allows it to fly at higher altitudes to achieve long flight ranges without using up energy maneuvering around terrain obstacles.<ref>{{Cite web |last=Johnson |first=Reuben F. |date=17 June 2023 |title=Rapid Dragon: A Game-changer in Stand-Off Weapons Delivery |url=https://www.ainonline.com/aviation-news/defense/2023-06-17/rapid-dragon-game-changer-stand-weapons-delivery |url-status=live |archive-url=https://web.archive.org/web/20230618003729/https://www.ainonline.com/aviation-news/defense/2023-06-17/rapid-dragon-game-changer-stand-weapons-delivery |archive-date=18 June 2023 |website=Aviation International News}}</ref>

The [[Center for Strategic and Budgetary Assessments]] (CSBA) has suggested lightening the warhead of the AGM-158A to increase its range. That way it would be able to be fired a greater distance from enemy air defenses while being cheaper and available in greater numbers for protracted conflicts than the AGM-158B JASSM-ER variant.<ref>[http://www.nationaldefensemagazine.org/blog/Lists/Posts/Post.aspx?ID=1879 Study: Pentagon Missing Target on Air Weapon Investments]{{Dead link|date=May 2019 |bot=InternetArchiveBot |fix-attempted=yes }} – Nationaldefensemagazine.org, 23 June 2015</ref>

By 2023, Lockheed Martin could produce over 500 missiles total of JASSM and [[LRASM]] versions per year, with plans to increase production to 1,000 missiles annually.<ref>{{Cite web |last=Gordon |first=Chris |date=4 April 2023 |title=Lockheed Martin Looks to Boost LRASM Production as US Rushes to Buy Anti-Ship Weapons |url=https://www.airandspaceforces.com/lockheed-martin-double-lrasm-production/ |url-status=live |archive-url=https://web.archive.org/web/20230405111631/https://www.airandspaceforces.com/lockheed-martin-double-lrasm-production/ |archive-date=5 April 2023 |website=Air & Space Forces Magazine}}</ref>

=== Problematic development ===

[[File:7bw1.jpg|thumb|right|210px|Test launch in 2005 at White Sands]]
In 1999, powered flight tests of the missile began. These were successful, and production of the JASSM began in December 2001. The weapon began operational testing and evaluation in 2002. Late that year, two missiles failed tests and the project was delayed for three months before completing development in April 2003. Two more launches failed, this time as a result of launcher and engine problems. In July 2007, a $68 million program to improve JASSM reliability and recertify the missile was approved by the [[Department of Defense]].<ref>{{cite web |last=Putrich |first=Gayle S. |date=20 July 2007 |title=$68M plan to fix JASSM gets the OK |url=http://www.airforcetimes.com/news/2007/07/defense_jassm_070720/ |url-status=dead |archive-url=https://archive.today/20120724134141/http://www.airforcetimes.com/news/2007/07/defense_jassm_070720/ |archive-date=24 July 2012 |work=Air Force Times}}</ref> A decision on whether to continue with the program was deferred until spring 2008.<ref>{{cite web |last=Butler |first=Amy |date=20 July 2007 |title=Pentagon To Announce JASSM Decision In 2008 – Amy Butler/Aerospace Daily & Defense Report |url=http://www.aviationweek.com/aw/generic/story.jsp?id=news/JASSM072007.xml&headline=Pentagon%20To%20Announce%20JASSM%20Decision%20In%202008&channel=defense |url-status=dead |archive-url=https://web.archive.org/web/20070927012846/http://www.aviationweek.com/aw/generic/story.jsp?id=news%2FJASSM072007.xml&headline=Pentagon%20To%20Announce%20JASSM%20Decision%20In%202008&channel=defense |archive-date=September 27, 2007 |website=Aviation Week}}</ref> Lockheed agreed to fix the missiles at its own cost and tightened up its manufacturing processes.<ref>{{cite web |last=Capaccio |first=Tony |date=30 June 2009 |title=Lockheed $6 Billion Missile Program May Be Killed, U.S. Says |url=https://www.bloomberg.com/apps/news?pid=20601103&sid=aaH6VKOIUXUs |url-status=dead |archive-url=https://archive.today/20120720164202/http://www.bloomberg.com/apps/news?pid=newsarchive&sid=aaH6VKOIUXUs |archive-date=20 July 2012 |access-date=8 October 2015 |publisher=Bloomberg}}</ref>

On 27 August 2009, David Van Buren, assistant secretary of the Air Force for acquisition, said that there would be a production gap for the JASSM while further tests were held.<ref>{{cite web |last=Butler |first=Amy |date=28 August 2009 |title=JASSM Production Gap Manageable USAF Says |url=http://aviationweek.com/awin/jassm-production-gap-manageable-usaf-says |url-status=live |archive-url=https://web.archive.org/web/20201015095631/https://aviationweek.com/jassm-production-gap-manageable-usaf-says |archive-date=15 October 2020 |access-date=8 October 2015 |work=Aviation Week}}</ref> Further tests in 2009 were more successful however, with 15 out of 16 rounds hitting the intended target, well above the 75% benchmark set for the test. This cleared JASSM for entry into service.<ref name="Pittaway">{{cite journal|last=Pittaway|first=Nigel|title=JASSM introduction to RAAF service|journal=Defence Today|volume=8|issue=2|pages=11|publisher=Strike Publications|location=Amberley|date=March 2010|issn=1447-0446}}</ref> The [[United States Air Force]] plans to acquire up to 4,900 AGM-158 missiles.<ref name="did">{{cite web|url=http://www.defenseindustrydaily.com/2005/10/jassm/-no-maam-which-will-it-be/index.php |title=JASSM/ No Ma'am – Which Will It Be? |author=<!--Staff writer(s); no by-line.--> |date=12 Oct 2005 |publisher=Defence Industry Daily |access-date=3 June 2015 |url-status=dead |archive-url=https://web.archive.org/web/20070406021213/http://www.defenseindustrydaily.com/2005/10/jassm/-no-maam-which-will-it-be/index.php |archive-date=April 6, 2007 }}</ref> Meanwhile, the [[United States Navy]] had originally planned to acquire 453 AGM-158 missiles<ref>{{cite web|url=http://www.edefenseonline.com/default.asp?func=article&aref=10_05_2005_OM |title=JASSM Program Getting Back on Track |author=Rivers, Brendan |date=1 Feb 2006 |publisher=eDefence |access-date=3 June 2015 |url-status=dead |archive-url=https://web.archive.org/web/20060316044332/http://www.edefenseonline.com/default.asp?func=article&aref=10_05_2005_OM |archive-date=March 16, 2006 }}</ref> but instead pulled out of the program in favor of retaining the proven [[AGM-84H/K SLAM-ER]].<ref name="did" />

=== Foreign sales ===

==== Australia ====
In 2006 the Australian government announced the selection of the Lockheed Martin JASSM to equip the [[Royal Australian Air Force]]'s [[F/A-18 Hornet]] fighters.<ref>{{cite web|author1=Defense Industry Daily|title=Australia Chooses JASSM Missiles on F-18s for Long-Range Strike|url=http://www.defenseindustrydaily.com/australia-chooses-jassm-missiles-on-f18s-for-longrange-strike-updated-01966/|access-date=26 December 2015|date=28 May 2014|archive-url=https://web.archive.org/web/20160304132806/http://www.defenseindustrydaily.com/australia-chooses-jassm-missiles-on-f18s-for-longrange-strike-updated-01966/|archive-date=4 March 2016|url-status=live}}</ref> This announcement came as part of a program to phase out the RAAFs [[F-111C]] strike aircraft, replacing the [[AGM-142 Popeye]] stand off missile and providing a long-range strike capability to the Hornets. JASSM was selected over the SLAM-ER after the European [[KEPD 350|Taurus KEPD 350]] withdrew its tender offer, despite the KEPD 350 being highly rated in the earlier RFP process, due to their heavy involvement in the series preparation for the German Air Force, their troop trials in South Africa and their final negotiations with the Spanish Air Force which finally led to a contract.<ref>{{cite web |last=Muir |first=Tom |date=1 August 2007 |title=ADM: ADF Weapons: Was JASSM the right choice? |url=http://www.australiandefence.com.au/F030B8C0-F806-11DD-8DFE0050568C22C9 |url-status=live |archive-url=https://web.archive.org/web/20150923180302/http://www.australiandefence.com.au/F030B8C0-F806-11DD-8DFE0050568C22C9 |archive-date=23 September 2015 |access-date=8 October 2015 |website=Australian Defence Magazine}}</ref> As of mid-2010 the JASSM was in production for Australia and was planned then to enter service soon.<ref name="Pittaway" />{{update after|2023|9|26}}

In September 2021, [[Australia]]n Prime Minister [[Scott Morrison]] announced that Australia would acquire the JASSM-ER for the RAAF's F/A-18F Super Hornet and F-35A fighters.<ref>{{cite press release |author1=Prime Minister |author2=Minister for Defence |author3=Minister for Foreign Affairs |author4=Minister for Women |title=Australia to pursue Nuclear-powered Submarines through new Trilateral Enhanced Security Partnership |url=https://www.pm.gov.au/media/australia-pursue-nuclear-powered-submarines-through-new-trilateral-enhanced-security |website=Prime Minister of Australia |access-date=25 September 2021 |date=16 September 2021 |archive-url=https://web.archive.org/web/20210927191633/https://www.pm.gov.au/media/australia-pursue-nuclear-powered-submarines-through-new-trilateral-enhanced-security |archive-date=27 September 2021 |url-status=live }}</ref>

==== Finland ====
Finland had also previously planned to purchase JASSM missiles for the [[Finnish Air Force]] as part of modernization plans of its F/A-18 Hornet fleet. However, in February 2007 the United States declined to sell the missiles, while agreeing to proceed as planned with other modernization efforts (the so-called Mid-Life Update 2, or MLU2). However, in October 2011 the US DSCA announced that they had given permission for a possible sale to Finland.<ref>{{cite web|title=Finland – AGM-158 Joint Air-to-Surface Standoff Missiles (JASSM)|url=http://www.dsca.mil/sites/default/files/mas/finland_11-37_0.pdf|website=Defense Security Cooperation Agency|access-date=26 December 2015|archive-url=https://web.archive.org/web/20160304101204/http://www.dsca.mil/sites/default/files/mas/finland_11-37_0.pdf|archive-date=4 March 2016|url-status=live}}</ref> An order, valued 178.5 million Euros was placed in March 2012.<ref>{{Cite web |date=1 March 2012 |title=Finland procures a long-range air-to-surface missile system |url=https://www.defmin.fi/en/topical/press_releases_and_news/press_release_archive/2012/finland_procures_a_long-range_air-to-surface_missile_system.4907.news |url-status=live |archive-url=https://web.archive.org/web/20240103221013/https://www.defmin.fi/en/topical/press_releases_and_news/press_release_archive/2012/finland_procures_a_long-range_air-to-surface_missile_system.4907.news |archive-date=3 January 2024 |website=Finnish Ministry of Defence}}</ref> In 2014 it was reported that Lockheed had "received three Finnish integration-related contracts since 2012".<ref name="fg">{{cite web |url=http://www.flightglobal.com/news/articles/lockheed-moves-forward-with-finlands-jassm-integration-394747/ |title=Lockheed moves forward with Finland's JASSM integration |last1=Hemmerdinger |first1=Jon |date=10 January 2014 |website=Flightglobal.com |access-date=26 May 2015 |archive-url=https://web.archive.org/web/20150526024659/http://www.flightglobal.com/news/articles/lockheed-moves-forward-with-finlands-jassm-integration-394747/ |archive-date=26 May 2015 |url-status=live }}</ref> In 2020 Finland decided to procure 200 JASSM-ER missiles.<ref>{{Cite web |title=Finland – F-35 Joint Strike Fighter Aircraft with Air-to-Air Missiles and Air-to-Ground Precision Guided Munitions {{!}} Defense Security Cooperation Agency |url=https://www.dsca.mil/press-media/major-arms-sales/finland-f-35-joint-strike-fighter-aircraft-air-air-missiles-and-air |access-date=2024-02-09 |website=www.dsca.mil}}</ref> Finland's integration work was originally scheduled to be completed by the end of 2016, but didn't complete until March 2018 when Finnish F/A-18 Hornets successfully test fired two JASSM missiles at Naval Air Weapons Station (NAWS) China Lake.<ref>{{Cite web |date=June 25, 2019 |title=Long-Term Development Key to Sustained Air Defense Capability |url=https://ilmavoimat.fi/en/development-of-finlands-air-defence-capability |url-status=live |archive-url=https://web.archive.org/web/20231031150307/https://ilmavoimat.fi/en/development-of-finlands-air-defence-capability |archive-date=31 October 2023 |website=The Finnish Defence Forces}}</ref><ref>{{cite web|url=http://www.puolustusvoimat.fi/portal/puolustusvoimat.fi/!ut/p/c5/vdDNdrIwEAbga-kFtAkhEFjyEwMiASSCsPHAp1UooPWnIFdfv9NVF3XlcWb5nuSZGZCDW3fFV7UtztW-KxqwBLm6YkjVnCmUdCZxDbqBCBGbTyBbqCAFS4hXcX09uOPHOK9hDwXFiNdR79t05CR3eb0OOYVXMbryeTRnce0jn8x9eNKlZBJRw1WuE7t_uf2V_9ICzzdv2gwmZBZKFoP3cyj95KpMPcoZllhoYejG9kIXCyL_n_be-2BOfnL4RxkQZCAnf11DgyoQD7zGfUt5vGVGiWBUDqBmuwo0NMtZ2CRGfvDMvcjzLIafZ2noiZb0UGsK8qps3_p_7Rt8UzWIVIyxLisYQayDtMwQsU5Tg9JklSfcbwdk8y5Lt11hWX5-EZNizHfaLlBCR76ePhGv1hukDGuvm-2OTWn0XoCVuvzUXo-qQTsCXYuEh8zQSzo4vDO8U4YMkTbj2j_6r8ag-GrsxHHK3egYvwflUPadfiJC0aYXp4kKFtq5GQpC3NYzGbq-m8tyl14mH6lZqctiEDhL9s2esqxqYoH0c7JX5Cyokqg-H4KtLORZt70E27X7Arizbzfg0H4d6NwZl796Y3wDfPyKTA!!/dl3/d3/L2dBISEvZ0FBIS9nQSEh/?pcid=a1cc310046738c77a5b7b7786bf3619b |title=Hornet-kalusto saavuttaa suorituskykynsä huipun |date=10 Apr 2015 |publisher=Finnish Defense Forces |access-date=4 Dec 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150904044452/http://www.puolustusvoimat.fi/portal/puolustusvoimat.fi/%21ut/p/c5/vdDNdrIwEAbga-kFtAkhEFjyEwMiASSCsPHAp1UooPWnIFdfv9NVF3XlcWb5nuSZGZCDW3fFV7UtztW-KxqwBLm6YkjVnCmUdCZxDbqBCBGbTyBbqCAFS4hXcX09uOPHOK9hDwXFiNdR79t05CR3eb0OOYVXMbryeTRnce0jn8x9eNKlZBJRw1WuE7t_uf2V_9ICzzdv2gwmZBZKFoP3cyj95KpMPcoZllhoYejG9kIXCyL_n_be-2BOfnL4RxkQZCAnf11DgyoQD7zGfUt5vGVGiWBUDqBmuwo0NMtZ2CRGfvDMvcjzLIafZ2noiZb0UGsK8qps3_p_7Rt8UzWIVIyxLisYQayDtMwQsU5Tg9JklSfcbwdk8y5Lt11hWX5-EZNizHfaLlBCR76ePhGv1hukDGuvm-2OTWn0XoCVuvzUXo-qQTsCXYuEh8zQSzo4vDO8U4YMkTbj2j_6r8ag-GrsxHHK3egYvwflUPadfiJC0aYXp4kKFtq5GQpC3NYzGbq-m8tyl14mH6lZqctiEDhL9s2esqxqYoH0c7JX5Cyokqg-H4KtLORZt70E27X7Arizbzfg0H4d6NwZl796Y3wDfPyKTA%21%21/dl3/d3/L2dBISEvZ0FBIS9nQSEh/?pcid=a1cc310046738c77a5b7b7786bf3619b |archive-date=2015-09-04 }}</ref>

{{blockquote| JASSM is just as much a deterrent capability, as it is a strike capability. It makes the enemy pause and think twice about aggressive action, because it provides precision strike of a wide range of valuable targets. — Senior Finnish official on why Finland needed these missiles<ref>{{cite web |url=http://www.defence24.com/analysis_jassm-for-poland-is-it-worth-to-pay-the-price |title=JASSM for Poland – Is it worth to pay the price? |last1=Sabak |first1=Juliusz |date=6 Nov 2014 |website=Defence24.com |access-date=26 May 2015 |archive-url=https://web.archive.org/web/20150419101905/http://www.defence24.com/analysis_jassm-for-poland-is-it-worth-to-pay-the-price |archive-date=19 April 2015 |url-status=dead }}</ref>}}

==== South Korea ====
In 2013 South Korea sought the JASSM to boost the [[Republic of Korea Air Force|South Korean Air Force's]] striking capability but was refused by Washington. The South Korean government instead turned their attention towards the Taurus [[KEPD 350]] missile.<ref>{{cite web |date=4 April 2013 |title=S.Korea to buy bunker busting missiles from Europe |url=https://www.reuters.com/article/korea-defense-missiles-idUSL3N0CR1D120130404 |url-status=live |archive-url=https://web.archive.org/web/20130704011637/http://www.reuters.com/article/2013/04/04/korea-defense-missiles-idUSL3N0CR1D120130404 |archive-date=4 July 2013 |access-date=16 November 2013 |publisher=Reuters}}</ref><ref>{{cite web|url=http://www.koreaherald.com/view.php?ud=20130705000594|title=Parliament advises review of Taurus, Global Hawk acquisition plan|publisher=www.koreaherald.com|date=5 July 2013|access-date=16 November 2013|archive-url=https://web.archive.org/web/20131103042259/http://www.koreaherald.com/view.php?ud=20130705000594|archive-date=3 November 2013|url-status=live}}</ref>

==== Poland ====
In 2014, Poland requested US Congressional approval for the purchase of the AGM-158 JASSM to extend the [[Penetration fighter|deep penetration strike]] capabilities of their [[F-16]] Block 52+ fighters. Congress approved the sale in early October, and negotiations concluded in early November 2014. Poland signed a $250 million contract to upgrade its F-16s and equip the jets with (AGM-158) JASSM advanced cruise missiles in a ceremony at Poznan AB, Poland, on 11 December 2014.<ref>{{Cite web |date=15 December 2014 |title=JASSMs for Poland |url=https://www.airandspaceforces.com/jassms-for-poland/ |url-status=live |archive-url=https://web.archive.org/web/20230326183227/https://www.airandspaceforces.com/jassms-for-poland/ |archive-date=26 March 2023 |website=Air & Space Forces Magazine}}</ref><ref>{{Cite web |date=11 December 2014 |title=Umowa na JASSM dla Polski podpisana |url=https://defence24.pl/sily-zbrojne/umowa-na-jassm-dla-polski-podpisana |url-status=live |archive-url=https://web.archive.org/web/20230130170100/https://defence24.pl/sily-zbrojne/umowa-na-jassm-dla-polski-podpisana |archive-date=30 January 2023 |website=Defence24 |language=Polish}}</ref><ref>{{Cite web |date=15 December 2014 |title=Poland Signs JASSM Contract |url=https://www.defense-aerospace.com/poland-signs-250m-contract-for-jassm-f-16-upgrade/ |url-status=live |archive-url=https://archive.today/20240105020432/https://www.defense-aerospace.com/poland-signs-250m-contract-for-jassm-f-16-upgrade/ |archive-date=5 January 2024 |website=Defense-Aerospace}}</ref> The missiles are expected to enter operational service in 2017, and Poland is contemplating an additional purchase for the long-range JASSM-ER version.<ref>{{Cite web |last=Glowacki |first=Bartosz |date=5 November 2014 |title=Poland concludes JASSM purchase for F-16 fleet |url=https://www.flightglobal.com/poland-concludes-jassm-purchase-for-f-16-fleet/115037.article |url-status=live |archive-url=https://web.archive.org/web/20210410183101/https://www.flightglobal.com/poland-concludes-jassm-purchase-for-f-16-fleet/115037.article |archive-date=10 April 2021 |website=Flight Global}}</ref> In December 2015 the production contract for Lot 13 was signed. The contract includes 140 JASSMs for Finland, Poland and the US, 140 JASSM-ER missiles for the US, and data, tooling and test equipment. It is said to be the last production lot that will include non-ER versions. Poland's first modified F-16s should be ready by 2017, when the first missiles are delivered. The work is scheduled to be complete by June 29, 2019.<ref name=":0">{{cite web |url=http://www.airforce-technology.com/news/newslockheed-martin-wins-302m-jassm-contract-4745055 |title=Lockheed Martin wins $302m JASSM contract |date=4 Dec 2015 |website=Airforce-technology.com |access-date=4 Dec 2015 |archive-url=https://web.archive.org/web/20151207111313/http://www.airforce-technology.com/news/newslockheed-martin-wins-302m-jassm-contract-4745055 |archive-date=7 December 2015 |url-status=live }}</ref>{{Unreliable source?|reason=domain on WP:BLACKLIST|date=June 2016}} In November 2016, The U.S. State Department approved the possible sale of 70 AGM-158B JASSM-ER to Poland.<ref name=":1">{{cite web |date=28 November 2016 |title=Poland – JASSM-ER with Support |url=https://www.dsca.mil/major-arms-sales/poland-jassm-er-support |url-status=live |archive-url=https://web.archive.org/web/20190204014811/https://www.dsca.mil/major-arms-sales/poland-jassm-er-support |archive-date=4 February 2019 |access-date=3 February 2019 |website=Defense Security Cooperation Agency}}</ref> As of March 2024, the US State Department approved a potential sale of up to 821 additional AGM-158B-2 JASSM-ER All-Up-Rounds and various additional support equipment to the Polish Government for $1.77 billion.<ref name=":2">{{Cite web |title=Poland – AGM-158B-2 Joint Air-to-Surface Standoff Missile with Extended Range All-Up-Rounds {{!}} Defense Security Cooperation Agency |url=https://www.dsca.mil/press-media/major-arms-sales/poland-agm-158b-2-joint-air-surface-standoff-missile-extended-range |access-date=2024-03-12 |website=www.dsca.mil}}</ref>

====Japan====
In its {{ill|2019 Mid-term Defense Program|ja|中期防衛力整備計画 (2019)}}, the Japanese government introduced a plan to purchase JASSM-ER and the [[AGM-158C LRASM]] for use in its [[F-15J]] fleet.<ref>{{cite news |last=Gady |first=Franz-Stefan |date=4 February 2020 |title=Japan's Ministry of Defense Confirms Plans to Procure New Stand-off Missiles |url=https://thediplomat.com/2020/02/japans-ministry-of-defense-confirms-plans-to-procure-new-stand-off-missiles/ |url-status=live |archive-url=https://web.archive.org/web/20230617094419/https://thediplomat.com/2020/02/japans-ministry-of-defense-confirms-plans-to-procure-new-stand-off-missiles/ |archive-date=17 June 2023 |access-date=29 August 2023 |newspaper=The Diplomat}}</ref>

Acquisition of up to 50 JASSM-ER was approved by the US State Department in August 2023.<ref>{{cite web |date=28 August 2023 |title=Japan – Joint Air-to-Surface Standoff Missiles with Extended Range (JASSM-ER) |url=https://www.dsca.mil/press-media/major-arms-sales/japan-joint-air-surface-standoff-missiles-extended-range-jassm-er |url-status=live |archive-url=https://web.archive.org/web/20230829110334/https://www.dsca.mil/press-media/major-arms-sales/japan-joint-air-surface-standoff-missiles-extended-range-jassm-er |archive-date=29 August 2023 |access-date=29 August 2023 |website=Defense Security Cooperation Agency}}</ref> On the other hand, due to the modifications plan needed for F-15Js to equip these missiles going over budget, LRASM was dropped in 2021 in favor of the improved version (in development) of their home-made [[Type 12 surface-to-ship missile]].<ref>{{Cite web |last=Kaneko |first=Reito |date=6 August 2021 |title=Japan scraps plan to obtain U.S.-made anti-ship missiles for F-15s |url=https://www.japantimes.co.jp/news/2021/08/06/national/f15-missile-plan/ |url-status=live |archive-url=https://web.archive.org/web/20221225104901/https://www.japantimes.co.jp/news/2021/08/06/national/f15-missile-plan/ |archive-date=25 December 2022 |access-date=5 January 2024 |website=The Japan Times}}</ref><ref>{{cite news|url=https://www.yomiuri.co.jp/politics/20210803-OYT1T50505/|title=F-15s' Air-to-Ship Missiles Are Not Coming; U.S. Requests a Large Increase in Modification Costs|language=ja|newspaper=Yomiuri Shimbun|date=4 August 2021|access-date=29 August 2023|archive-date=7 August 2021|archive-url=https://web.archive.org/web/20210807070609/https://www.yomiuri.co.jp/politics/20210803-OYT1T50505/|url-status=live}}</ref>

== Improved JASSM versions ==

=== AGM-158B JASSM-ER ===
The [[US Air Force]] studied various improvements to the AGM-158, resulting in the development of the JASSM-Extended Range (JASSM-ER), which received the designation AGM-158B in 2002. Using a more efficient engine and larger fuel volume in an airframe with the same external dimensions as the JASSM, the JASSM-ER is intended to have a range of over {{cvt|575|mi|km}} compared to the JASSM's range of about {{cvt|230|mi|km}}. Other possible improvements were studied but ultimately not pursued, including a [[submunition]] dispenser warhead, new types of homing head, and a new engine giving ranges in excess of {{cvt|620|mi|km}}. The JASSM-ER has 70% hardware commonality and 95% software commonality with the original AGM-158 JASSM.<ref name="GAO-13-294SP">{{cite web |url=http://www.gao.gov/assets/660/653379.pdf |title=GAO-13-294SP DEFENSE ACQUISITIONS Assessments of Selected Weapon Programs |publisher=US Government Accountability Office |date=March 2013 |access-date=26 May 2013 |pages=81–2 |archive-url=https://web.archive.org/web/20130414092033/http://www.gao.gov/assets/660/653379.pdf |archive-date=14 April 2013 |url-status=live}}</ref>

The first flight test of the JASSM-ER occurred on May 18, 2006 when a missile was launched from a U.S. Air Force [[B-1 Lancer|B-1]] bomber at the [[White Sands Missile Range]] in [[New Mexico]]. The initial platform for the JASSM-ER is the B-1.<ref>{{Cite web |last=Pappalardo |first=Joe |date=9 April 2012 |title=B-1 Pilots Turn Their Bombsights to the Pacific |url=https://www.popularmechanics.com/military/a7503/b-1-pilots-turn-their-bombsights-to-the-pacific-7962209/ |url-status=live |archive-url=https://web.archive.org/web/20120411202552/http://www.popularmechanics.com/technology/military/planes-uavs/b-1-pilots-turn-their-bombsights-to-the-pacific-7962209?click=pm_news |archive-date=11 April 2012 |website=Popular Mechanics}}</ref> While both the original JASSM and the JASSM-ER are several inches too long to be carried in the internal weapons bay of the [[F-35 Lightning II]], the F-35 will be able to carry both missiles externally, which would compromise the aircraft's stealth features.<ref>{{Cite web |last=Croft |first=John |date=4 June 2010 |title=USAF sets 2013 entry for extended-range JASSM |url=http://www.flightglobal.com/articles/2010/06/04/342713/usaf-sets-2013-entry-for-extended-range-jassm.html |url-status=dead |archive-url=https://web.archive.org/web/20100611014312/http://www.flightglobal.com/articles/2010/06/04/342713/usaf-sets-2013-entry-for-extended-range-jassm.html |archive-date=11 June 2010 |access-date=9 December 2010 |website=Flight Global}}</ref>

The JASSM-ER entered service with the USAF in April 2014. Although the B-1 was initially the only aircraft able to deploy it, it was later integrated onto the B-52, F-15E, and F-16;<ref>{{Cite web |date=8 April 2014 |title=US Air Force Takes Delivery of First Production Lot of the JASSM ER Cruise Missile |url=http://www.deagel.com/news/US-Air-Force-Takes-Delivery-of-First-Production-Lot-of-the-JASSM-ER-Cruise-Missile_n000012567.aspx |url-status=dead |archive-url=https://web.archive.org/web/20140410031309/http://www.deagel.com/news/US-Air-Force-Takes-Delivery-of-First-Production-Lot-of-the-JASSM-ER-Cruise-Missile_n000012567.aspx |archive-date=10 April 2014 |website=deagel.com}}</ref> the B-1B can carry a full load of 24 JASSM-ERs, the B-2 16 missiles,<ref>{{Cite web |last=Wollenberg |first=Tech. Sgt. Robert |date=8 September 2010 |title=B-1 carries first full JASSM load |url=https://www.dyess.af.mil/News/Article-Display/Article/268501/b-1-carries-first-full-jassm-load/ |url-status=live |archive-url=https://archive.today/20240105022846/https://www.dyess.af.mil/News/Article-Display/Article/268501/b-1-carries-first-full-jassm-load/ |archive-date=5 January 2024}}</ref><ref>{{Cite web |last=Rivezzo |first=Airman 1st Class Charles V. |date=9 August 2012 |title=JASSM-ER nears operational employment |url=https://www.af.mil/News/Article-Display/Article/110659/jassm-er-nears-operational-employment/ |url-status=live |archive-url=https://web.archive.org/web/20160324164741/http://www.af.mil/News/ArticleDisplay/tabid/223/Article/110659/jassm-er-nears-operational-employment.aspx |archive-date=24 March 2016 |website=af.mil}}</ref> and the B-52 outfitted with the 1760 Internal Weapons Bay Upgrade (IWBU) is able to carry 20 JASSM-ERs, 8 internally and 12 on external pylons.<ref>{{Cite web |last=Raatz |first=Senior Airman Joseph |date=24 May 2016 |title=Barksdale unit first to train with latest B-52 upgrade |url=https://www.af.mil/News/Article-Display/Article/779747/barksdale-unit-first-to-train-with-latest-b-52-upgrade/ |url-status=live |archive-url=https://web.archive.org/web/20160818105735/http://www.af.mil/News/ArticleDisplay/tabid/223/Article/779747/barksdale-unit-first-to-train-with-latest-b-52-upgrade.aspx |archive-date=18 August 2016 |website=af.mil}}</ref><ref>{{Cite web |last=Kristensen |first=Hans |date=20 October 2015 |title=LRSO: The Nuclear Cruise Missile Mission |url=https://fas.org/publication/lrso-mission/ |url-status=live |archive-url=https://web.archive.org/web/20160712045852/http://fas.org/blogs/security/2015/10/lrso-mission/ |archive-date=12 July 2016 |website=Federation of American Scientists}}</ref><ref>{{Cite web |last1=May |first1=T.J. |last2=Pietrucha |first2=Mike |date=22 June 2016 |title=We Already Have an Arsenal Plane: It's Called the B-52 |url=https://warontherocks.com/2016/06/we-already-have-an-arsenal-plane-its-called-the-b-52/ |url-status=live |archive-url=https://web.archive.org/web/20160623145602/http://warontherocks.com/2016/06/we-already-have-an-arsenal-plane-its-called-the-b-52/ |archive-date=23 June 2016 |website=War on the Rocks}}</ref> It is also carried on [[U.S. Navy]] [[F/A-18E/F Super Hornet]] and F-35C fighters.<ref>{{Cite web |date=16 June 2021 |title=US Navy plans to arm F/A-18E/F and F-35C with US Air Force JASSM-ER cruise missile |url=https://www.airrecognition.com/index.php/news/defense-aviation-news/2021/june-2021/7390-us-navy-plans-to-arm-f-a-18e-f-and-f-35c-with-us-air-force-jassm-er-cruise-missile.html |url-status=live |archive-url=https://web.archive.org/web/20230411060516/https://www.airrecognition.com/index.php/news/defense-aviation-news/2021/june-2021/7390-us-navy-plans-to-arm-f-a-18e-f-and-f-35c-with-us-air-force-jassm-er-cruise-missile.html |archive-date=11 April 2023 |website=Air Recognition}}</ref> The Air Force approved full-rate production of the JASSM-ER in December 2014.<ref>{{Cite web |date=15 December 2014 |title=US Air Force Approves Full Rate Production for JASSM-ER Cruise Missile |url=http://www.deagel.com/news/US-Air-Force-Approves-Full-Rate-Production-for-JASSM-ER-Cruise-Missile_n000013454.aspx |url-status=dead |archive-url=https://web.archive.org/web/20141216221259/http://www.deagel.com/news/US-Air-Force-Approves-Full-Rate-Production-for-JASSM-ER-Cruise-Missile_n000013454.aspx |archive-date=16 December 2014 |website=deagel.com}}</ref> Integration of the JASSM-ER onto the B-52 and F-16 was expected to wrap up in 2018, with the F-15E completed after that;<ref>{{Cite web |last=Drew |first=James |date=23 November 2015 |title=Vintage Boeing B-52 gets new long-range Lockheed cruise missile |url=https://www.flightglobal.com/vintage-boeing-b-52-gets-new-long-range-lockheed-cruise-missile/118987.article |url-status=live |archive-url=https://web.archive.org/web/20151125043010/https://www.flightglobal.com/news/articles/vintage-boeing-b-52-gets-new-long-range-lockheed-cru-419398/ |archive-date=25 November 2015 |website=Flight Global}}</ref> it was announced that the JASSM-ER achieved full operational capability on the F-15E in February 2018.<ref>{{Cite web |date=6 February 2018 |title=Lockheed Martin's JASSM-ER Declared Operational on F-15E Strike Eagle |url=https://news.lockheedmartin.com/2018-02-06-Lockheed-Martins-JASSM-R-ER-Declared-Operational-on-F-15E-Strike-Eagle |url-status=live |archive-url=https://web.archive.org/web/20231003011202/https://news.lockheedmartin.com/2018-02-06-Lockheed-Martins-JASSM-R-ER-Declared-Operational-on-F-15E-Strike-Eagle |archive-date=3 October 2023 |website=Lockheed Martin}}</ref> Lot 15 production contract, awarded in June 2017 was the first consisting entirely JASSM-ER.<ref>{{cite web |url=https://insidedefense.com/insider/air-force-lockheed-ink-deal-first-entirely-jassm-er-lot |title=Air Force, Lockheed ink deal for first entirely JASSM-ER lot |last=Karas |first=Rachel |date=2017-06-02 |publisher=Inside Defense |access-date=2017-06-06 |archive-url=https://web.archive.org/web/20180212084643/https://insidedefense.com/insider/air-force-lockheed-ink-deal-first-entirely-jassm-er-lot |archive-date=2018-02-12 |url-status=live}}</ref>

On 14 May 2015, the head of the [[Air Force Research Laboratory]] nominated the JASSM-ER as the optimal air vehicle to carry the [[Counter-electronics High Power Microwave Advanced Missile Project]] (CHAMP) payload. CHAMP is an [[electronic warfare]] technology that fries electronic equipment with bursts of [[high-power microwave]] energy, non-kinetically destroying them. The JASSM-ER was chosen because it is an operational system, so CHAMP is to be miniaturized into the operationally relevant system.<ref>{{Cite web |last=Drew |first=James |date=14 May 2015 |title=USAF nominates JASSM missile to host new computer-killing weapon |url=https://www.flightglobal.com/usaf-nominates-jassm-missile-to-host-new-computer-killing-weapon/116862.article |url-status=live |archive-url=https://web.archive.org/web/20150519015359/http://www.flightglobal.com/news/articles/usaf-nominates-jassm-missile-to-host-new-computer-killing-412348/ |archive-date=19 May 2015 |website=Flight Global}}</ref>

In November 2019, the Air Force retired the [[AGM-86 ALCM#AGM-86C/D|AGM-86C/D]] air-launched cruise missile, a conventional warhead-equipped version of the nuclear-tipped ALCM, with its role replaced by the JASSM-ER.<ref>{{Cite web |last=Everstine |first=Brian W. |date=26 November 2019 |title=Conventional Air-Launched Cruise Missile Ends Service |url=https://www.airandspaceforces.com/Conventional-Air-Launched-Cruise-Missile-Ends-Service/ |url-status=live |archive-url=https://web.archive.org/web/20230425015012/https://www.airandspaceforces.com/conventional-air-launched-cruise-missile-ends-service/ |archive-date=25 April 2023 |website=Air & Space Forces Magazine}}</ref><ref>{{Cite web |last=Rogoway |first=Tyler |date=24 November 2019 |title=The AGM-86C Cruise Missile That Introduced GPS Guided Weaponry Is Bowing Out Of Service |url=https://www.thedrive.com/the-war-zone/31182/the-agm-86c-cruise-missile-that-introduced-gps-guided-weaponry-is-bowing-out-of-service |url-status=live |archive-url=https://web.archive.org/web/20231221111049/https://www.thedrive.com/the-war-zone/31182/the-agm-86c-cruise-missile-that-introduced-gps-guided-weaponry-is-bowing-out-of-service |archive-date=21 December 2023 |website=The Drive}}</ref>

In 2021 AGM-158A procurement was concluded in lot 16.<ref name=":3">{{cite web |date=December 2022 |title=Selected Acquisition Report (SAR) Joint Air-to-Surface Standoff Missile (JASSM) FY 2024 President's Budget |url=https://www.esd.whs.mil/Portals/54/Documents/FOID/Reading%20Room/Selected_Acquisition_Reports/FY_2022_SARS/JASSM-ER_SAR_DEC_2022.pdf |website=Executive Services Directorate}}</ref> Additionally in 2021 a contract was awarded for [[Low rate initial production|low-rate initial production]] of the AGM-158B-2 as part of Lot 19 with deliveries beginning in 2024.<ref>{{Cite web |last=Everstine |first=Brian W. |date=14 February 2020 |title=USAF to Start Buying 'Extreme Range' JASSMs in 2021 |url=https://www.airandspaceforces.com/usaf-to-start-buying-extreme-range-jassms-in-2021/ |url-status=live |archive-url=https://web.archive.org/web/20230415214851/https://www.airandspaceforces.com/usaf-to-start-buying-extreme-range-jassms-in-2021/ |archive-date=15 April 2023 |website=Air & Space Forces Magazine}}</ref> The AGM-158B-2 features a wing restructure, a new missile control unit, code rewritten in [[C++]], a different paint coating, an electronic safe and arm fuse, secure GPS receiver, and program protection requirements at a unit cost of $1.6 million. Future variants are also under development, the AGM-158B-3 will further upgrade the GPS receiver with [[GPS Block III#Military (M-code)|M-Code]] capabilities and the AGM-158D will enhance performance with new wing and chine designs, the integration of a line of sight and beyond line of sight Weapon Data Link (WDL) for post-launch retargeting capability, and software updates for increased survivability.<ref name=":3" /><ref name="auto1"/><ref>{{cite web |date=December 31, 2021 |title=JOINT AIR TO SURFACE STANDOFF MISSILE (JASSM) Selected Acquisition Report (SAR) AS OF THE FY 2023 PRESIDENT'S BUDGET |url=https://www.esd.whs.mil/Portals/54/Documents/FOID/Reading%20Room/Selected_Acquisition_Reports/FY_2021_SARS/22-F-0762_JASSM_ER_SAR_2021.pdf |website=Executive Services Directorate}}</ref>

=== AGM-158C LRASM ===
{{Main|AGM-158C LRASM}}

The JASSM-ER is also the basis for AGM-158C Long Range Anti-Ship Missile, which is a JASSM-ER with a new seeker.<ref>{{Cite web |last=Majumdar |first=Dave |date=11 July 2013 |title=Lockheed LRASM completes captive carry tests |url=http://www.flightglobal.com/blogs/the-dewline/2013/07/lockheed-lrasm-completes-capti.html |url-status=dead |archive-url=https://web.archive.org/web/20130716033145/http://www.flightglobal.com/blogs/the-dewline/2013/07/lockheed-lrasm-completes-capti.html |archive-date=16 July 2013 |access-date=12 July 2013 |website=Flight Global}}</ref> The Air Force used the [[B-1 Lancer]] to complete a captive carry test of an LRASM to ensure the bomber can carry it, as both missiles use the same airframe. The LRASM was not originally planned to be deployed on the B-1, being intended solely as a technology demonstrator,<ref>{{Cite web |last=Rivezzo |first=Senior Airman Charles V. |date=15 July 2013 |title=B-1 test squadron demonstrates anti-ship missile |url=https://www.acc.af.mil/News/Article/199400/b-1-test-squadron-demonstrates-anti-ship-missile/ |url-status=live |archive-url=https://archive.today/20240105025125/https://www.acc.af.mil/News/Article/199400/b-1-test-squadron-demonstrates-anti-ship-missile/ |archive-date=5 January 2024 |website=Air Combat Command}}</ref> but in February 2014 the Pentagon authorized the LRASM to be integrated onto air platforms, including the Air Force B-1, as an operational weapon to address the needs of the Navy and Air Force to have a modern anti-ship missile.<ref>{{cite web |url=http://news.usni.org/2014/03/13/navy-hold-contest-new-anti-surface-missile |title=Navy to Hold Contest for New Anti-Surface Missile |last1=Majumdar |first1=Dave |date=13 March 2014 |publisher=U.S. Naval Institute |access-date=13 March 2014 |archive-url=https://web.archive.org/web/20140313204447/http://news.usni.org/2014/03/13/navy-hold-contest-new-anti-surface-missile |archive-date=13 March 2014 |url-status=live}}</ref> In August 2015, the Navy officially designated the air-launched LRASM as '''AGM-158C'''.<ref>{{Cite web |date=24 August 2015 |title=Lockheed Martin's LRASM Anti-Ship Missile Just Got its U.S. Navy Designation: AGM-158C |url=http://www.navyrecognition.com/index.php?option=com_content&view=article&id=3034 |url-status=live |archive-url=https://web.archive.org/web/20150831024133/http://www.navyrecognition.com/index.php?option=com_content&task=view&id=3034 |archive-date=31 August 2015 |website=Navy Recognition}}</ref> The LRASM achieved Early Operational Capability on the B-1B in December 2018.<ref>{{Cite web |last=Reim |first=Garrett |date=20 December 2018 |title=Lockheed Martin delivers first Long Range Anti-Ship Missiles |url=https://www.flightglobal.com/fixed-wing/lockheed-martin-delivers-first-long-range-anti-ship-missiles-/130757.article |url-status=live |archive-url=https://web.archive.org/web/20181221134517/https://www.flightglobal.com/news/articles/lockheed-martin-delivers-first-long-range-anti-ship-454597/ |archive-date=21 December 2018 |website=Flight Global}}</ref>

=== Palletized JASSM (Rapid Dragon) ===
{{Main|Rapid Dragon}}
In 2020 and 2021, the Air Force Research Laboratory and Lockheed developed and tested Rapid Dragon, a palletized multiple AGM-158 launcher module to be [[airdrop]]ped by [[C-130]] or [[C-17]] cargo planes as a low cost method of rapidly providing a surge of mass fired JASSMs using unmodified airlift assets.<ref>{{Cite web |last=Hollings |first=Alex |date=28 June 2022 |title=Rapid Dragon: Turning America's cargo planes into missile-packed arsenal ships |url=https://www.sandboxx.us/blog/rapid-dragon-turning-americas-cargo-planes-in-missile-packed-arsenal-ships/ |url-status=dead |archive-url=https://web.archive.org/web/20230411060515/https://www.sandboxx.us/blog/rapid-dragon-turning-americas-cargo-planes-in-missile-packed-arsenal-ships/ |archive-date=11 April 2023 |website=sandboxx.us}}</ref> This is especially useful for air forces besides the USAF who do not have dedicated bombers capable of carrying large numbers of ALCMs.<ref>{{Cite web |last=Johnson |first=Reuben F. |date=17 June 2023 |title=Rapid Dragon: A Game-changer in Stand-Off Weapons Delivery |url=https://www.ainonline.com/aviation-news/defense/2023-06-17/rapid-dragon-game-changer-stand-weapons-delivery |url-status=live |archive-url=https://web.archive.org/web/20231011054341/https://www.ainonline.com/aviation-news/defense/2023-06-17/rapid-dragon-game-changer-stand-weapons-delivery |archive-date=11 October 2023 |website=Aviation International News}}</ref>

On 9 November 2022, Rapid Dragon was demonstrated off [[Norway]] in the [[Norwegian Sea]] at the [[Andøya Space|Andøya Space Defense Range]] using a [[MC-130J Commando II]] from the [[352nd Special Operations Wing]] ([[67th Special Operations Squadron]]), as part of Exercise Atreus.<ref>{{Cite web |last=Losey |first=Stephen |date=10 November 2022 |title=Watch this US Air Force cargo plane launch a cruise missile in Norway |url=https://www.defensenews.com/air/2022/11/10/watch-this-us-air-force-cargo-plane-launch-a-cruise-missile-in-norway/ |url-status=live |archive-url=https://archive.today/20240105031102/https://www.defensenews.com/air/2022/11/10/watch-this-us-air-force-cargo-plane-launch-a-cruise-missile-in-norway/ |archive-date=5 January 2024 |website=Defense News}}</ref>

=== AGM-158D JASSM-D / AGM-158 XR ===
In 2024, Lockheed Martin unveiled a concept for a longer range version of the AGM-158 dubbed the AGM-158 XR (eXtreme Range). The AGM-158 XR is longer in order to fit more fuel. The project is currently in development and is “several years out” from fielding.<ref>{{Cite web |last=Saballa |first=Joe |date=2024-09-17 |title=Lockheed Unveils 'Extreme Range' Variant of JASSM Cruise Missile |url=https://thedefensepost.com/2024/09/17/lockheed-extreme-range-jassm/ |access-date=2024-09-18 |website=The Defense Post |language=en-US}}</ref> It can be carried on bombers and by fighters including the F-35, F-15, and F/A-18, but due to the missile's larger size and heavier weight it cannot be carried by lighter fighters like the F-16. It is speculated that the JASSM-XR's range could be around {{cvt|1000|mi}}.<ref>[https://breakingdefense.com/2024/09/lockheed-announces-new-extreme-range-version-of-jassm-cruise-missile/ Lockheed announces new ‘extreme range’ version of JASSM cruise missile]. ''Breaking Defense''. 16 September 2024.</ref><ref>[https://www.nationaldefensemagazine.org/articles/2024/9/16/lockheed-unveils-extreme-range-missile-project AFA News: Lockheed Unveils ‘Extreme Range’ Missile Project]. ''National Defense Magazine''. 16 September 2024.</ref><ref>[https://www.airandspaceforces.com/lockheed-jassm-lrasm-missiles-contract-extreme-range/ Lockheed Gets $3.5 Billion for JASSM/LRASM Missiles as It Eyes ‘Extreme Range’ Variant]. ''Air & Space Forces Magazine''. 30 September 2024.</ref> In 2018 the AGM-158 XR was designated as AGM-158D JASSM-D.<ref>{{Cite web |last=McCullough |first=Amy |date=2019-10-01 |title=USAF Inks Munitions Contracts, Eyes "JASSM-D" in Bigger Missile Buy |url=https://www.airandspaceforces.com/USAF-Inks-Munitions-Contracts-Eyes-JASSM-D-in-Bigger-Missile-Buy/ |access-date=2025-01-10 |website=Air & Space Forces Magazine |language=en-US}}</ref>

== Operational history ==
The JASSM was first employed during the 14 April [[2018 missile strikes against Syria]] during the [[Syrian Civil War]]. Two B-1 Lancers fired a total of 19 JASSMs as part of strikes against three Syrian government alleged [[chemical weapons]] targets.<ref>{{cite web |last1=Rogoway |first1=Tyler |last2=Trevithick |first2=Joseph |date=13 April 2018 |title=United States, France, And UK Begin Air Strikes On Syria (Updating Live) |url=http://www.thedrive.com/the-war-zone/20055/united-states-france-and-uk-begin-air-strikes-on-syria-updating-live |url-status=live |archive-url=https://web.archive.org/web/20190224113123/http://thedrive.com/the-war-zone/20055/united-states-france-and-uk-begin-air-strikes-on-syria-updating-live |archive-date=24 February 2019 |access-date=3 February 2019 |website=The Drive}}</ref><ref>{{Cite web |last=Sisk |first=Richard |date=14 April 2018 |title=Navy Vessels, B-1s Obliterate 3 Syrian Targets in Strike |url=https://www.military.com/daily-news/2018/04/14/navy-vessels-b-1s-obliterate-3-syrian-targets-strike.html |url-status=live |archive-url=https://web.archive.org/web/20230416135158/https://www.military.com/daily-news/2018/04/14/navy-vessels-b-1s-obliterate-3-syrian-targets-strike.html |archive-date=16 April 2023 |website=military.com}}</ref><ref>{{Cite web |last1=Mehta |first1=Aaron |last2=Copp |first2=Tara |date=14 April 2018 |title=Coalition launched 105 weapons against Syria, with none intercepted, DoD says |url=https://www.militarytimes.com/pentagon/2018/04/14/us-launched-105-weapons-against-syria-with-none-intercepted-dod-says/ |url-status=live |archive-url=https://web.archive.org/web/20230917231124/https://www.militarytimes.com/pentagon/2018/04/14/us-launched-105-weapons-against-syria-with-none-intercepted-dod-says/ |archive-date=17 September 2023 |website=Military Times}}</ref> All 19 JASSM missiles were fired at the Barzah Research Center, which was destroyed in the strike.<ref>{{cite web |date=16 April 2018 |title=US-led strikes on Syria: What was hit? |url=https://www.bbc.com/news/world-middle-east-43769332 |url-status=live |archive-url=https://web.archive.org/web/20180415012947/http://www.bbc.com/news/world-middle-east-43769332 |archive-date=15 April 2018 |access-date=3 February 2019 |website=BBC.com}}</ref> According to Russian state media, two missiles that failed to detonate were found by the [[Syrian Arab Army]] and transferred to Russia on 18 April for study – no evidence of this claim has been provided;<ref>{{cite web |url=https://ria.ru/syria_chronicle/20180419/1518959404.html |title=Эксперт рассказал, как Россия использует найденные в Сирии ракеты США |date=19 April 2018 |publisher=RIA Novosti |access-date=19 April 2018 |archive-url=https://web.archive.org/web/20180419104144/https://ria.ru/syria_chronicle/20180419/1518959404.html |archive-date=19 April 2018 |url-status=live }}</ref> initial reports had stated JASSM-ER missiles were used, but it was later clarified that baseline JASSM models were employed.<ref>{{cite web|url=https://www.military.com/defensetech/2018/04/17/us-may-ramp-buy-missile-just-made-combat-debut-syria.html|title=US May Ramp Up Buy of the Missile That Just Made Combat Debut in Syria|first=Oriana|last=Pawlyk|date=17 April 2018|website=Military.com|access-date=3 February 2019|archive-url=https://web.archive.org/web/20181011120952/https://www.military.com/defensetech/2018/04/17/us-may-ramp-buy-missile-just-made-combat-debut-syria.html|archive-date=11 October 2018|url-status=live}}</ref>

On 27 October 2019, at the end of the [[Death of Abu Bakr al-Baghdadi|Barisha raid]] to capture or kill [[Abu Bakr al-Baghdadi]], the then-leader of the [[Islamic State of Iraq and the Levant]] (ISIL) terror organization, a number of AGM-158B missiles were used to completely level the compound where the raid took place, marking the second time the missile has been used in combat.<ref>{{cite news |last1=Everstine |first1=Brian W. |date=October 28, 2019 |title=JASSMs Used to Level Baghdadi's Compound in Syria |url=https://www.airforcemag.com/JASSMs-Used-to-Level-Baghdadis-Compound-in-Syria/ |url-status=live |archive-url=https://web.archive.org/web/20230920174940/https://www.airandspaceforces.com/jassms-used-to-level-baghdadis-compound-in-syria/ |archive-date=20 September 2023 |access-date=1 September 2021 |work=Air Force Magazine}}</ref> At least 20 AGM-158s were also used during the [[March–May 2025 United States attacks in Yemen]].<ref>{{cite web | url=https://www.nbcnews.com/politics/national-security/trump-operation-houthis-cost-1-billion-rcna205333 | title=Trump operation against Houthis cost more than $1 billion | website=[[NBC News]] | date=9 May 2025 }}</ref>

== Operators ==
[[File:AGM-158 operators.png|thumb|400px|Map with AGM-158 operators in blue]]
[[File:JASSM mockup 0048.jpg|thumb|right|A mock-up display of the AGM-158 JASSM next to an [[Lockheed Martin F-35 Lightning II|F-35]] prototype]]

=== Current operators ===
;{{AUS}}
* [[Royal Australian Air Force]] 260 AGM-158A, 80 AGM-158B-2 delivered
;{{FIN}}
* [[Finnish Air Force]]
;{{POL}}
* [[Polish Air Force]] 40 AGM-158A, 70 AGM-158B, 821 AGM-158B-2 on order<ref name=":0" /><ref name=":1" /><ref name=":2" />
;{{USA}}
* [[United States Air Force]]

=== Future operators ===
;{{GER}}
* [[German Air Force]]<ref>{{Cite web |date=28 July 2022 |title=Germany – F-35 Aircraft and Munitions |url=https://www.dsca.mil/press-media/major-arms-sales/germany-f-35-aircraft-and-munitions |url-status=live |archive-url=https://web.archive.org/web/20231120105536/https://www.dsca.mil/press-media/major-arms-sales/germany-f-35-aircraft-and-munitions |archive-date=20 November 2023 |website=Defense Security Cooperation Agency}}</ref><ref>{{cite web |last=Wiegold |first=Thomas |date=28 July 2022 |title=US-Regierung billigt Verkauf von F-35-Kampfjets an Deutschland – Augen geradeaus! |url=https://augengeradeaus.net/2022/07/us-regierung-billigt-verkauf-von-f-35-kampfjets-an-deutschland/ |url-status=live |archive-url=https://web.archive.org/web/20231216073608/https://augengeradeaus.net/2022/07/us-regierung-billigt-verkauf-von-f-35-kampfjets-an-deutschland/ |archive-date=16 December 2023 |website=Augen geradeaus! |language=de}}</ref>
;{{NED}}
* [[Royal Netherlands Air Force]] 120 AGM-158B/B-2<ref>{{cite web | url=https://www.flightglobal.com/defence/us-clears-1-billion-in-missile-sales-to-the-netherlands/156803.article | title=US clears $1 billion in missile sales to the Netherlands }}</ref><ref>{{Cite web |date=3 April 2023 |title=Defensie versterkt vuurkracht met raketartillerie en langeafstandswapens |trans-title=Army strengthens firepower with rocket artillery and long range weapons |url=https://www.defensie.nl/actueel/nieuws/2023/04/03/defensie-versterkt-vuurkracht-met-raketartillerie-en-langeafstandswapens |url-status=live |archive-url=https://web.archive.org/web/20231105093724/https://www.defensie.nl/actueel/nieuws/2023/04/03/defensie-versterkt-vuurkracht-met-raketartillerie-en-langeafstandswapens |archive-date=5 November 2023 |website=Dutch Ministry of Defence |language=Dutch}}</ref><ref>{{Cite web |last=Helfrich |first=Emma |date=3 April 2023 |title=The Netherlands Is Going To Bet Big On Long-Range Weapons |url=https://www.thedrive.com/the-war-zone/the-netherlands-is-going-to-bet-big-on-long-range-weapons |url-status=live |archive-url=https://web.archive.org/web/20231120060931/https://www.thedrive.com/the-war-zone/the-netherlands-is-going-to-bet-big-on-long-range-weapons |archive-date=20 November 2023 |access-date=5 January 2024 |website=The Drive}}</ref>
;{{JAP}}
* [[Japan Air Self-Defense Force]]<ref>{{cite web |last=Yeo |first=Mike |date=30 August 2023 |title=US State Department approves JASSM-ER missile sale to Japan |url=https://www.defensenews.com/global/asia-pacific/2023/08/30/us-state-department-approves-jassm-er-missile-sale-to-japan/ |url-status=live |archive-url=https://archive.today/20240105032519/https://www.defensenews.com/global/asia-pacific/2023/08/30/us-state-department-approves-jassm-er-missile-sale-to-japan/ |archive-date=5 January 2024 |website=Defense News}}</ref>
** 50 AGM-158B/B-2<ref>{{Cite web|url=https://defence-blog.com/japan-approves-jassm-er-missile-purchase-for-its-f-15j-jets/|title=Japan approves JASSM-ER missile purchase for its F-15J jets|date=10 July 2024 }}</ref>

===Potential operators===
;{{UKR}}
* [[Ukrainian Air Force]] In August 2024, Reuters reported that the United States was close to supplying Ukraine with JASSM missiles, but it would take "months" to deliver. The delay is due to integrating these missiles into Soviet era aircraft and pending final approval.<ref>{{Cite web |title= US close to agreeing on long-range missiles for Ukraine; delivery to take months |url= https://www.reuters.com/world/us-close-agreeing-long-range-missiles-ukraine-delivery-take-months-2024-09-03/ |date=3 September 2024 |author= Mike Stone|author2= Patricia Zengerle |author3=Gerry Doyle |website=Reuters|language=en}}</ref>

== See also ==
* {{lwc|AGM-137 TSSAM}}
* {{lwc|Storm Shadow}}
* {{lwc|Saber (cruise missile)|Saber}}
* {{lwc|Taurus KEPD 350}}
* [[Ra'ad (air-launched cruise missile)]]
* {{lwc|SOM (missile)|SOM}}
* {{lwc|Wan Chien}}
* [[List of missiles]]

== References ==
{{Reflist}}

== External links ==
{{Commons category}}
* [http://missilethreat.csis.org/missile/jassm/ CSIS Missile Threat – JASSM / JASSM-ER]
* [http://www.lockheedmartin.com/us/products/jassm.html Lockheed Martin JASSM Website]
* [http://www.designation-systems.net/dusrm/m-158.html Lockheed Martin AGM-158 JASSM – Designation Systems]

{{US missiles}}
{{Lockheed Martin}}
{{USAF equipment}}

[[Category:Subsonic missiles]]
[[Category:Cruise missiles]]
[[Category:Air-launched cruise missiles]]
[[Category:Stealth cruise missiles]]
[[Category:Air-to-surface missiles of the United States|AGM-158]]
[[Category:Cruise missiles of the United States]]
[[Category:Weapons and ammunition introduced in 2009]]
[[Category:Lockheed Martin]]