View source for John Mearsheimer

{{Short description|American political scientist (born 1947)}}
{{Independent sources|date=June 2024}}
{{Use American English|date=December 2025}}
{{Use mdy dates|date=June 2021}}
{{Infobox philosopher
|region           = 
|era              = 
|image            = John Mearsheimer.jpg
|caption          = Mearsheimer in 2007
|name             = John Mearsheimer
|birth_date       = {{birth date and age|1947|12|14}}
|birth_place      = New York City, U.S.
|notable_works = 
{{ubl|"[[Why the Soviets Can't Win Quickly in Central Europe]]" (1982)|''[[#Conventional Deterrence|Conventional Deterrence]]'' (1983)|''[[The Tragedy of Great Power Politics]]'' (2001)|''[[The Israel Lobby and U.S. Foreign Policy]]'' (2007)|''[[Why Leaders Lie: The Truth About Lying in International Politics]]'' (2011)|''[[The Great Delusion: Liberal Dreams and International Realities]]'' (2018)}}
|school_tradition = [[Neorealism (international relations)|Neorealism]]
|institutions     = [[University of Chicago]]
|website          = {{URL|mearsheimer.com}}
|main_interests   = [[International relations theory]], [[international security]], [[deterrence theory]]<ref name="mh93" /><ref name="books.google.com.au">{{cite book |url=https://books.google.com/books?id=cV-5AAAAIAAJ |title=Conventional Deterrence |via=Google Books |date=July 17, 1990 |access-date=August 17, 2014 |isbn=9780801415692 |last1=Mearsheimer |first1=John J. |publisher=Cornell University Press |archive-date=May 8, 2022 |archive-url=https://web.archive.org/web/20220508084952/https://books.google.com/books?id=cV-5AAAAIAAJ |url-status=live }}</ref>
|notable_ideas    = [[Offensive realism]]
|education        = [[United States Military Academy]] ([[Bachelor of Science|BS]])<br />[[University of Southern California]] ([[Master of Arts|MA]])<br />[[Cornell University]] ([[Master of Arts|MA]], [[PhD]])
<!--
|allegiance   = {{flag|United States of America}}
|branch       = [[File:Emblem of the United States Department of the Army.svg|25px]] [[United States Army]] <br /> [[File:Seal of the US Air Force.svg|25px]] [[United States Air Force]]
|unit         = 
|serviceyears = 1965–1966 (US Army) <br /> 1970–1975 (US Air Force)
|rank         = [[File:US-O2 insignia.svg|10px]] [[Lieutenant]]-->
|birth_name=John Joseph Mearsheimer}}
'''John Joseph Mearsheimer''' ({{IPAc-en|ˈ|m|ɪər|ʃ|aɪ|m|ər}}; born December 14, 1947)<ref name=":44">{{Cite web |last=Munro |first=André |date=December 10, 2022 |title=John J. Mearsheimer |url=https://www.britannica.com/biography/John-Mearsheimer |access-date=July 11, 2023 |website=[[Encyclopedia Britannica]] |language=en}}</ref> is an American [[Political science|political scientist]] and [[international relations]] scholar. He is the R. Wendell Harrison Distinguished Service Professor of [[Political Science]] at the [[University of Chicago]].<ref>{{Cite web |title=John Mearsheimer {{!}} Department of Political Science |url=https://political-science.uchicago.edu/directory/John-Mearsheimer |access-date=2025-11-25 |website=political-science.uchicago.edu}}</ref>

Mearsheimer is best known for developing the [[Neorealism (international relations)|neorealist]] (or structural realist) theory of [[offensive realism]], which describes the interaction between [[great power]]s as being primarily driven by the [[Rational choice theory|rational desire]] to achieve regional [[hegemony]] in an [[Anarchy (international relations)|anarchic international system]]. In accordance with his theory, in the 2001 book ''[[The Tragedy of Great Power Politics]]'',<ref>{{Cite book |last=Mearsheimer |first=John J. |title=The great delusion: liberal dreams and international realities |date=2018 |publisher=Yale University Press |isbn=978-0-300-23419-0 |series=The Henry L. Stimson lectures series |location=New Haven ; London}}</ref> Mearsheimer says that [[Chinese Century|China's growing power]] will likely bring it into conflict with the United States.

In his 2007 book ''[[The Israel Lobby and U.S. Foreign Policy]]'', Mearsheimer argues that the [[Israel lobby in the United States|Israel lobby]] wields disproportionate influence over [[United States foreign policy in the Middle East|U.S. foreign policy in the Middle East]]. His more recent work focuses on criticism of the "[[liberal international order]]" (laid down in his 2018 book ''[[The Great Delusion|The Great Delusion: Liberal Dreams and International Realities]]'') and why he believes that [[#Ukraine|the West is to blame]] for the [[Russo-Ukrainian War]].

==Early life and education==
Mearsheimer was born on December 14, 1947 in [[Brooklyn]], [[New York City]] as one of five children to Thomas Joseph Mearsheimer (1918–2007) and Ruth Margaret Baumann (1922–2011), in a family of [[Germans|German]] and [[Irish people|Irish]] descent. His father was a [[civil engineer]] and a [[Colonel (United States)|colonel]] in the [[United States Air Force Reserve]]. As a [[United States Military Academy]] graduate, his father served in the [[United States Army Air Corps]] during WWII, and with the Air Force Reserve during the [[Korean War|Korean]] and [[Vietnam War]]s. As a civil engineer, he worked for various railroads and was the chief engineer of the [[Grand Central Terminal|Grand Central]].<ref>{{Cite web |date=August 28, 2007 |title=THOMAS MEARSHEIMER Obituary (2007) |url=https://www.legacy.com/us/obituaries/lohud/name/thomas-mearsheimer-obituary?id=48141221 |access-date=2025-09-03 |website=[[The Journal News]] |publisher= |via=[[Legacy.com]]}}</ref><ref name=":03">"Mearsheimer, John J. 1947– ." [[Contemporary Authors|''Contemporary Authors, New Revision Series'']]. Retrieved September 02, 2025 from [[Encyclopedia.com]]: https://www.encyclopedia.com/arts/educational-magazines/mearsheimer-john-j-1947</ref><ref>{{cite magazine |last=Kaplan |first=Robert D. |date=January–February 2012 |title=Why John J. Mearsheimer Is Right (About Some Things) |url=https://www.theatlantic.com/magazine/archive/2012/01/why-john-j-mearsheimer-is-right-about-some-things/308839/ |url-access=registration |url-status=live |archive-url=https://web.archive.org/web/20121108180004/https://www.theatlantic.com/magazine/archive/2012/01/why-john-j-mearsheimer-is-right-about-some-things/308839/ |archive-date=November 8, 2012 |access-date=January 26, 2024 |magazine=[[The Atlantic]] |quote=One of five children in a family of German and Irish ancestry}}</ref>

When he was eight, Mearsheimer moved with his family to the village of [[Croton-on-Hudson, New York]], a suburb in [[Westchester County, New York]].<ref name="globetrotter.berkeley3">{{cite web |title=Conversation with John Mearsheimer, p. 1 of 7 |url=http://globetrotter.berkeley.edu/people2/Mearsheimer/mearsheimer-con1.html |url-status=live |archive-url=https://web.archive.org/web/20150104193727/http://globetrotter.berkeley.edu/people2/Mearsheimer/mearsheimer-con1.html |archive-date=January 4, 2015 |access-date=August 27, 2014 |publisher=Globetrotter.berkeley.edu}}</ref> When he was 17, he enlisted in the [[United States Army]]. After one year as an enlisted man, he obtained an appointment to the [[United States Military Academy]] at [[West Point, New York]], which he attended from 1966 to 1970. Receiving a [[Bachelor of Science]] degree from the United States Military Academy in 1970, Mearsheimer served five years from 1970 to 1975 in the [[United States Air Force]], rising from a [[Second-in-command|second in command]] [[Lieutenant (United States)|lieutenant]] to the rank of a [[Captain (United States)|captain]] before resigning.<ref name=":44"/><ref>{{Cite journal |year=2006 |title=Conversations in International Relations: Interview with John J. Mearsheimer (Part I) |url=http://mearsheimer.uchicago.edu/pdfs/A0039.pdf |url-status=dead |journal=[[International Relations (journal)|International Relations]] |volume=20 |pages=105–123 |doi=10.1177/0047117806060939 |s2cid=220788933 |archive-url=https://web.archive.org/web/20060527210222/http://mearsheimer.uchicago.edu/pdfs/A0039.pdf |archive-date=May 27, 2006}}</ref><ref>{{Cite journal |year=2006 |title=Conversations in International Relations: Interview with John J. Mearsheimer (Part II) |url=http://mearsheimer.uchicago.edu/pdfs/A0041.pdf |url-status=dead |journal=[[International Relations (journal)|International Relations]] |volume=20 |issue=2 |pages=231–243 |doi=10.1177/0047117806063851 |s2cid=220824794 |archive-url=https://web.archive.org/web/20060910032222/http://mearsheimer.uchicago.edu/pdfs/A0041.pdf |archive-date=September 10, 2006}}</ref> He married Mary T. Cobb in 1970 with whom he has three children, a daughter and two sons.<ref name=":03"/>

In 1974, while in the Air Force, Mearsheimer earned a [[Master of Arts]] in [[international relations]] from the [[University of Southern California]]. Not satisfied with his career at the United States military, he resigned from the Air Force and pursued further graduate studies at [[Cornell University]] in [[Ithaca, New York]], earning a [[Master of Arts]] and a [[Doctor of Philosophy|Ph.D.]] in government in 1978 and 1981, respectively. He concentrated his studies in international relations with a peace studies fellowship from Cornell from 1978 to 1979.<ref name=":44" /><ref name=":03" /> In the summer of 1978, he interned at the [[Arms Control and Disarmament Agency]]. From 1979 to 1980, he was a [[research fellow]] at the [[Brookings Institution]] in [[Washington, DC]], having received a Hubert H. Humphrey doctoral fellowship. From 1980 to 1982, Mearsheimer was a [[postdoctoral fellow]] ([[research associate]]) at [[Harvard University]]'s [[Weatherhead Center for International Affairs|Center for International Affairs]].<ref name=":03"/><ref name=":44"/>

==Career==
Since 1982, Mearsheimer has been a member of the faculty of the Department of Political Science at the Social Science Division at the [[University of Chicago]].<ref>{{cite web |title=Faculty |url=http://political-science.uchicago.edu/people/faculty.shtml |url-status=deviated |archive-url=https://web.archive.org/web/20120217183537/http://political-science.uchicago.edu/people/faculty.shtml |archive-date=February 17, 2012 |website=Department of Political Science, [[University of Chicago]]}}.</ref> He was appointed as [[assistant professor]] in 1982, as [[associate professor]] in 1984, and as [[full professor]] in 1987. He served as chair of the Department of Political Science from 1989 to 1992. He was appointed the R. Wendell Harrison Distinguished Service Professor of Political Science in 1996. He also holds a position as a faculty member in the [[Committee on International Relations]] graduate program, and he is a co-director of the Program on International Security Policy.<ref name="WorldAffairs2">{{cite web |author=Administrator |title=John Mearsheimer |url=http://www.worldaffairs.org/speakers/profile/john-mearsheimer.html |url-status=dead |archive-url=https://web.archive.org/web/20130927135641/http://www.worldaffairs.org/speakers/profile/john-mearsheimer.html |archive-date=September 27, 2013 |access-date=January 15, 2012 |work=worldaffairs.org}}</ref> He is also a member of the [[American Political Science Association]] and served as the co-chairman of its Commission on History, Social Science and International Security Affairs from 1987 to 1990.<ref name=":03" />

Mearsheimer is a member of the [[editorial board]]s of the academic journals [[International Security (journal)|''International Security'']], [[Security Studies (journal)|''Security Studies'']], ''[[Joint Forces Quarterly]]'', ''[[Journal of Transatlantic Studies]]'', ''Asian Security'', ''China Security'', and [[International Relations (journal)|''International Relations'']].<ref name=":03" />

=== Awards and honors ===
Mearsheimer's books include ''Conventional Deterrence'' (1983), which won the [[Edgar S. Furniss Award|Edgar S. Furniss Jr. Book Award]] from the [[Mershon Center for International Security Studies]]; ''Nuclear Deterrence: Ethics and Strategy'' (co-editor, 1985); ''[[Liddell Hart]] and the Weight of History'' (1988); ''[[The Tragedy of Great Power Politics]]'' (2001), which won the [[Lepgold Book Prize]]; ''[[The Israel Lobby and U.S. Foreign Policy]]'' (2007), a [[The New York Times Best Seller list|New York Times Best Seller]]; and ''[[Why Leaders Lie: The Truth About Lying in International Politics]]'' (2011). Mearsheimer's work has been translated into numerous languages, including Chinese, Greek, Portuguese, Arabic, Indonesian, Polish, Spanish, and Turkish.<ref name=":03" />

His articles have appeared in academic journals like ''International Security'' and popular magazines like the ''[[London Review of Books]]''. He has written op-ed pieces for the ''[[The New York Times|New York Times]]'', the ''[[Los Angeles Times]]'', and the ''[[Chicago Tribune]]''.<ref name="WorldAffairs2" />

Mearsheimer has won several teaching awards. He received a grant from the [[American Philosophical Society]] in 1984 and was a [[George Kistiakowsky]] scholar at the [[American Academy of Arts and Sciences]] from 1986 to 1987.<ref name=":03" /> He received the Clark Award for Distinguished Teaching when he was a graduate student at Cornell in 1977, and he won the [[Quantrell Award|Quantrell Award for Excellence in Undergraduate Teaching]] at the University of Chicago in 1985;<ref name="Prize">{{cite web|title=Llewellyn John and Harriet Manchester Quantrell Awards for Excellence in Undergraduate Teaching|url=https://www.uchicago.edu/who-we-are/global-impact/accolades/llewellyn-john-and-harriet-manchester-quantrell-awards-for-excellence-in-undergraduate-teaching|website=UChicago}}</ref> Morris Abrams Award in International Relations, 1980; in addition, he was selected as a [[Phi Beta Kappa]] Visiting Scholar for the 1993–1994 academic year. In that capacity, he gave a series of talks at eight colleges and universities. During the 1998–1999 academic year, he was the [[Whitney Shepardson|Whitney H. Shepardson]] Fellow at the [[Council on Foreign Relations]] in New York City.<ref name="globetrotter.berkeley3"/>

In 2003, Mearsheimer was elected as a member of the American Academy of Arts and Sciences.<ref name="WorldAffairs2" /> He is the recipient of the American Political Science Association's 2020 [[James Madison Award]], which is presented every three years to an American political scientist who has made distinguished scholarly contributions. The Award Committee noted that Mearsheimer is "one of the most cited International Relations scholars in the discipline, but his works are read well beyond the academy as well."<ref>{{Cite web |last1=Scott |first1=Karima |date=September 13, 2020 |title=John J. Mearsheimer Receives the 2020 James Madison Award |url=https://politicalsciencenow.com/john-j-mearsheimer-receives-the-2020-james-madison-award/ |url-status=live |archive-url=https://web.archive.org/web/20201214084444/https://politicalsciencenow.com/john-j-mearsheimer-receives-the-2020-james-madison-award/ |archive-date=December 14, 2020 |access-date=December 14, 2020 |website=politicalsciencenow.com |language=en-US}}</ref> Mearsheimer has been listed as a noteworthy political scientist by [[Marquis Who's Who]] and [[Encyclopædia Britannica]] describes him as a "a prominent American scholar of international relations best known for his theory of offensive realism".<ref name=":44" /> A 2017 survey of US international relations faculty ranks him third among "scholars whose work has had the greatest influence on the field of International Relations in the past 20 years."<ref>{{Cite web |title=2017 Faculty Survey {{!}} Teaching, Research, and International Policy (TRIP) |url=https://trip.wm.edu/data/our-surveys/faculty-survey |url-status=live |archive-url=https://web.archive.org/web/20201121120854/https://trip.wm.edu/data/our-surveys/faculty-survey |archive-date=November 21, 2020 |access-date=December 16, 2020 |website=trip.wm.edu}}</ref>

Mearsheimer received [[honorary doctorates]] from [[Panteion University]] in Greece in June 2011 and from [[University of Oradea]] in Romania in October 2018. He received [[honorary professorships]] from the [[Renmin University of China]] in May 2012, from [[Beijing Foreign Studies University]] in May 2012, and from [[Jinan University]] in October 2019.<ref>{{Cite web |date=2024-05-30 |title=Curriculum Vitae – John J. Mearsheimer |url=https://www.mearsheimer.com/wp-content/uploads/2024/05/CV-JJM.May-30-2024.doc |archive-url=https://web.archive.org/web/20251125191412/https://www.mearsheimer.com/wp-content/uploads/2024/05/CV-JJM.May-30-2024.doc |archive-date=2025-11-25 |access-date=2025-11-25 |website=mearsheimer.com}}</ref>

==Research and major publications==
Mearsheimer popularized the term [[rollback]] to describe the geopolitical strategy of inciting unrest in a rival country while supporting government change covertly or overtly.<ref name=":Wang">{{Cite book |last=Wang |first=Frances Yaping |title=The Art of State Persuasion: China's Strategic Use of Media in Interstate Disputes |publisher=[[Oxford University Press]] |year=2024 |isbn=9780197757512 |pages=24}}</ref>

===''Conventional Deterrence''===
{{Further|Why the Soviets Can't Win Quickly in Central Europe}}
Mearsheimer's first book, ''Conventional Deterrence'' (1983), addresses the issue of how the decision to start a war depends on the projected outcome of the war, in other words, how the decision makers' beliefs about the outcome of the war affect the success or failure of deterrence. Mearsheimer's basic argument is that deterrence is likely to work when the potential attacker believes that an attack will be costly and is unlikely to succeed. However, if the potential attacker has reason to believe the attack will entail low costs and is likely to succeed, deterrence is likely to break down, which is now widely accepted to be how the principle of deterrence works. Specifically, Mearsheimer argues that the success of deterrence is determined by the strategy available to the potential attacker. He lays out three strategies. Firstly, an attrition strategy entails a high level of uncertainty about the outcome of war and high costs for the attacker. Secondly, a limited-aims strategy entails fewer risks and lower costs. Thirdly, a ''[[blitzkrieg]]'' strategy provides a way to defeat the enemy rapidly and decisively with relatively low costs. For Mearsheimer, failures in the modern battlefield are caused mostly by the potential attacker's belief that it can successfully implement a ''blitzkrieg'' strategy in which tanks and other mechanized forces are employed swiftly to cause deep penetration and to disrupt the enemy's rear.<ref>{{cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0006.pdf |url-status=dead |via=mearsheimer.uchicago.edu |title=Why the Soviets Can't Win Quickly in Central Europe |first=John J. |last=Mearsheimer |issn=0162-2889 |journal=[[International Security (journal)|International Security]] |volume=7 |issue=1 |date=Summer 1982|pages=3–39 |doi=10.2307/2538686 |jstor=2538686 |s2cid=154732192 |archive-url=https://web.archive.org/web/20060527205318/http://mearsheimer.uchicago.edu/pdfs/A0006.pdf |archive-date=May 27, 2006 }}; early article version of ''Conventional Deterrence'' chapter, undated.</ref> The two other strategies are unlikely to lead to deterrence failures because they entail a low probability of success, accompanied by high costs ([[attrition warfare]]) or limited gains and the possibility of the conflict turning into a war of attrition ([[Limited war|limited aims]]). However, if the attacker has a coherent ''blitzkrieg'' strategy available, an attack is likely to ensue because its potential benefits outweigh the costs and risks of starting a war.<ref>{{Cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0017.pdf |journal=[[International Security (journal)|International Security]] |volume=15 |issue=1 |date=Summer 1990 |title=Back to the Future |first=John J. |last=Mearsheimer|doi=10.2307/2538981 |jstor=2538981 |s2cid=153793930 |archive-url=https://web.archive.org/web/20060527205600/http://mearsheimer.uchicago.edu/pdfs/A0017.pdf |archive-date=May 27, 2006 }}</ref>

Besides analyzing cases from [[World War II]] and the [[Arab–Israeli conflict]], Mearsheimer's 1983 book extrapolates implications from his theory for the prospects of conventional deterrence in [[Central Europe]] during the late [[Cold War]]. In the chapter "[[Why the Soviets Can't Win Quickly in Central Europe]]" (originally published in 1982 as an article in [[International Security (journal)|''International Security'']]) argues that a [[Soviet Union|Soviet]] attack is unlikely because the Soviet military would be unable to successfully implement a ''blitzkrieg'' strategy. The book argues that the balance of forces, the difficulty of advancing rapidly with mechanized forces through Central Europe, and the formidable [[NATO]] forces opposing such a Soviet attack results in low chances for the Soviets to start a [[conventional war]] in Europe.<ref>{{Cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0014.pdf |first=John J. |last=Mearsheimer |journal=[[The Atlantic|The Atlantic Monthly]] |date=August 1990 |volume=266 |issue=2 |pages=35–50 |title=Why We Will Soon Miss The Cold War |archive-url=https://web.archive.org/web/20060527205510/http://mearsheimer.uchicago.edu/pdfs/A0014.pdf |archive-date=May 27, 2006 |url-status=dead}}</ref>

===''Liddell Hart and the Weight of History''===
Mearsheimer's second book, ''Liddell Hart and the Weight of History'' (1988), reassesses the intellectual legacies of the 20th century British military theorist [[B. H. Liddell Hart]].<ref name="Mearsheimer 2010">{{cite book|last=Mearsheimer|first=John J.|url=https://books.google.com/books?id=uq1nV4XObpAC|title=Liddell Hart and the Weight of History|date=<!-- March -->2010|publisher=Cornell University Press|isbn=978-0-8014-7631-0}}</ref> While acknowledging that his own research had "profited greatly from his stimulating writings" and that Liddell Hart's works should still be considered "essential reading for serious students of strategy and warfare",<ref name="Mearsheimer 2010"/>{{rp|page=x}} Mearsheimer argues that much of the conventional wisdom on Liddell Hart's contributions to modern military thought was flawed. In particular, the theory of the [[indirect approach]], which Liddell Hart developed in the 1930s, is so vague and tautological that "virtually every military victory can be ascribed to [it]."<ref name="Mearsheimer 2010"/>{{rp|page=87}} Moreover, Liddell Hart's limited attempts to operationalize the theory clearly indicated that what he primarily had in mind was to "indirectly" defeat a continental adversary by "break[ing] the morale of the enemy's civilian population, not to destroy his military forces, which of course is what the blitzkrieg is concerned with".<ref name="Mearsheimer 2010"/>{{rp|page=88}} The common practice of tracing the intellectual origins of the [[blitzkrieg]] strategy to the indirect approach is thus mistaken since there was "no evidence ... that Liddell Hart understood the importance of the deep strategic penetration [that distinguishes ''blitzkrieg''] ''before'' [[World War II]]". Not surprisingly, Liddell Hart was proven utterly wrong on the fundamental military questions of the [[interwar period]] (he dismissed the possibility of a [[Battle of France|decisive German offensive in the Western front]]) and fell into disrepute in the immediate aftermath of the war.<ref name="Mearsheimer 2010"/>{{rp|page=43}}

Mearsheimer shows that Liddell Hart managed to salvage his intellectual stature by convincing former [[Wehrmacht]] generals to credit him with the ideas that led to the development of Germany's blitzkrieg strategy. Eager to restore their own tarnished reputation after the war, retired German generals such as [[Heinz Guderian]] allowed Liddell Hart to exaggerate his influence on ''blitzkrieg'' in their memoirs in exchange for helping them promote an image of themselves as having been military innovators first and foremost rather than [[Nazi]] henchmen. In the case of Guderian, Liddell Hart effectively acted as his "literary agent" for the English-speaking world.<ref name="Mearsheimer 2010"/>{{rp|page=185}} [[Fritz Bayerlein]], who served as General [[Erwin Rommel]]'s chief of staff in the [[North African campaign]], similarly helped Liddell Hart manipulate the historical record for a false portrayal of Rommel as having been his "pupil".<ref name="Mearsheimer 2010"/>{{rp|page=193–201}} Mearsheimer concludes by emphasizing the importance of a robust intellectual community that can hold "defense intellectuals" accountable:

<blockquote>Defense intellectuals need to know that informed judgments will be passed on their views and their overall conduct and that charlatanism will be exposed. Absence of penalties for misbehavior means no brake on the spread of false ideas. Liddell Hart actually was held accountable at one point. The significant ebbing of his influence during and immediately after World War II was, in effect, punishment for offering flawed ideas for how to deal with the [[Nazi Germany|Third Reich]]. What is disturbing about Liddell Hart's case, however, is that eventually he was able to escape from this predicament by rewriting history. The national security community, especially its historians, need to be alert to historical manipulation for selfish reasons.<ref name="Mearsheimer 2010"/>{{rp|page=224}}</blockquote>

Mearsheimer's arguments about Liddell Hart generated varied responses. For example, the founder of the [[Israel Defense Forces]] Operational Theory Research Institute, Simon Naveh, concurred in a separate study, which found that "by distorting the actual historical circumstances of the ''Blitzkrieg'' formation [Liddell Hart] obscured its temporal and cognitive origins.... The early-1950s display of the transformed version of ''Blitzkrieg'' as a historical fact, carrying the joint signature of Liddell Hart and Guderian, lent it an authentic touch and a professional legitimacy that could not be shaken."<ref>{{Cite book|last=Naveh|first=Shimon|url=https://books.google.com/books?id=b_PqdHNUg5kC|title=In Pursuit of Military Excellence: The Evolution of Operational Theory|date=1997|publisher=Taylor & Francis|isbn=978-0-7146-4277-2|access-date=December 27, 2020|archive-date=March 26, 2022|archive-url=https://web.archive.org/web/20220326190036/https://books.google.com/books?id=b_PqdHNUg5kC|url-status=live}}</ref>{{rp|108–109}} In contrast, Richard Swain of the [[United States Army Command and General Staff College|US Army Command and General Staff College]] argued that while "there is a good deal about which Mearsheimer is correct," he likely overstates the extent to which Liddell Hart's historical distortions were consciously self-serving: "To charge Liddell Hart with cleverly creating a deception requires one first to accept that Liddell Hart knew he had been wrong. There is little or no evidence of that."<ref>{{Cite journal|last=Swain|first=Richard M.|date=1991|title=Review of Liddell Hart and the Weight of History|journal=Albion: A Quarterly Journal Concerned with British Studies|volume=23|issue=4 |pages=801–804|doi=10.2307/4050797|jstor=4050797|issn=0095-1390}}</ref>{{rp|803}}

===Nuclear proliferation and deterrence===
In 1990, Mearsheimer published an essay in which he predicted that Europe would revert to a [[Polarity (international relations)|multipolar]] environment, similar to that of the first half of the 20th century, if American and Soviet forces left after the end of the [[Cold War]].<ref name="Back to the Future">{{cite journal |last=Mearsheimer |first=John |year=1990 |title=Back to the Future |journal=[[International Security (journal)|International Security]] |volume=15 |issue=1 |url=http://johnmearsheimer.uchicago.edu/pdfs/A0017.pdf |doi=10.2307/2538981 |pages=5–56 |jstor=2538981 |s2cid=153793930 |access-date=November 29, 2005 |archive-date=November 11, 2006 |archive-url=https://web.archive.org/web/20061111231321/http://johnmearsheimer.uchicago.edu/pdfs/A0017.pdf |url-status=live }}</ref> In another article that year in ''[[The Atlantic]]'', he predicted that the multipolar environment would increase nuclear proliferation in Europe, especially in Germany.<ref name="Atlantic Monthly">{{cite magazine|last=Mearsheimer|first=John|date=August 1990|title=Why We Will Soon Miss the Cold War|magazine=[[The Atlantic Monthly]]|volume=90|issue=8|pages=35–50|url=https://www.theatlantic.com/past/politics/foreign/mearsh.htm|access-date=March 8, 2017|archive-date=December 28, 2016|archive-url=https://web.archive.org/web/20161228225741/http://www.theatlantic.com/past/politics/foreign/mearsh.htm|url-status=live}}</ref>

In that essay and in the 1993 ''[[Foreign Affairs]]'' article "The case for a Ukrainian nuclear deterrent",<ref name="mh93">{{cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0020.pdf |first=John |last=Mearsheimer |title=The case for a Ukrainian nuclear deterrent |journal=[[Foreign Affairs]] |date=Summer 1993|volume=72 |issue=3 |pages=50–66 |doi=10.2307/20045622 |jstor=20045622 |archive-url=https://web.archive.org/web/20060527205728/http://mearsheimer.uchicago.edu/pdfs/A0020.pdf |archive-date=May 27, 2006 |url-status=dead}}</ref> he argues that to reduce the dangers of war, the US should accept the [[Germany and weapons of mass destruction|possibility of Germany]] and [[Ukraine and weapons of mass destruction|Ukraine]] developing a [[nuclear arsenal]] and work to prevent the rise of excessive [[nationalism]]. Mearsheimer presents several possible scenarios for a Europe after the departure of American and Russian forces. He states that a Europe with nuclear proliferation was most likely to remain at peace because without a nuclear deterrent, [[German imperialism|Germany would be likely to once more try to conquer the continent]].<ref name="Back to the Future"/>{{rp|32–33}} Mearsheimer argues it to be strategically unwise for Ukraine to surrender its nuclear arsenal (remnants of the Soviet stockpile). However, in 1994 [[Budapest Memorandum on Security Assurances|a series of agreements]] required Ukraine to agree to get rid of its entire former Soviet nuclear stockpile, a process that was complete by 1996. When challenged on the former assertion at a lecture given to the International Politics department at the [[University of Wales]] in [[Aberystwyth]], he said that in spite of [[European integration]] and expansion, he still believed that his predictions would come true if the US military left Europe.<ref>{{cite journal |last=Mearsheimer |first=John |year=2006 |title=Conversations in International Relations: Interview with John J. Mearsheimer (Part I) |journal=[[International Relations (journal)|International Relations]] |volume=20 |issue=1 |url=http://johnmearsheimer.uchicago.edu/pdfs/A0020.pdf |pages=105–123 |doi=10.1177/0047117806060939 |s2cid=220788933 |access-date=August 14, 2008 |archive-date=May 1, 2013 |archive-url=https://web.archive.org/web/20130501181414/http://johnmearsheimer.uchicago.edu/pdfs/A0020.pdf |url-status=live }}; See page 116</ref>

In op-ed pieces written in 1998 and 2000 for ''[[The New York Times]]'', Mearsheimer explains why it makes sense for [[India and weapons of mass destruction|India to pursue nuclear weapons]]. He argues that India has good strategic reasons to want a nuclear deterrent, especially to balance against China and Pakistan and to guarantee regional stability. He also criticized the American [[Nuclear proliferation|counterproliferation]] policy towards India, which he considers to be unrealistic and harmful to American interests in the region.<ref>{{cite news |url=https://www.nytimes.com/2000/03/24/opinion/india-needs-the-bomb.html |title=India Needs The Bomb |newspaper=[[The New York Times]] |date=March 24, 2000 |access-date=February 26, 2022 |archive-date=February 26, 2022 |archive-url=https://web.archive.org/web/20220226205927/https://www.nytimes.com/2000/03/24/opinion/india-needs-the-bomb.html |url-status=live |url-access=registration}}</ref> At the Korea Global Forum 2023 organized by South Korea's [[Ministry of Unification]] in Seoul, Mearsheimer stated at keynote speech that [[North Korea and weapons of mass destruction|North Korea possessing nuclear weapons]] is not an ideal situation, but can be seen as "force of stability". This is because the US provides a [[nuclear umbrella]] to South Korea while North Korea has their own nuclear weapons as a necessary deterrent against the US and other adversaries. Mearsheimer also stated that possession of nuclear weapons by the US and the Soviet Union during the Cold War played a big role in both sides not attacking each other.<ref>{{cite web |date=August 30, 2023 |title=Mearsheimer: North Korean nukes a 'force for stability' on Korean Peninsula |url=https://www.nknews.org/2023/08/mearsheimer-north-korean-nukes-a-force-for-stability-on-korean-peninsula/ |website=[[NK News]]}}</ref>

==="The False Promise of International Institutions"===
In a widely cited 1994 article, "The False Promise of International Institutions", Mearsheimer tackles popular arguments about the ability of institutions to discourage war and promote peace among states. He recognizes that states often find institutions to be useful, but the imperative of relentless security competition under anarchy means that state behavior is primarily a function of the distribution of power in the international system. Institutions, at best, are "merely an intervening variable in the process." Mearsheimer says that "institutionalist theories" offered poor alternatives to this grim picture of international politics. In particular, influential [[Liberal institutionalism|neoliberal institutionalist]] arguments ignore relative-gains concerns as a barrier to cooperation and fail to provide evidence that instances of cooperation, which are commonly attributed to institutions, would not have taken place in their absence. Other theories such as [[collective security]] theory and [[Critical international relations theory|critical theory]] likewise fell short on logical and empirical grounds.<ref>{{Cite journal |last=Mearsheimer |first=John J. |date=1994 |title=The False Promise of International Institutions|journal=[[International Security (journal)|International Security]] |volume=19 |issue=3 |pages=5–49 |doi=10.2307/2539078 |jstor=2539078 |s2cid=153472054 |issn=0162-2889}}</ref>

In a response article, neoliberal institutionalist scholars [[Robert Keohane]] and [[Lisa Martin (political scientist)|Lisa Martin]] acknowledge that seminal institutionalist works tended to neglect the problem of relative gains but state that the debate spawned by realist challenges "has made distributional and bargaining issues more salient than they were in early neoliberal thinking."<ref>{{Cite journal |last1=Keohane|first1=Robert O.|last2=Martin|first2=Lisa L. |date=1995|title=The Promise of Institutionalist Theory|journal=[[International Security (journal)|International Security]] |volume=20|issue=1 |pages=39–51 |doi=10.2307/2539214|jstor=2539214|s2cid=29960902|issn=0162-2889}}</ref> Mearsheimer charges that "a careful look at Keohane and Martin's response reveals that liberal institutionalism in its latest form is no longer a clear alternative to realism, but has, in fact, been swallowed up by it."<ref>{{Cite journal|last=Mearsheimer|first=John J.|date=1995|title=A Realist Reply|journal=[[International Security (journal)|International Security]] |volume=20|issue=1|page=85|doi=10.2307/2539218|jstor=2539218|s2cid=154731141|issn=0162-2889}}</ref>

===Offensive realism===
Mearsheimer is the leading proponent of the [[Neorealism (international relations)|neorealist]] theory of [[offensive realism]]. The structural theory, unlike the [[Classical realism (international relations)|classical realism]] of [[Hans Morgenthau]], places the principal emphasis on security competition among great powers within the anarchy of the international system, not on the human nature of statesmen and diplomats. In contrast to another structural realist theory, the [[defensive realism]] of [[Kenneth Waltz]] (the founder of neorealism), offensive realism maintains that states are not satisfied with a given amount of power but seek hegemony for security because the anarchic makeup of the international system creates strong incentives for states to seek opportunities to gain power at the expense of competitors.<ref name=":44"/> Mearsheimer summarized that view in his 2001 book ''[[The Tragedy of Great Power Politics]]'':

<blockquote>Given the difficulty of determining how much power is enough for today and tomorrow, great powers recognize that the best way to ensure their security is to achieve hegemony now, thus eliminating any possibility of a challenge by another great power. Only a misguided state would pass up an opportunity to be the hegemon in the system because it thought it already had sufficient power to survive.<ref>{{cite book |last=Mearsheimer|first=John |year=2001|title=The Tragedy of Great Power Politics|publisher=W. W. Norton |location=New York |isbn=0-393-02025-8|page=[https://archive.org/details/tragedyofgreatpo00mear/page/35 35] |url=https://archive.org/details/tragedyofgreatpo00mear}}</ref></blockquote>

Mearsheimer dismisses [[democratic peace theory]], which claims that [[Democracy|democracies]] never or rarely go to war with each other.<ref name="Atlantic Monthly"/> He also does not believe it to be possible for a state to become a global [[Hegemony|hegemon]]. Although that is theoretically possible, there is too much landmass and too many oceans, which he posits as having effective stopping power and acting as giant moats. Instead, he believes that states can achieve only [[regional hegemony]]. Furthermore, he argues that regional hegemons attempt to prevent other states from gaining hegemony in their region since peer competitors would be free to roam and thus could interfere in the established regional hegemon's neighborhood. States that have achieved regional hegemony, such as the United States (see [[Monroe Doctrine]]), will act as offshore balancers by interfering in other regions if the great powers in those regions cannot prevent the rise of a hegemon. Mearsheimer's theory of offensive realism has become a popular explanation of the American strategic approach in resisting China as a growing superpower that might one day unseat America's dominant position.<ref name=":92222">{{Cite book |last=Turcsanyi |first=Richard J. |title=Contemporary China: a New Superpower? |publisher=[[Routledge]] |year=2023 |isbn=978-1-03-239508-1 |editor-last=Kironska |editor-first=Kristina |chapter=Relations with the United States |editor-last2=Turscanyi |editor-first2=Richard Q.}}</ref>{{Rp|page=216}}

===Night watchman===
"Night watchman" in Mearsheimer's terminology is a "global hegemon", a theoretical impossibility according to ''[[The Tragedy of Great Power Politics]]''.<ref name="mearsheimer-2001-tragedy">{{cite book |url= |chapter-url=https://samuelbhfauredotcom.files.wordpress.com/2015/10/s2-mearsheimer-2001.pdf |chapter=Chapter One: Introduction |page=82 |isbn=9780393020250 |title=The Tragedy of Great Power Politics |last1=Mearsheimer |first1=John J. |last2=Alterman |first2=Glenn |year=2001 |publisher=W. W. Norton & Company |access-date=January 17, 2018 |archive-date=January 17, 2018 |archive-url=https://web.archive.org/web/20180117131707/https://samuelbhfauredotcom.files.wordpress.com/2015/10/s2-mearsheimer-2001.pdf |url-status=live }}</ref> Nevertheless, Mearsheimer mentioned in 1990 the existence of a "watchman". Democracies lived at peace because "America's hegemonic position in NATO ... mitigated the effects of anarchy on the Western democracies and induced cooperation among them ... With the United States serving as a night watchman, fears about relative gains among the Western European states were mitigated[.]"<ref name="Atlantic Monthly"/>

Afterwards, Mearsheimer did not mention the "watchman" for some time. A decade later, he described the "international anarchy" as having not changed with the end of the Cold War, and that "there are few signs that such change is likely any time soon. States remain the principal actors in world politics and there is still no ''night watchman'' standing above them."<ref name="mearsheimer-2001-tragedy" /> Five more years later, Mearsheimer confirmed that "in an anarchic system there is no ''night watchman'' for a state to call when trouble comes knocking at their door."<ref>{{cite journal |url= |page=160|doi=10.1525/curh.2006.105.690.160 |title=China's Unpeaceful Rise |year=2006 |last1=Mearsheimer |first1=John J. |journal=Current History |volume=105 |issue=690 |doi-access=free }}</ref> Precisely two decades after Mearsheimer had detected the watchman in the world for the last time, he rediscovered the watchman, which exists and keeps Europe at peace. The article "Why Is Europe Peaceful Today?" unambiguously answers, "The reason is simple: the United States is by far the most powerful country in the world and it effectively acts as a ''night watchman''."<ref>{{cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0055.pdf |doi=10.1057/eps.2010.24|archive-url=https://web.archive.org/web/20120303115533/http://mearsheimer.uchicago.edu/pdfs/A0055.pdf |archive-date=March 3, 2012 |title=Why is Europe Peaceful Today? |year=2010 |last1=Mearsheimer |first1=John J. |journal=European Political Science |volume=9 |issue=3 |pages=387–397 |s2cid=141256617 |url-status=dead}}</ref>

===Persian Gulf War===
In January and early February 1991, Mearsheimer published two op-eds in the ''Chicago Tribune'' and the ''New York Times'' and argued that [[Gulf War|the war to liberate Kuwait from Iraqi forces]] would be quick and lead to a decisive US victory, with less than 1,000 American casualties. Mearsheimer's argument was based on several points. Firstly, the Iraqi Army was a [[Third World]] military that was unprepared to fight mobile armored battles. Secondly, US armored forces were better equipped and trained. Thirdly, US artillery was also far better than its Iraqi counterpart. Fourthly, US airpower, unfettered by the weak Iraqi air force, should prove devastating against Iraqi ground forces. Fifthly and finally, the forward deployment of Iraqi reserves boded ill for their ability to counter US efforts to penetrate the Iraqi defense line along the Saudi–Kuwaiti border. All of those predictions came true during the course of the war.<ref>{{Cite news |url=http://mearsheimer.uchicago.edu/pdfs/P0001.pdf |via=mearsheimer.uchicago.edu |newspaper=[[Chicago Tribune]] |first=John J. |last=Mearsheimer |title=A war the U.S. can win – decisively |date=January 15, 1991 |page=13 |archive-url=https://web.archive.org/web/20060910030521/http://mearsheimer.uchicago.edu/pdfs/P0001.pdf |archive-date=September 10, 2006 |url-status=dead}}</ref><ref name="why-john-j-mearsheimer-is-right-about-some-things/8839">{{cite web |url=https://www.theatlantic.com/magazine/archive/2012/01/why-john-j-mearsheimer-is-right-about-some-things/8839/?single_page=true |title=Why John J. Mearsheimer Is Right (About Some Things) |author=Robert D. Kaplan |work=[[The Atlantic]] |date=December 20, 2011 |access-date=August 27, 2014 |url-status=live |archive-date=April 21, 2012 |archive-url=https://web.archive.org/web/20120421201154/http://www.theatlantic.com/magazine/archive/2012/01/why-john-j-mearsheimer-is-right-about-some-things/8839/?single_page=true }}</ref>

===''The Israel Lobby and U.S. Foreign Policy''===
{{Main|The Israel Lobby and U.S. Foreign Policy}}

In March 2006, Mearsheimer and [[Stephen Walt]], the former academic dean and professor of international relations at the [[Harvard Kennedy School]], published a working paper,<ref>{{cite web |title=The Israel Lobby and U.S. Foreign Policy |url=http://ksgnotes1.harvard.edu/Research/wpaper.nsf/rwp/RWP06-011 |url-status=dead |first1=John J. |last1=Mearsheimer|first2=Stephen |last2=Walt |author2-link=Stephen Walt |series=[[Harvard Kennedy School]] Working Paper |date=March 13, 2006|archive-url=https://web.archive.org/web/20070202034826/http://ksgnotes1.harvard.edu/Research/wpaper.nsf/rwp/RWP06-011 |archive-date=February 2, 2007 }}</ref> as well as a ''[[London Review of Books]]'' article,<ref>{{cite web |url=http://www.lrb.co.uk/v28/n06/print/mear01_.html |title=The Israel Lobby |first1=John J. |last1=Mearsheimer |first2=Stephen |last2=Walt |author2-link=Stephen Walt |work=[[London Review of Books]] |date=March 23, 2006 |access-date=March 17, 2006 |archive-date=May 11, 2008 |archive-url=https://web.archive.org/web/20080511200912/http://www.lrb.co.uk/v28/n06/print/mear01_.html |url-status=live }}</ref> discussing the power of the [[Israel lobby in the United States|Israel lobby]] shaping the U.S. foreign policy. They define the Israel lobby as "a loose coalition of individuals and organizations who actively work to steer US foreign policy in a pro-Israel direction." They state that it is not appropriate to label it a "[[Jewish lobby]]" because not all [[Jews]] feel a strong attachment to [[Israel]], and because some of the individuals and groups who work to foster US support for Israel are not Jewish. For example, [[Christian Zionists]] also play an important role. Finally, they emphasize that the lobby is not a [[cabal]] or a conspiracy but simply a powerful interest group, like the [[National Rifle Association of America]] or the farm lobby. Their core argument is that the policies pushed by the lobby are not in the [[national interest]] of the US or ultimately of [[Israel]]. Those pieces generated extensive media coverage and led to a wide-ranging and often heated debate, including charges of antisemitism, between supporters and opponents of their argument.<ref>{{Cite news |last=Deborah Amos |date=April 21, 2006 |title=Paper on Israel Lobby Sparks Heated Debate |url=https://www.npr.org/2006/04/21/5353855/paper-on-israel-lobby-sparks-heated-debate |work=[[NPR]]}}</ref> The article was subsequently turned into a book, ''[[The Israel Lobby and U.S. Foreign Policy]].''<ref>{{Cite web |last=Barrie Hardymon |date=September 20, 2007 |title=In The Lobby |url=https://www.npr.org/blogs/talk/2007/09/in_the_lobby.html |website=[[Talk of the Nation]]}}</ref> Mearsheimer and Walt also contend in the book that the [[Israel–United States relations|US-Israel alliance]] skews US foreign policy in Israel's favor, often at the expense of regional stability in the Middle East.<ref>{{Cite book |last=Zhang |first=Chuchu |title=China's Changing Role in the Middle East: Filling a Power Vacuum? |date=2025 |publisher=[[Routledge]] |isbn=978-1-032-76275-3 |series=Changing Dynamics in Asia-Middle East Relations series |location=Abingdon, Oxon; New York, NY}}</ref>{{Rp|page=5}}

====Statements on Israeli wars and Palestinian statehood====
Mearsheimer was critical of the [[2006 Lebanon War]]. He argued that Israel's strategy was "doomed to fail" because it was based on the "faulty assumption" that Israeli air power could defeat [[Hezbollah]], which was essentially a guerrilla force. The war, he argued, was a disaster for the Lebanese people, as well as a "major setback" for the United States and Israel.<ref>Mearsheimer, John J., and [[Stephen M. Walt]] (2007). ''The Israel Lobby and U.S. Foreign Policy'', pp. 315–6.</ref> He said that the Israel lobby played a key role in enabling Israel's counterproductive response by preventing the US from exercising independent influence.<ref>Mearsheimer, John J., and [[Stephen M. Walt]] (2007). ''The Israel Lobby and U.S. Foreign Policy'', p. 326.</ref> Mearsheimer was also critical of Israel's [[Gaza War (2008–2009)|offensive against Hamas in the Gaza Strip]] that began in December 2008. He argued that it would not eliminate [[Hamas]]'s capability to fire missiles and rockets at Israel and that it would not cause Hamas to end its fight with Israel. In fact, he argued that relations between Israel and the Palestinians were likely to get worse in the years ahead.<ref>Mearsheimer, John J. (Jan. 26, 2009). "Another War, Another Defeat." ''[[American Conservative]]''; Mearsheimer, John J. (Jan. 29, 2009). "Responses to Gaza." ''[[London Review of Books]]''.</ref>

Mearsheimer emphasizes that the only hope for Israel to end its conflict with the Palestinians is to end the occupation and to allow the Palestinians to have their own state in Gaza and the West Bank; otherwise, Israel will turn itself into an "[[Israeli apartheid|apartheid state]]", which would be a disastrous outcome for Israel, the United States, and especially for the Palestinians.<ref>Mearsheimer, John J. (May 18, 2009). [https://www.theamericanconservative.com/saving-israel-from-itself/ "Saving Israel from Itself."] ''[[American Conservative]]''.</ref> Mearsheimer's criticisms of Israel further extended to its possession of nuclear weapons. In remarks made at the [[International Spy Museum]] in 2010, Mearsheimer asserted that a nuclear Israel was contrary to US interests and questioned Israel's accountability in the matter. He stated that there was "no accountability for Israel on any issue" because he surmised, "The Israelis can do almost anything and get away with it."<ref>{{cite web |last=Mearsheimer |first=John |date=July 9, 2010 |title=Israel's Nukes Harm US National Interests |url=http://original.antiwar.com/john-mearsheimer/2010/07/08/israels-nukes-harm-us-national-interests/ |url-status=live |archive-url=https://web.archive.org/web/20120925070651/http://original.antiwar.com/john-mearsheimer/2010/07/08/israels-nukes-harm-us-national-interests/ |archive-date=September 25, 2012 |access-date=November 25, 2012 |website=[[Antiwar.com]]}}</ref>

===="The Future of Palestine"====
In April 2010, Mearsheimer delivered the [[Hisham B. Sharabi]] Memorial Lecture at the [[Palestine Center]] in Washington, D.C., which he titled "The Future of Palestine: Righteous Jews vs. the New Afrikaners." He argued that "the [[two-state solution]] is now a fantasy" because Israel will incorporate the Gaza Strip and the West Bank into a "[[Greater Israel]]", which would become an apartheid state. According to Mearsheimer, such a state would not be politically viable, most American Jews would not support it, and it would eventually become a democratic binational state politically dominated by its Palestinian majority. He suggested that "American Jews who care deeply about Israel" could be divided into three categories: the "new [[Afrikaners]]", who will support Israel even if it is an apartheid state; "righteous Jews", who believe that individual rights are universal and apply equally to Jews and Palestinians; and the largest group, which he called the "great ambivalent middle". He concluded that most of the "great ambivalent middle" would not defend an apartheid Israel because "American Jews are among the staunchest defenders of traditional liberal values." Accordingly, the "new Afrikaners" would become increasingly marginalized over time. Mearsheimer stated that he "would classify most of the individuals who head the Israel lobby's major organizations as "'new Afrikaners'" and specifically listed a number of prominent Jews and Jewish organizations, including [[Abraham Foxman]] of the [[Anti-Defamation League]], [[David Harris (advocate)|David Harris]] of the [[American Jewish Committee]], [[Malcolm Hoenlein]] of the [[Conference of Presidents of Major American Jewish Organizations]], [[Ronald Lauder]] of the [[World Jewish Congress]], [[Morton Klein]] of the [[Zionist Organization of America]], as well as businessmen such as [[Sheldon Adelson]], [[Lester Crown]], and [[Mortimer Zuckerman]] and "media personalities" like [[Fred Hiatt]], [[Charles Krauthammer]], [[Bret Stephens]], and [[Martin Peretz]].<ref name=sml>{{cite web|last=Mearsheimer|first=John|title=The Future of Palestine: Righteous Jews vs. the New Afrikaners|url=http://www.thejerusalemfund.org/ht/d/ContentDetails/i/10418|work=Hisham B. Sharabi Memorial Lecture|publisher=The Jerusalem Fund|date=April 29, 2010|access-date=June 13, 2010|archive-date=June 13, 2010|archive-url=https://web.archive.org/web/20100613232419/http://www.thejerusalemfund.org/ht/d/ContentDetails/i/10418|url-status=live}}</ref>

====''The Wandering Who?''====
In 2011, John Mearsheimer wrote a back-cover blurb for controversial author [[Gilad Atzmon]]'s book ''The Wandering Who? A Study of Jewish Identity Politics'': "Gilad Atzmon has written a fascinating and provocative book on Jewish identity in the modern world. He shows how assimilation and liberalism are making it increasingly difficult for Jews in the Diaspora to maintain a powerful sense of their 'Jewishness.' Panicked Jewish leaders, he argues, have turned to Zionism (blind loyalty to Israel) and scaremongering (the threat of another Holocaust) to keep the tribe united and distinct from the surrounding goyim. As Atzmon's own case demonstrates, this strategy is not working and is causing many Jews great anguish. ''The Wandering Who?'' should be widely read by Jews and non-Jews alike."<ref name="walt.foreignpolicy.com">{{cite web |url=http://walt.foreignpolicy.com/posts/2011/09/25/mearsheimer_responds_to_goldbergs_latest_smear |title=Mearsheimer responds to Goldberg's latest smear |author=Stephen M. Walt |date=September 26, 2011 |website=walt.foreignpolicy.com |access-date=October 28, 2013 |archive-date=October 29, 2013 |archive-url=https://web.archive.org/web/20131029203719/http://walt.foreignpolicy.com/posts/2011/09/25/mearsheimer_responds_to_goldbergs_latest_smear |url-status=live }} (posted on Foreign policy)</ref>

Mearsheimer's endorsement of Atzmon's book was met with accusations of antisemitism by prominent Jewish writers and intellectuals. [[Alan Dershowitz]] wrote an article in response, "Why are John Mearsheimer and Richard Falk Endorsing a Blatantly Anti-Semitic Book?" He stated that the book "argues that Jews seek to control the world."<ref>{{cite magazine |url=https://newrepublic.com/article/97030/atzmon-wandering-who-anti-semitism-israel |title=Why are John Mearsheimer and Richard Falk Endorsing a Blatantly Anti-Semitic Book? |first=Alan |last=Dershowitz |author-link=Alan Dershowitz |date=November 4, 2011 |magazine=[[The New Republic]] |access-date=August 5, 2019 |archive-date=July 29, 2022 |archive-url=https://web.archive.org/web/20220729000209/https://newrepublic.com/article/97030/atzmon-wandering-who-anti-semitism-israel |url-status=live }}</ref> Mearsheimer denied the charges of antisemitism in that he had "no reason to amend it or embellish" his blurb<ref name=":0">{{Cite web |url=https://www.theatlantic.com/national/archive/2011/09/john-mearsheimer-endorses-a-hitler-apologist-and-holocaust-revisionist/245518/ |title=John Mearsheimer Endorses a Hitler Apologist and Holocaust Revisionist |last=Goldberg |first=Jeffrey |website=[[The Atlantic]] |date=September 23, 2011 |access-date=June 14, 2016 |archive-date=June 9, 2016 |archive-url=https://web.archive.org/web/20160609201918/http://www.theatlantic.com/national/archive/2011/09/john-mearsheimer-endorses-a-hitler-apologist-and-holocaust-revisionist/245518/ |url-status=live }}</ref> and defended his position. Responding to the charge by Jeffrey Goldberg in The Atlantic that Atzmon is antisemitic and, by implication, so is his positive review of Atzmon's book, Mearsheimer wrote: "Atzmon's basic point is that Jews often talk in universalistic terms, but many of them think and act in particularistic terms. One might say they talk like liberals but act like nationalists.... It is in this context that he discusses what he calls the 'Holocaust religion,' Zionism, and Israel's treatment of the Palestinians. Again, to be perfectly clear, he has no animus toward Judaism as a religion or with individuals who are Jewish by birth."<ref name="walt.foreignpolicy.com" />

===Rise and containment of China===
{{See also|Containment|United States foreign policy toward the People's Republic of China}}

Mearsheimer asserts that [[Chinese Century|China's rise]] will not be peaceful,<ref>{{cite web |url= http://cips.uottawa.ca/event/why-china-cannot-rise-peacefully/ |title= Why China Cannot Rise Peacefully |work= CIPS |publisher= U Ottawa |date= October 17, 2012 |access-date= August 27, 2014 |archive-date= December 1, 2012 |archive-url= https://web.archive.org/web/20121201001247/http://cips.uottawa.ca/event/why-china-cannot-rise-peacefully/ |url-status= live }}</ref> and that the US will seek to contain China and to prevent it from achieving regional hegemony.<ref name="cur">{{cite journal |last=Mearsheimer |first=John J. |date=April 2006 |title=China's Unpeaceful Rise |url=http://mearsheimer.uchicago.edu/pdfs/A0051.pdf |url-status=dead |journal=[[Current History]] |series=China and East Asia |volume=105 |issue=690 |pages=160–62 |doi=10.1525/curh.2006.105.690.160 |archive-url=https://web.archive.org/web/20100612111458/http://mearsheimer.uchicago.edu/pdfs/A0051.pdf |archive-date=June 12, 2010}}</ref><ref name="why-john-j-mearsheimer-is-right-about-some-things/8839" /><ref>{{cite journal |url=http://mearsheimer.uchicago.edu/pdfs/A0056.pdf |url-status=dead |doi=10.1093/cjip/poq016|archive-url=https://web.archive.org/web/20110815010014/http://mearsheimer.uchicago.edu/pdfs/A0056.pdf |archive-date=August 15, 2011 |title=The Gathering Storm: China's Challenge to US Power in Asia |year=2010 |last1=Mearsheimer |first1=J. J. |journal=The Chinese Journal of International Politics |volume=3 |issue=4 |pages=381–396 }}</ref><ref>{{cite news |url=http://mearsheimer.uchicago.edu/pdfs/P0014.pdf |url-status=dead |title=The Rise of China Will Not Be Peaceful at All |newspaper=[[The Australian]] |date=November 18, 2005 |archive-url=https://web.archive.org/web/20060910030018/http://mearsheimer.uchicago.edu/pdfs/P0014.pdf |archive-date=September 10, 2006 |via=mearsheimer.uchicago.edu}}</ref> Mearsheimer argues that although [[Containment|containing]] China militarily is possible, economic containment of China is not.<ref>{{cite book |last=Engle |first=Eric |title=Globalization with Chinese Characteristics: Liberalism, Realism, Marxism |date=January 11, 2019 }}</ref> Mearsheimer believes that China will attempt to dominate the [[Indo-Pacific]] region just as the US set out to dominate the [[Western Hemisphere]]. China's goal will be to gain a position of military superiority over its neighbors, which it sees as potentially dangerous threats.<ref name="mearsheimer.uchicago.edu">{{cite magazine |url=http://mearsheimer.uchicago.edu/pdfs/A0053.pdf |url-status=dead |via=mearsheimer.uchicago.edu |magazine=[[The Spectator]] |place=London|title=Australians should fear the rise of China |date=2 October 2010|archive-url=https://web.archive.org/web/20110815010011/http://mearsheimer.uchicago.edu/pdfs/A0053.pdf |archive-date=August 15, 2011 }}</ref> Additionally, he states that the US will attempt to form a balancing coalition that consists primarily of India, Japan, the Philippines, South Korea, Vietnam, and Indonesia to counter the growing strength and [[power projection]] capabilities of China.<ref>{{cite web |url= http://www.abc.net.au/tv/bigideas/browse/video_popup.htm?vidURL=/tv/bigideas/stories/2010/09/07/3001041-mediarss-full.xml&vidTitle=John%20Mearsheimer:%20China's%20Challenge%20to%20US%20Power&vidLength=Full |title=Video Full Clip – Browse – Big Ideas – ABC TV |publisher=Abc.net.au |access-date=August 27, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20170203034214/http://www.abc.net.au/tv/bigideas/browse/video_popup.htm?vidURL=%2Ftv%2Fbigideas%2Fstories%2F2010%2F09%2F07%2F3001041-mediarss-full.xml&vidTitle=John%20Mearsheimer%3A%20China%27s%20Challenge%20to%20US%20Power&vidLength=Full |archive-date=February 3, 2017}}</ref>

Mearsheimer presented a fuller statement of his views on China's rise in his 2014 updated edition of ''[[The Tragedy of Great Power Politics]]'', arguing that "if China continues its striking economic growth over the next few decades, it is likely to act in accordance with the logic of [[offensive realism]].... Specifically, it will try to dominate Asia the way the United States dominates the Western Hemisphere." In accordance with the theory's structural logic, China will pursue regional hegemony not because its domestic politics or ideology inclines it toward aggression but because "domination offers the best way to survive under international anarchy".<ref name="Mearsheimer 2003">{{Cite book|last=Mearsheimer|first=John J.|url=https://books.google.com/books?id=lDzCD_C_ipoC|title=The Tragedy of Great Power Politics|date=January 17, 2003|publisher=W. W. Norton & Co|isbn=978-0-393-07624-0|edition=Updated|access-date=December 27, 2020|archive-date=May 8, 2022|archive-url=https://web.archive.org/web/20220508084952/https://books.google.com/books?id=lDzCD_C_ipoC|url-status=live}}</ref>{{rp|page=368}} Mearsheimer stressed that China was simply following America's example in that regard:

<blockquote>These ambitious goals make good strategic sense for China (although this is not to say China will necessarily be able to achieve them). Beijing should want a militarily weak and isolated India, Japan, and Russia as its neighbors, just as the United States prefers a militarily weak Canada and Mexico on its borders. What state in its right mind would want other powerful countries located in its region? All Chinese surely remember what happened over the last century when Japan was powerful and China was weak.... [They also] surely remember what happened in the hundred years between the [[First Opium War]] (1832–42) and the end of [[World War II]] (1945), when the United States and the European great powers took advantage of a weak China and not only violated its sovereignty but also imposed unfair treaties on it and exploited it economically. Why should we expect China to act differently than the United States? Are the Chinese more principled than we are? More ethical? Are they less nationalistic? Less concerned about their survival? They are none of these things, of course, which is why China is likely to follow basic realist logic and attempt to become a regional hegemon in Asia.<ref name="Mearsheimer 2003"/>{{rp|pages=374–375}}</blockquote>

In a subsequent debate with former US National Security Advisor [[Zbigniew Brzezinski]] in ''[[Foreign Policy]]'' magazine, Mearsheimer clarified, "It is unlikely that China will go on a rampage and conquer other Asian countries. Instead, China will want to dictate the boundaries of acceptable behavior to neighboring countries, much the way the United States does in the Americas. An increasingly powerful China is also likely to try to push the United States out of Asia, much the way the United States pushed the European great powers out of the Western Hemisphere." In his response, Brzezinski argued, "How great powers behave is not predetermined.... For its part, the Chinese leadership appears much more flexible and sophisticated than many previous aspirants to great power status." Mearsheimer responded that Chinese leaders are indeed prudent and have no incentive to "pick a fight" with the United States at the moment, but "what we are talking about is the situation in 2025 or 2030, when China has the military muscle to take on the United States. What happens then, when China has a much larger gross national product and a much more formidable military than it has today? The history of great powers offers a straightforward answer[.]"<ref>{{Cite web|last1=Mearsheimer|first2=Zbigniew|last2=Brzezinski|first1=John J.|date=2009-10-22|title=Clash of the Titans|url=https://foreignpolicy.com/2009/10/22/clash-of-the-titans/|access-date=May 5, 2022|website=Foreign Policy|language=en-US|archive-date=May 8, 2022|archive-url=https://web.archive.org/web/20220508084952/https://foreignpolicy.com/2009/10/22/clash-of-the-titans/|url-status=live}}</ref>

In a widely debated 2021 ''Foreign Affairs'' article, Mearsheimer observed that the United States was destined to compete aggressively with China as long as the latter continued to grow into a militarily and economically powerful state in East Asia. However, contrary to realist logic, the US in the post-Cold War period had "promoted investment in China and welcomed the country into the global trading system, thinking it would become a peace-loving democracy and a responsible stakeholder in a US-led international order".<ref name="Mearsheimer 2021">{{Cite news|last=Mearsheimer|first=John J.|date=2021-11-16|title=The Inevitable Rivalry|journal=Foreign Affairs|language=en-US|url=https://www.foreignaffairs.com/articles/china/2021-10-19/inevitable-rivalry-cold-war|access-date=2021-12-01|issn=0015-7120|archive-date=December 1, 2021|archive-url=https://web.archive.org/web/20211201030403/https://www.foreignaffairs.com/articles/china/2021-10-19/inevitable-rivalry-cold-war|url-status=live}}</ref>{{rp|page=48}} In effect, by pursuing a policy of engagement, the US had facilitated China's dangerous rise to great-power status and hastened the onset of a [[Second Cold War|new Cold War]]:

<blockquote>Nobody can say that engagement wasn't given ample opportunity to work, nor can anyone argue that China emerged as a threat because the United States was not accommodating enough....China's economy experienced unprecedented growth, but the country did not turn into a liberal democracy or a responsible stakeholder. To the contrary, Chinese leaders view liberal values as a threat to their country's stability, and as rulers of rising powers normally do, they are pursuing an increasingly aggressive foreign policy. There is no way around it: engagement was a colossal strategic mistake.<ref name="Mearsheimer 2021"/>{{rp|pages=54–55}}</blockquote>

In a 2015 review of Mearsheimer's arguments on China, the sociologist [[Amitai Etzioni]] charged that the two powers "have very little 'real' reason to confront each other" and that the "main value of Mearsheimer's provocative thesis is that it alerts those of us on both sides of the power divide to redouble our efforts to prevent his dire predictions from coming true."<ref>{{Cite web|title=Mearsheimer's War With China|url=https://thediplomat.com/2015/03/mearsheimers-war-with-china/|access-date=December 24, 2020|website=The diplomat|language=en-US|archive-date=November 8, 2020|archive-url=https://web.archive.org/web/20201108105014/https://thediplomat.com/2015/03/mearsheimers-war-with-china/|url-status=live}}</ref> By contrast, Executive Director [[Tom Switzer]] of the Sydney-based [[Centre for Independent Studies]] opined in May 2020, "Rarely in history has an academic been as intellectually vindicated as John Mearsheimer, [He] accurately foresaw the intense Sino-American security competition that the coronavirus crisis has exposed."<ref>{{Cite web|title=Vindicated: John Mearsheimer saw today's bellicose China coming|url=https://www.cis.org.au/commentary/articles/vindicated-john-mearsheimer-saw-todays-bellicose-china-coming/|access-date=December 24, 2020|website=The Centre for Independent Studies|date=May 29, 2020|language=en-AU|archive-date=December 27, 2020|archive-url=https://web.archive.org/web/20201227051433/https://www.cis.org.au/commentary/articles/vindicated-john-mearsheimer-saw-todays-bellicose-china-coming/|url-status=live}}</ref>

In the early 2000s, after Mearsheimer argued in ''The Tragedy of Great Power Politics'' that China could not rise peacefully, he was invited by Chinese policymakers and academics to give talks in the country.<ref name=":3">{{Cite AV media |url=https://www.youtube.com/watch?v=Yl7goPRw_eE&t=4039s |title=John Mearsheimer: Is China the Real Winner of Ukraine War? {{!}} Endgame #136 (Luminaries) |date=2023-04-28 |last=Gita Wirjawan |author-link=Gita Wirjawan |language=en |access-date=2024-11-27 |via=YouTube}}</ref> Having attained stardom in China,<ref>{{Cite web |last=Yao Bowen |date=26 November 2024 |title=CO24182 {{!}} John Mearsheimer in China: Offensive Realism Resonates Amid Intellectual Rivalry |url=https://www.rsis.edu.sg/rsis-publication/rsis/john-mearsheimer-in-china-offensive-realism-resonates-amid-intellectual-rivalry/ |website=[[S. Rajaratnam School of International Studies]] |quote=In October 2024, John Mearsheimer, one of America's most prominent international relations scholars, delivered lectures at China’s top universities, including Tsinghua and Renmin, drawing large audiences and engaging in high-profile debates.}}</ref> he told the ''[[New Statesman]]'' in 2023: "When I go to Beijing, I feel more at home intellectually, and in terms of thinking about foreign policy, than I am in Washington. The Chinese are realists to the core."<ref>{{Cite web |last=Jacobson |first=Gavin |date=2023-09-27 |title=The tragedy of John Mearsheimer |url=https://www.newstatesman.com/ideas/2023/09/tragedy-john-mearsheimer |url-status=live |archive-url=https://ghostarchive.org/archive/2pTlV |archive-date=2024-11-27 |website=[[New Statesman]] |language=en |quote=Mearsheimer’s stardom also extends to China. “When I go to Beijing, I feel more at home intellectually, and in terms of thinking about foreign policy, than I am in Washington. The Chinese are realists to the core.”}}</ref> Mearsheimer notes that Chinese interlocutors often challenge him on his assertion of China's unpeaceful rise, with some [[political scientists]] citing [[economic interdependence]] theory<ref name=":3" /><ref>{{Cite journal |last=Masterson |first=James R. |date=March 2012 |title=Analysing China's economic interdependence and political relations with its neighbours |url=https://journals.sagepub.com/doi/10.1177/0920203X11429893 |journal=China Information |language=en |volume=26 |issue=1 |pages=3–33 |doi=10.1177/0920203X11429893 |issn=0920-203X|url-access=subscription }}</ref><ref>Clarke, Paul. “Does Growing Economic Interdependence Reduce the Potential for Conflict in the China-Taiwan-U.S. Triangle?” American Journal of Chinese Studies 15, no. 2 (2008): 57–68. http://www.jstor.org/stable/44288873</ref> or  [[Confucianism]]<ref>Miller, Nicholas JS. 2010. Pragmatic Nationalism and Confucianism: The New Ideology of the CCP. Inquiries Journal/Student Pulse 2 (04), http://www.inquiriesjournal.com/a?id=229</ref><ref>{{Cite journal |last=Zhao |first=Quansheng |date=2018-11-28 |title=The influence of Confucianism on Chinese politics and foreign policy |url=http://www.emerald.com/aeds/article/7/4/321-328/132051 |journal=Asian Education and Development Studies |language=en |volume=7 |issue=4 |pages=321–328 |doi=10.1108/AEDS-03-2018-0057 |issn=2046-3162|url-access=subscription }}</ref> to dispute his realist views.

===''Why Leaders Lie''===
{{Main|Why Leaders Lie}}

Mearsheimer wrote a book, ''Why Leaders Lie'' (Oxford University Press, 2011), which analyzes lying in international politics. He argues that leaders lie to foreign audiences because they think that it is good for their country. For example, he writes that US President [[Franklin D. Roosevelt]] lied about the [[USS Greer (DD-145)#The Greer incident, September 1941|''Greer'' incident]] in September 1941 because he was deeply committed to getting America into [[World War II]], which he thought was in its national interest.<ref name="Why Leaders Lie">{{cite book|last=Mearsheimer|first=John|title=Why Leaders Lie: The Truth About Lying in International Politics|year= 2013|publisher=Oxford University Press|location= Oxford|isbn= 978-0-19997545-7}}</ref>

His two main findings are that leaders actually do not lie very much to other countries and that democratic leaders are actually more likely than [[Autocracy|autocrats]] to lie to their own people.<ref>{{cite web |last=Barker |first=Alexander |date=October 17, 2011 |url=http://www.oxonianreview.org/wp/international-deceit/ |title=International Deceit |work=[[Oxonian Review]] |access-date=October 25, 2011 |archive-date=November 5, 2018 |archive-url=https://web.archive.org/web/20181105230509/http://www.oxonianreview.org/wp/international-deceit/ |url-status=usurped }}</ref> Thus, he starts his book by saying that it is not surprising that [[Saddam Hussein]] did not lie about Iraq having no [[weapons of mass destruction]] but that [[George W. Bush]] and some of his key advisors lied to the American people about the threat from Iraq. Mearsheimer argues that leaders are most likely to lie to their own people in democracies that fight wars of choice in distant places. He says that it is difficult for leaders to lie to other countries because there is not much trust among them, especially when security issues are at stake, and trust is needed for lying to be effective. Mearsheimer states that it is easier for leaders to lie to their own people because there is usually a good deal of trust between them.<ref name = "Why Leaders Lie" />

Mearsheimer does not consider the moral dimension of international lying, which he views from a utilitarian perspective. He argues that there are five types of international lies.<ref name="Mearsheimer Youtube">{{cite web|title=Why Leaders Lie: The Truth About Lying in International Politics|website=[[YouTube]]|date=March 2012 |url=https://www.youtube.com/watch?v=VPe5f5dcrGE|access-date=October 11, 2015|archive-date=April 14, 2015|archive-url=https://web.archive.org/web/20150414152920/https://www.youtube.com/watch?v=VPe5f5dcrGE|url-status=live}}</ref>
# ''Inter-state lies'' occur if the leader of one country lies to a leader of another country or, more generally, any foreign audience, to induce a desired reaction.
# ''Fear-mongering'' occurs if a leader lies to his or her own domestic public.
# ''Strategic cover-ups'' are lies to prevent controversial policies and deals from being made known publicly.
# ''Nationalist myths'' are stories about a country's past that portray that country in a positive light and its adversaries in a negative light.
# ''Liberal lies'' are given to clear up the negative reputation of institutions, individuals, or actions.

Mearsheimer explains the reasons for leaders pursuing each of the different kinds of lies. His central thesis is that leaders lie more frequently to domestic audiences than to leaders of other states. That is because international lying can have negative effects, including "blowback" and "backfiring". Blowback occurs if telling international lies helps cause a culture of deceit at home. Backfiring occurs if telling a lie leads to a failed policy. He also emphasizes that there are two other kinds of deception besides lying: "concealment", a leader remaining silent about an important matter, and "spinning", a leader telling a story that emphasizes the positive and downplays or ignores the negative.<ref name="Why Leaders Lie" />

===Ukraine===

===="The Case for a Ukrainian Nuclear Deterrent"====
{{Main|Nuclear weapons and Ukraine}}

When the Soviet Union ended, the newly-independent Ukraine was left with a large arsenal of Soviet nuclear weapons. In his 1993 article, "The Case for a Ukrainian Nuclear Deterrent", Mearsheimer argued that Ukraine should not give up its nuclear weapons, because he believed that without a [[nuclear deterrent]] it would be subjected to Russian aggression.<ref name=gsn1>{{cite web |work=Global Security Newswire |date=March 3, 2014 |url=http://www.nti.org/gsn/article/should-ukraine-have-gotten-rid-its-nukes/ |title=Should Ukraine Have Gotten Rid of Its Cold War Nukes? |access-date=14 October 2015 |archive-date=August 7, 2019 |archive-url=https://web.archive.org/web/20190807111821/https://www.nti.org/gsn/article/should-ukraine-have-gotten-rid-its-nukes/ |url-status=live }}</ref><ref name="mh93" /><ref name=vox1>{{cite news |last1=Matthews |first1=Dylan |title=What we don't know about war and peace |url=https://www.vox.com/future-perfect/2022/2/16/22935927/russia-ukraine-great-power-conflict |access-date=25 February 2022 |work=Vox |date=16 February 2022 |language=en |archive-date=February 26, 2022 |archive-url=https://web.archive.org/web/20220226133755/https://www.vox.com/future-perfect/2022/2/16/22935927/russia-ukraine-great-power-conflict |url-status=live }}</ref> He proposed that the United States change its policy and enable Ukraine to become an independent [[List of states with nuclear weapons|nuclear power]], saying "Ukrainian nuclear weapons are the only reliable deterrent to Russian aggression".<ref name="mh93"/> Mearsheimer wrote that "Russia has dominated an unwilling and angry Ukraine for more than two centuries, and has attempted to crush Ukraine's sense of self-identity",<ref name="mh93"/> and that some Russian officials "reject the idea of an independent Ukraine".<ref name="mh93"/> He said that a Russian war against Ukraine might lead Russia to "reconquer other parts of the former Soviet Union".<ref name="mh93"/> Mearsheimer opined that, if Russia attacked Ukraine, "great powers would move quickly and sharply to contain further [[Russian irredentism|Russian expansion]]".<ref name="mh93"/>

===="Why the Ukraine Crisis is the West's Fault"====
{{See also|Controversy regarding NATO's eastward expansion}}[[File:History of NATO enlargement.svg|thumb|Mearsheimer blamed NATO's eastern enlargement for provoking the Russo-Ukrainian War.]]
The [[Russo-Ukrainian War]] started in 2014. Amid the Ukrainian [[Revolution of Dignity]], Russia [[Russian occupation of Crimea|occupied]] and [[Annexation of Crimea by the Russian Federation|annexed]] Crimea from Ukraine, and supported [[Russian separatist forces in Ukraine|pro-Russian separatists]] who launched a [[War in Donbas|war in eastern Ukraine]]. In his August 2014 article, "Why the Ukraine Crisis is the West's Fault", Mearsheimer said the United States and its European allies were mainly to blame for the conflict:<ref name="Ukraine Crisis">{{Cite journal |first=John J. |last=Mearsheimer |date=September–October 2014 |title=Why the Ukraine Crisis Is the West's Fault: The Liberal Delusions That Provoked Putin |url=https://www.mearsheimer.com/wp-content/uploads/2019/06/Why-the-Ukraine-Crisis-Is.pdf |archive-url=https://web.archive.org/web/20220226172045/https://www.mearsheimer.com/wp-content/uploads/2019/06/Why-the-Ukraine-Crisis-Is.pdf |url-status=live |archive-date=February 26, 2022 |journal=[[Foreign Affairs]] |volume=93 |number=5 |pages=77–89 |jstor=24483306 |access-date=February 27, 2022}}</ref><ref>{{Cite journal |last=Mearsheimer |first=John J. |date=2014 |title=Why the Ukraine Crisis Is the West's Fault: The Liberal Delusions That Provoked Putin |url=https://www.jstor.org/stable/24483306 |journal=Foreign Affairs |volume=93 |issue=5 |pages=77–89 |jstor=24483306 |issn=0015-7120}}</ref>

Mearsheimer called Putin "a first-class strategist who should be feared and respected" on foreign policy.<ref name="Ukraine Crisis"/> He argued that Putin is driven by "legitimate security concerns" and does not want to occupy Ukraine.<ref name="Ukraine Crisis"/> Mearsheimer argued that Russia's annexation of Crimea was driven by fears of losing its [[Sevastopol Naval Base]].<ref name="Ukraine Crisis"/> He highlighted [[Russian opposition to Ukrainian NATO membership]] over the years, and the Western analysts who warned against it.<ref name="Ukraine Crisis"/> He argued that the United States would react the same way to a rival military alliance on its border: "Imagine the American outrage if China built an impressive military alliance and tried to include Canada and Mexico".<ref name="Ukraine Crisis" /> Mearsheimer says Russia's concerns about Ukraine eventually joining NATO are similar to US concerns about Soviet nuclear weapons being deployed in Cuba during the 1962 [[Cuban Missile Crisis]]: "Did Cuba have the right to form a military alliance with the Soviet Union during the Cold War? The United States certainly did not think so, and the Russians think the same way about Ukraine joining the West".<ref name="Ukraine Crisis" />

Mearsheimer wrote that the US and its allies have pushed for the eastward enlargement of NATO and the EU despite Russian opposition, pointing to the [[2008 Bucharest summit]] and the 2009 [[Eastern Partnership]] initiative.<ref name="Ukraine Crisis" /> He concluded that the EU and NATO "should abandon their plan to westernize Ukraine and instead aim to make it a neutral [[buffer state]] between NATO and Russia".<ref name="Ukraine Crisis" /> Regarding "the claim that Ukraine has the [[Charter for European Security|right to determine]] whom it wants to ally with", Mearsheimer says "This is a dangerous way for Ukraine to think about its foreign policy choices. The sad truth is that [[Might makes right|might often makes right]] when great-power politics are at play".<ref name="Ukraine Crisis" />

[[Michael McFaul]] and [[Stephen Sestanovich]] published their response to Mearsheimer in the November/December 2014 issue of ''Foreign Affairs''.<ref name="McFaul-Sestanovich">{{Cite journal |last1=McFaul |first1=Michael |author-link1=Michael McFaul |last2=Sestanovich |first2=Stephen |author-link2=Stephen Sestanovich |last3=Mearsheimer |first3=John J. |date=November–December 2014 |title=Faulty Powers: Who Started the Ukraine Crisis? |url=https://www.foreignaffairs.com/articles/eastern-europe-caucasus/2014-10-17/faulty-powers |journal=[[Foreign Affairs]] |publisher=Council on Foreign Relations |publication-date=2014-10-17 |volume=93 |issue=6 |pages=167–178 |issn=0015-7120 |jstor=24483933 |url-access=subscription}}</ref> They argued that Russian foreign policy was not a reaction to the US, but was driven by internal Russian politics.<ref name=McFaul-Sestanovich/> They rejected his description of the Ukrainian revolution as a "coup", countering that "after police killed scores of demonstrators in downtown Kiev, the whole country turned against him [Yanukovych], effectively ending his political career. Parliament [[Viktor Yanukovych#Removal from presidency|removed him by a unanimous vote]]".<ref name=McFaul-Sestanovich/>

In the book, ''War in Ukraine: Conflict, Strategy, and the Return of a Fractured World'', McFaul and Robert Person criticize Mearsheimer's arguments. They write that if Putin believed NATO was a military threat, he would not have deepened [[Russia–NATO relations|co-operation]] in the early 2000s and again in 2010, when NATO enlargement was ongoing. They point to Putin's statements in the early 2000s, when he said Ukraine in NATO would not concern Russia. They also wrote that Ukraine's parliament only revoked its [[Neutral country|neutral status]] in late 2014, "''after'' Russia had invaded Crimea and the Donbas". In their view, Putin's actions are more driven by [[Russian neo-imperialism]].<ref>{{Cite book |last=Brands |first=Hal |url=https://books.google.com/books?id=0n72EAAAQBAJ&dq=Why+would+Putin+want+to+join+an+alliance+allegedly+threatening+Russia&pg=PA48 |title=War in Ukraine: Conflict, Strategy, and the Return of a Fractured World |date=2024-04-02 |publisher=JHU Press |isbn=978-1-4214-4985-2 |pages=48–50 |language=en}}</ref>

Political scientist Filip Kostelka said Mearsheimer "ignores the fact that Ukrainians – like other Eastern Europeans – have been actively seeking NATO membership to protect themselves from the Russian threat. They did not need to be pushed".<ref name="Kostelka">{{cite web |last1=Kostelka |first1=Filip |title=John Mearsheimer's lecture on Ukraine: Why he is wrong and what are the consequences |url=https://euideas.eui.eu/2022/07/11/john-mearsheimers-lecture-on-ukraine-why-he-is-wrong-and-what-are-the-consequences/ |website=EUIdeas |publisher=[[European University Institute]] |date=11 July 2022}}</ref> National security expert [[Joe Cirincione]] also said that Mearsheimer ignored this, writing "America did not pull them into an anti-Russian pact".<ref name="Cirincione">{{cite web |last1=Cirincione |first1=Joe |title=What's Missing from Mearsheimer's Analysis of the Ukraine War |url=https://www.russiamatters.org/analysis/whats-missing-mearsheimers-analysis-ukraine-war |website=Russia Matters |publisher=[[Belfer Center for Science and International Affairs]] |date=29 July 2022}}</ref> Following calls to provide weapons to Ukraine to deter Putin,<ref>{{Cite book |last1=Daalder |first1=Ivo |author2=Michele Flournoy |author3=John Herbst |author4=Jan Lodal |author5=Steven Pifer |author6=James Stavridis |date=February 2015 |title=Preserving Ukraine's Independence, Resisting Russian Aggression: What the United States and NATO Must Do |url=https://www.brookings.edu/wp-content/uploads/2016/06/UkraineReport_February2015_FINAL.pdf |archive-url=https://web.archive.org/web/20161205220234/https://www.brookings.edu/wp-content/uploads/2016/06/UkraineReport_February2015_FINAL.pdf |archive-date=5 December 2016 |url-status=live |location=Washington, D.C. |publisher=[[Atlantic Council]] |isbn=978-1-61977-471-1 |oclc=919252973 |access-date=12 March 2023 |via=[[Brookings Institution]]<!-- https://www.brookings.edu/research/preserving-ukraines-independence-resisting-russian-aggression-what-the-united-states-and-nato-must-do/ -->}}</ref> Mearsheimer spoke against the idea.

====Russian invasion of Ukraine====
[[File:2022 Russian invasion of Ukraine 27-03-2022.svg|thumb|A map of the Russian invasion at its height in March 2022]]
On February 15, 2022, Mearsheimer argued that Putin had "no intention of invading Ukraine".<ref>{{Cite web |last=Levitz |first=Eric |date=2022-03-03 |title=Is America to Blame for Russia's War in Ukraine? |url=https://nymag.com/intelligencer/2022/03/is-america-to-blame-for-russias-war-in-ukraine.html |access-date=2025-12-10 |website=Intelligencer |language=en}}</ref> When [[Russian invasion of Ukraine|Russia invaded Ukraine a week later]], Mearsheimer re-affirmed his belief that the West were largely to blame. In March 2022, he was interviewed by [[Isaac Chotiner]] of ''[[The New Yorker]]''. Mearsheimer again blamed the invasion on "NATO expansion, EU expansion", and attempts to "turn Ukraine into a pro-American liberal democracy", arguing that "from a Russian perspective, this is an existential threat". He said Putin was not interested in conquering Ukraine and that Ukraine should "break off its close relations with the West ... and try to accommodate the Russians."<ref name="Isaac">{{cite magazine |last=Chotiner |first=Isaac |author-link=Isaac Chotiner |date=March 1, 2022 |title=Why John Mearsheimer Blames the U.S. for the Crisis in Ukraine |url=https://www.newyorker.com/news/q-and-a/why-john-mearsheimer-blames-the-us-for-the-crisis-in-ukraine |url-status=live |archive-url=https://web.archive.org/web/20220507043518/https://www.newyorker.com/news/q-and-a/why-john-mearsheimer-blames-the-us-for-the-crisis-in-ukraine |archive-date=May 7, 2022 |access-date=March 4, 2022 |magazine=[[The New Yorker]]}}</ref>

Soon after the invasion began, the [[Russian Ministry of Foreign Affairs]] endorsed Mearsheimer's view on why they invaded. Historian [[Anne Applebaum]] criticized Mearsheimer, saying "now wondering if the Russians didn't actually get their narrative from Mearsheimer ''et al''. Moscow needed to say West was responsible for Russian invasions (Chechnya, Georgia, Syria, Ukraine), and not their own greed and [[Russian neo-imperialism|imperialism]]. American academics provided the narrative." [[Adam Tooze]] wrote that Applebaum offered no evidence for her allegation.<ref>{{cite news|last=Tooze|first=A.|title=John Mearsheimer and the dark origins of realism: Rage aimed at the eminent international relations scholar reflects liberal frustration over the West's limited power to prevent Russia's war in Ukraine|work=[[The New Statesman]]|date=2022-03-08|access-date=2024-11-26|url=https://www.newstatesman.com/ideas/2022/03/john-mearsheimer-dark-origins-realism-russia}}</ref>

In June 2022, Mearsheimer delivered a speech on "The Causes and Consequences of the Ukraine War".<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=qciVozNtCDM |title=The causes and consequences of the Ukraine war A lecture by John J. Mearsheimer |date=2022-06-16 |last=The Robert Schuman Centre for Advanced Studies |access-date=2025-12-10 |via=YouTube}}</ref> He said there is no evidence that Putin wants to conquer Ukraine, and no evidence that Russia wants to install a puppet government. Mearsheimer argued that if Putin did want to conquer Ukraine, he would have used a larger army. Mearsheimer believes Putin has been telling the truth about his motives, saying Putin "does not have a history of lying to other leaders" or to foreign audiences.<ref>{{cite web |title=The Causes and Consequences of the Ukraine War |url=https://www.russiamatters.org/analysis/causes-and-consequences-ukraine-war |website=Russia Matters |date=23 June 2022}}</ref>

[[Joe Cirincione]] called Mearsheimer "dangerously wrong". He wrote that Putin recently likened himself to Tsar [[Peter the Great]], who, Putin said, had justly returned land to Russia; and that Russia's foreign minister [[Sergei Lavrov]] said that Russia's goal was to "free Ukraine’s people from the 'unacceptable regime' in Kyiv".<ref name="Cirincione"/> For Cirincione, the "greatest flaw" in Mearsheimer's argument is that "he must minimize [[War crimes in the Russian invasion of Ukraine|Russian atrocities]]" and "excuse Russian behavior as an understandable reaction to the threats it perceives" in order to make his case.<ref name="Cirincione"/> Political scientist Filip Kostelka said "By publicly defending his scientifically unsound thesis, Mearsheimer legitimizes Russia's propaganda and violates the fundamental values of social responsibility that all academics should respect".<ref name="Kostelka"/> He wrote that Mearsheimer [[Cherry picking|cherry-picked]] official statements by Russia's leadership and takes them at face value.<ref name="Kostelka"/> Kostelka accused Mearsheimer of [[double standards]], saying he does not give the same importance to "Russia’s imperial ambitions" or denial of Ukraine's right to exist.<ref name="Kostelka"/> Kostelka also said that Mearsheimer "remained oblivious to Russia’s numerous lies on public record, including Putin's original denial of any involvement in Crimea in 2014, which was followed by open boasting about the annexation a few months later".<ref name="Kostelka"/> He wrote that Russia only failed to take over the country because of a "disastrous miscalculation by the Kremlin".<ref name="Kostelka"/>

Mearsheimer was interviewed by Chotiner again in November 2022, after Russia [[Russian annexation of Donetsk, Kherson, Luhansk and Zaporizhzhia oblasts|annexed four provinces of Ukraine]]. He said that Putin only wanted to control those four provinces and "to make sure that the Ukrainian rump state that is left is neutral and is not associated with NATO in any formal or informal way". In his view, Russia's attack on Kyiv was meant to force the Ukrainian government to give up its plans of joining NATO. Mearsheimer was challenged by Chotiner, who said his arguments were contradicted by Putin's statements and actions. Mearsheimer replied that there was currently no evidence that Putin had any imperial ambitions but that there was "a huge amount of evidence that it was NATO expansion and the more general policy of making Ukraine a western bulwark on Russia’s border that motivated [Putin] to attack on February 24th".<ref>{{cite magazine |last=Chotiner |first=Isaac |author-link=Isaac Chotiner |date=November 17, 2022 |title=John Mearsheimer on Putin's Ambitions after Nine Months of War |url=https://www.newyorker.com/news/q-and-a/john-mearsheimer-on-putins-ambitions-after-nine-months-of-war |access-date=December 6, 2022 |magazine=[[The New Yorker]]}}</ref>

Mearsheimer doubts that a "meaningful" [[Peace negotiations in the Russian invasion of Ukraine|peace agreement]] could be reached because of "maximalist objectives". He believes that the best outcome would be a volatile [[frozen conflict]], while the worst outcome would be nuclear war, which he considered unlikely.<ref>{{cite web |date=2023-06-23 |first=John J. |last=Mearsheimer |publisher=[[Substack]] |title=The Darkness Ahead: Where The Ukraine War Is Headed |url=https://mearsheimer.substack.com/p/the-darkness-ahead-where-the-ukraine |website=John's substack |access-date=2 July 2023 |quote=The best possible outcome is a frozen conflict that could easily turn back into a hot war. The worst possible outcome is a nuclear war, which is unlikely but cannot be ruled out.}}</ref> According to Michael Lawriwsky, former chair of the Ukrainian Studies Foundation at [[Monash University]] and former editor for the ''Australian Ukrainian Review'', Mearsheimer accepts "Putin's rhetoric, which downplays the complexities of Ukraine’s stance on NATO" and "align[s] closely with Putin's misleading narrative that portrays NATO expansion as a direct threat to Russia".<ref>{{cite web | url=https://www.internationalaffairs.org.au/australianoutlook/the-russian-ukrainian-war-proponents-of-the-kremlins-narratives/ | title=The Russian-Ukrainian War: Proponents of the Kremlin's Narratives - Australian Institute of International Affairs }}</ref>

Mearsheimer was interviewed by Chotiner a third time in March 2025, after the [[2025 Trump–Zelenskyy Oval Office meeting]]. He praised U.S. President [[Donald Trump]]'s handling of the issue and said that Ukraine must agree to Russia's terms: remaining a neutral country with no NATO membership, ceding territory in [[eastern Ukraine]], and demilitarizing. Chotiner questioned whether Mearsheimer underestimated Putin, saying that Mearsheimer had previously predicted Putin would not invade Ukraine in 2014. Mearsheimer responded that the situation had changed after 2014. He stated that Putin was forced to invade Ukraine because of NATO expansion and U.S. President [[Joe Biden]]'s foreign policy, and that Putin did not seek to occupy and conquer Ukraine. In response, Chotiner mentioned [[Far-right politics in Russia|far-right]] Russian philosopher [[Aleksandr Dugin|Alexander Dugin]]'s statements that Russia's "civilization" will not "be complete until we have united all Eastern Slavs and all Eurasian brothers into a common big space"; Dugin previously interviewed Mearsheimer. Mearsheimer stated that, while he and Dugin agreed that NATO was at fault for the conflict, the two disagreed on several other political issues. He said that Dugin's influence on Putin was overstated.<ref>{{Cite magazine |last=Chotiner |first=Isaac |author-link=Isaac Chotiner |date=2025-03-11 |title=Why John Mearsheimer Thinks Donald Trump Is Right on Ukraine |url=https://www.newyorker.com/news/q-and-a/why-john-mearsheimer-thinks-donald-trump-is-right-on-ukraine |access-date=2025-08-05 |magazine=The New Yorker |language=en-US |issn=0028-792X}}</ref>

===Liberal international order===
In ''[[The Great Delusion|The Great Delusion: Liberal Dreams and International Realities]]'' (Yale University Press, 2018) Mearsheimer presents a critique of the geopolitical strategy he refers to as "liberal hegemony". His definition of liberal hegemony includes a three-part designation of it as an extension of [[Woodrow Wilson]]'s original initiatives to make the world safe by turning its governments into democracies, turning geopolitical economic initiatives towards open markets compatible with democratic governments, and opening up and promoting other democratically liberal international social and culture societies on a global scale of inclusion. Mearsheimer stated in an interview broadcast on [[C-SPAN]] that liberal hegemony represents a "great delusion" and that much more weight should be associated with [[nationalism]] as a policy of enduring geopolitical value than the delusions he associated with liberal hegemony.<ref>{{cite book|last=Mearsheimer|first=John J.|url=https://books.google.com/books?id=ExttDwAAQBAJ|title=Great Delusion: Liberal Dreams and International Realities|date=September 25, 2018|publisher=Yale University Press|isbn=978-0-300-24053-5|access-date=December 27, 2020|archive-date=May 8, 2022|archive-url=https://web.archive.org/web/20220508084953/https://books.google.com/books?id=ExttDwAAQBAJ|url-status=live}}</ref>

In a related 2019 article, Mearsheimer argued that the US-led [[liberal international order]] had been destined to collapse from its inception. Contrary to scholars such as [[John Ikenberry]], who trace the origins of the liberal international order to the early Cold War, he asserted that the Cold War liberal order had in fact been a "bounded order", designed to help the US and its allies compete more effectively against the Communist bloc. Although the US-led order became truly international after the collapse of the Soviet Union, the policies that undergird the order tended to precipitate its demise to the point that "[e]ven if Western policymakers had been wiser stewards of that order, they could not have extended its longevity in any meaningful way".<ref name="Mearsheimer 2020">{{cite web|title=Bound to Fail: The Rise and Fall of the Liberal International Order|url=https://www.belfercenter.org/publication/bound-fail-rise-and-fall-liberal-international-order|access-date=December 14, 2020|website=[[Belfer Center for Science and International Affairs]]|archive-date=November 20, 2020|archive-url=https://web.archive.org/web/20201120202644/https://www.belfercenter.org/publication/bound-fail-rise-and-fall-liberal-international-order|url-status=live}}</ref>{{rp|page=30}} In particular, US-led efforts to expand the order's membership by spreading democracy were bound to backfire by provoking nationalist resistance, embroiling the US in disastrous military adventures, and stoking hostility among rival powers such as Russia and China. Liberal internationalist policies also tended to collide with nationalism and economic concerns within the liberal countries themselves, as illustrated by key events such as [[Brexit]] and the election of [[Donald Trump]] to the US presidency. Finally, the drive to integrate rising powers such as China into the liberal international order effectively "helped China become a great power, thus undercutting unipolarity, which is essential for maintaining a liberal world order".<ref name="Mearsheimer 2020"/>{{rp|page=42}} Mearsheimer concluded by predicting that the liberal international order would be replaced by three distinct "realist orders" in the near term: "a thin international order", primarily concerned with arms control and managing the global economy, and two bounded orders, led respectively by China and the United States.<ref name="Mearsheimer 2020"/>{{rp|page=44}}

His claims about the liberal international order have sparked a lively debate and prompted responses from scholars such as [[Robert Jervis]],<ref>{{cite journal|last=Jervis|first=Robert|date=May 26, 2020|title=Liberalism, the Blob, and American Foreign Policy: Evidence and Methodology|url=https://doi.org/10.1080/09636412.2020.1761440|journal=[[Security Studies (journal)|Security Studies]]|volume=29|issue=3|pages=434–56|doi=10.1080/09636412.2020.1761440|s2cid=219432934|issn=0963-6412|access-date=December 14, 2020|archive-date=July 29, 2022|archive-url=https://web.archive.org/web/20220729000211/https://www.tandfonline.com/doi/full/10.1080/09636412.2020.1761440?cookieSet=1|url-status=live|url-access=subscription}}</ref> [[Christopher Layne]], Jennifer Pitts, [[Jack Snyder (political scientist)|Jack Snyder]], [[William Wohlforth|William C. Wohlforth]],<ref name=":2">{{cite web|last1=Layne|first1=Christopher|last2=Pitts|first2=Jennifer|last3=Snyder|first3=Jack|last4=Wohlforth|first4=William C.|last5=Mearsheimer|first5=John J.|last6=Jervis|first6=Robert|title=Roundtable 11-2 on The Great Delusion: Liberal Dreams and International Realities|url=https://issforum.org/roundtables/11-2-delusion|access-date=December 14, 2020|website=H-Diplo|date=September 23, 2019|publisher=ISSF|language=en-US|archive-date=January 14, 2021|archive-url=https://web.archive.org/web/20210114185037/https://issforum.org/roundtables/11-2-delusion|url-status=live}}</ref> and C. William Walldorf.<ref>{{cite journal|last=Walldorf|first=C. William|date=September 2020|title=The Great Delusion: Liberal Dreams and International Realities. By John J. Mearsheimer. New Haven: Yale University Press, 2018|url=https://www.cambridge.org/core/journals/perspectives-on-politics/article/abs/great-delusion-liberal-dreams-and-international-realities-by-john-j-mearsheimer-new-haven-yale-university-press-2018-328p-3000-cloth/6FD4E7A143B7AE5086042C03F83F49C4|journal=Perspectives on Politics|volume=18|issue=3|pages=893–94|doi=10.1017/S1537592720001814|s2cid=225178038|issn=1537-5927|access-date=December 14, 2020|archive-date=March 28, 2021|archive-url=https://web.archive.org/web/20210328195717/https://www.cambridge.org/core/journals/perspectives-on-politics/article/abs/great-delusion-liberal-dreams-and-international-realities-by-john-j-mearsheimer-new-haven-yale-university-press-2018-328p-3000-cloth/6FD4E7A143B7AE5086042C03F83F49C4|url-status=live|url-access=subscription}}</ref> In a critique of ''The Great Delusion'', Wohlforth writes that the book fails to make good on its core claim: "First, you cannot establish a causal connection between liberalism and imprudent foreign policy by looking at only liberalism and imprudent foreign policy. Because Mearsheimer subjects no other ideology to the same scrutiny to which he subjects liberalism, there is no way to know whether liberalism stands out this regard.... Second, you cannot establish that a permissive systemic environment is a necessary condition by looking only at cases that occur in a permissive strategic environment." Wohlforth also argues that ''The Great Delusion'' is inconsistent with Mearsheimer's ''Tragedy of Great Power Politics'': "Given that other great powers were destined to come back, and the theory's stipulation that their preferences (i.e., revisionism) are independent of anything the U.S. does (because nothing the U.S. does can reduce their uncertainty about U.S. intentions, and vice-versa), why would a unipolar U.S. not seek to expand and lock in gains when it had the opportunity to do so?"<ref name=":2" />

In his book The Great Delusion, Mearsheimer makes significant reference to [[Laurence Lampert]]'s nihilistic interpretation of [[Leo Strauss]] to illustrate a realist view of political philosophy.<ref>{{cite book |isbn=978-0300234190 |title=The Great Delusion: Liberal Dreams and International Realities |last1=Mearsheimer |first1=John J. |date=January 2018 |publisher=Yale University Press }}</ref>

===Hypothesis testing in international relations===
In 2013, Mearsheimer and [[Stephen Walt]] published "Leaving theory behind: Why simplistic hypothesis testing is bad for International Relations". They observe that in recent years, scholars of international relations have devoted less effort to creating and refining theories or using them to guide empirical research. Instead is a focus on what they call a simplistic hypothesis testing, which emphasizes discovering well-verified empirical regularities. They state that to be a mistake because insufficient attention to theory leads to misspecified empirical models or misleading measures of key concepts. They also point out that because of the poor quality data in international relations, it is less likely that the efforts will produce cumulative knowledge. It will lead to only a short-term gain and will make scholarship less useful to concerned citizens and policymakers.<ref name="Mearsheimer & Walt 2013">{{cite journal |last1=Mearsheimer |first1=John J. |last2=Walt |first2=Stephen M. |date=September 2013 |editor-last=Wight |editor-first=Colin |editor2-last=Hansen |editor2-first=Lene |editor3-last=Dunne |editor3-first=Tim |title=Leaving theory behind: Why simplistic hypothesis testing is bad for International Relations |url=http://mearsheimer.uchicago.edu/pdfs/Leaving%20Theory%20Behind%20EJIR.pdf |url-status=bot: unknown |journal=[[European Journal of International Relations]] |volume=19 |issue=3 |pages=427–457 |doi=10.1177/1354066113494320 |issn=1354-0661 |s2cid=52247884 |archive-url=https://web.archive.org/web/20140514053118/http://mearsheimer.uchicago.edu/pdfs/Leaving%20Theory%20Behind%20EJIR.pdf |archive-date=May 14, 2014 |access-date=February 26, 2023}}</ref>

Theories give a scholar an overarching framework of the myriad realms of activity. Theories are like maps and aim to simplify a complex reality, but unlike maps, theories provide a causal story by saying that one or more factors can explain a particular phenomenon. Theories attempt to simplify assumptions about the most relevant factors in the aim to explain how the world works. Some grand theories like realism or liberalism claim to explain broad patterns of state behavior, and middle-range theories focus on more narrowly defined phenomena like coercion, deterrence, and economic sanctions.<ref name="Mearsheimer & Walt 2013"/>

They list eight reasons why theories are important. The problems that arise from inadequate attention to theory is that it is impossible to construct good models or interpret statistical findings correctly. By privileging hypothesis testing, that is overlooked. It might make sense to pay more attention to hypothesis testing if it produced much useful knowledge about international relations, but Mearsheimer and Walt claim that this is not the case and that the simplistic hypothesis test is inherently flawed. Selection bias is also a problem that arise from inadequate attention to theory. To examine that more clearly, the authors point out James Fearson's critique of Paul Huth and Bruce Russett's analyses of extended deterrence. Mearsheimer and Walt also point out that contemporary international relations scholarship faces challenging measurement issues because of inadequate attention to theory and cause misleading measures. A few examples are given to support their claim, including Dan Reiter and Allan Stam's ''Democracies at War''.<ref name="Mearsheimer & Walt 2013"/>

Mearsheimer and Walt state that it is a sophisticated study but contains questionable measures of key concepts and that the measures to test their idea do not capture the theories' core concepts. Poor data, the absence of explanation, and the lack of cumulation are other problems, arising from inadequate attention to theory and focusing too much on simplistic hypothesis testing.<ref name="Mearsheimer & Walt 2013"/>

==Personal politics==
In 2019, Mearsheimer said that his preferred candidate in the [[2020 Democratic Party presidential primaries]] was [[Bernie Sanders]] and that [[Income inequality in the United States|economic inequality]] was the greatest problem faced by the United States.<ref name=":1">{{citation|title=Who's Your Candidate for President? {{!}}{{!}} Debate Clip| date=July 11, 2019 |url=https://www.youtube.com/watch?v=T99JmDelxs8|language=en|access-date=April 10, 2021|time=2:00|archive-date=April 10, 2021|archive-url=https://web.archive.org/web/20210410232146/https://www.youtube.com/watch?v=T99JmDelxs8|url-status=live}}</ref> He has said that he has very liberal views on [[LGBT rights in the United States|gay rights]] and [[Same-sex marriage|gay marriage]], and expressed support of [[gender equality]].<ref name="Glenn Loury">{{citation|title=A Dose of Reality on Ukraine {{!}} Glenn Loury & John Mearsheimer {{!}} The Glenn Show| date=October 27, 2023 |url=https://www.youtube.com/watch?v=cuhQYs_imyo|language=en|access-date=May 5, 2024|time=41:30}}</ref>

In a 2004 speech, Mearsheimer praised the British historian [[E. H. Carr]] for his 1939 book ''[[The Twenty Years' Crisis]]'' and argued that Carr was correct when he argued that international relations were a struggle of all against all, with states always placing their own interests first.<ref name="E.H. Carr vs. Idealism: The Battle Rages On">{{cite journal |last=Mearsheimer |first=John |year=2005 |title=E.H. Carr vs. Idealism: The Battle Rages On |journal=[[International Relations (journal)|International Relations]] |volume=19 |issue=1 |url=http://mearsheimer.uchicago.edu/pdfs/A0035.pdf |doi=10.1177/0047117805052810 |page=139 |s2cid=145242399 |doi-access=free |access-date=September 13, 2010 |archive-date=March 8, 2013 |archive-url=https://web.archive.org/web/20130308190515/http://mearsheimer.uchicago.edu/pdfs/A0035.pdf |url-status=live }}</ref> Mearsheimer said that Carr's points were still as relevant for 2004 as for 1939 and went on to deplore what he claimed was the dominance of "[[idealism in international relations|idealist]]" thinking about international relations in British academic life.<ref name="E.H. Carr vs. Idealism: The Battle Rages On"/>

===Noelle-Neumann controversy===
In October 1991, Mearsheimer was drawn into a bitter controversy at the University of Chicago regarding [[Elisabeth Noelle-Neumann]], then a visiting professor from Germany. Noelle-Neumann was a prominent German pollster and a leading academic on public opinion research, who authored the highly regarded book, ''[[Spiral of silence|The Spiral of Silence]].''  The debate centered on an article written for ''[[Commentary (magazine)|Commentary]]'' magazine by [[Leo Bogart]], "The Pollster and the Nazis", which described Noelle-Neumann's past employment as a writer and editor for the Nazi newspaper ''[[Das Reich (newspaper)|Das Reich]]'' from 1940 to 1942.<ref>{{cite web |last=Bogart |first=Leo |title=The Pollster & the Nazis |url=https://www.commentary.org/articles/leo-bogart/the-pollster-the-nazis/ |website=[[Commentary (magazine)|Commentary]] |access-date=17 November 2022 |date=August 1991}}</ref> Noelle-Neumann's response to the article was to claim that "texts written under a dictatorship more than 50 years ago cannot be read as they were in 1937, 1939 or 1941. Severed from the time and place where they were written, they are no longer real, for reality is in part based on time and place."<ref name="Elisabeth Noelle-Neumann 1991, p. 14">{{cite news |first=Elisabeth |last=Noelle-Neumann |title=Accused Professor Was Not a Nazi |newspaper=[[The New York Times]] |date=December 14, 1991 |page=14 |url=https://www.nytimes.com/1991/12/14/opinion/l-accused-professor-was-not-a-nazi-257591.html |access-date=February 17, 2017 |archive-date=October 22, 2017 |archive-url=https://web.archive.org/web/20171022033601/http://www.nytimes.com/1991/12/14/opinion/l-accused-professor-was-not-a-nazi-257591.html |url-status=live }}</ref>

As chairman of Chicago's political science department at the time, Mearsheimer sat down with Noelle-Neumann to discuss the article and the allegations. After meeting with her for over three hours, Mearsheimer publicly declared, "I believe that Noelle-Neumann was an anti-Semite",<ref name="Elisabeth Noelle-Neumann 1991, p. 14"/> and he spearheaded a campaign to ask her for an apology.<ref>Peter Wyden, "The Hitler Virus: The Insidious Legacy of Adolf Hitler," Arcade Publishing. 1998.</ref> He joined other University of Chicago faculty in writing a joint piece for ''Commentary'' that reacted to Noelle-Neumann's reply to the accusation against her. They declared that "by providing rhetorical support for the exclusion of Jews, her words helped make the disreputable reputable, the indecent decent, the uncivilized civilized, and the unthinkable thinkable."<ref>{{cite magazine |title=The Noelle-Neumann Case |magazine=[[Commentary (magazine)|Commentary]] |date=January 4, 1992 |department=Our Readers |url=http://www.commentarymagazine.com/article/the-noelle-neumann-case/ |author=Stephen M. Walt |display-authors=etal |access-date=August 8, 2014 |archive-date=August 9, 2014 |archive-url=https://web.archive.org/web/20140809103449/http://www.commentarymagazine.com/article/the-noelle-neumann-case/ |url-status=live }}</ref> Mearsheimer said, "Knowing what we know now about the Holocaust, there is no reason for her not to apologize. To ask somebody who played a contributing role in the greatest crime of the 20th century to say 'I'm sorry' is not unreasonable."<ref>{{cite news |title=Professor Is Criticized for Anti-Semitic Past |newspaper=[[The New York Times]] |date=November 28, 1991 |url=https://www.nytimes.com/1991/11/28/us/professor-is-criticized-for-anti-semitic-past.html |access-date=February 17, 2017 |archive-date=March 13, 2017 |archive-url=https://web.archive.org/web/20170313071151/http://www.nytimes.com/1991/11/28/us/professor-is-criticized-for-anti-semitic-past.html |url-status=live }}</ref>

==Selected bibliography==
{{main|John Mearsheimer bibliography}}

===Books===
* {{cite book|url=https://archive.org/details/conventionaldete0000mear|title=Conventional Deterrence|publisher=[[Cornell University Press]]|date=1983|isbn=0801415691|oclc=9394615}}
* {{cite book|url=https://books.google.com/books?id=uq1nV4XObpAC|title=Liddell Hart and the Weight of History|publisher=[[Cornell University Press]]|date=1988|isbn=080142089X|oclc=17953067}}
* ''[[The Tragedy of Great Power Politics]]''. [[W.W. Norton & Company]]. 2001. {{ISBN|0393020258}}. {{OCLC|46678382}}.
* ''[[The Israel Lobby and U.S. Foreign Policy]]''. [[Farrar, Straus and Giroux]]. 2007. {{ISBN|978-0374177720}}. {{OCLC|144227359}}.
* ''[[Why Leaders Lie|Why Leaders Lie: The Truth About Lying in International Politics]]''. [[Oxford University Press]]. 2011. {{ISBN|9780199758739}}. {{OCLC|593639329}}.
* {{cite book|title=[[The Great Delusion|The Great Delusion: Liberal Dreams and International Realities]]|publisher=[[Yale University Press]]|date=2018|isbn=978-0-300-23419-0}}
* ''How States Think: The Rationality of Foreign Policy''. [[Yale University Press]]. 2023. {{ISBN|978-0300269307}}.

===Journal articles===
* {{cite journal |date=1979 |first=John J. |last=Mearsheimer |display-authors=0 |title=Precision-guided munitions and conventional deterrence |pages=68–76 |doi=10.1080/00396337908441802 |journal=[[Survival (journal)|Survival]] |issn=0039-6338 |volume=21 |issue=2}}
* {{cite journal |date=1982 |first=John J. |last=Mearsheimer |display-authors=0 |title=Maneuver, Mobile Defense, and the NATO Central Front |pages=104–122 |doi=10.2307/2538609 |journal=[[International Security (journal)|International Security]] |issn=0162-2889 |volume=6 |issue=3 |jstor=2538609}}
* "[[Why the Soviets Can't Win Quickly in Central Europe]]". ''International Security''. '''7''' (1): 3–39. 1982. {{doi|10.2307/2538686}}. {{ISSN|0162-2889}}. {{JSTOR|2538686}}.
* {{cite journal |date=1984 |first=John J. |last=Mearsheimer |display-authors=0 |title=Nuclear Weapons and Deterrence in Europe |pages=19–46 |url=https://direct.mit.edu/isec/article-pdf/9/3/19/690864/isec.9.3.19.pdf |journal=International Security |volume=9 |issue=3|doi=10.2307/2538586 |jstor=2538586 }}
* {{cite journal |date=1986 |first=John J. |last=Mearsheimer |display-authors=0 |title=A Strategic Misstep: The Maritime Strategy and Deterrence in Europe |pages=3–57 |doi=10.2307/2538957 |journal=International Security |issn=0162-2889 |volume=11 |issue=2|jstor=2538957 }}
* {{cite journal |date=1988 |first=John J. |last=Mearsheimer |display-authors=0 |title=Numbers, Strategy, and the European Balance |pages=174–185 |doi=10.2307/2539001 |journal=International Security |issn=0162-2889 |volume=12 |issue=4|jstor=2539001 }}
* {{cite journal |last1= Mearsheimer|first1= John J.|date=1989 |title=[[Assessing the Conventional Balance: The 3:1 Rule and Its Critics]] |pages=54–89 |doi=10.2307/2538780 |journal=International Security |issn=0162-2889 |volume=13 |issue=4 |jstor=2538780}}
* {{cite journal |date=1990 |first=John J. |last=Mearsheimer |display-authors=0 |title=Back to the Future: Instability in Europe after the Cold War |pages=5–56 |url=https://users.metu.edu.tr/utuba/Mearsheimer.pdf |journal=International Security |issn=0162-2889 |volume=15 |issue=1|doi=10.2307/2538981 |jstor=2538981 }}
* {{cite journal |date=1990 |first1=John J. |last1=Mearsheimer |first2=Stanley |last2=Hoffmann |first3=Robert O. |author-link3=Robert Keohane |author-link2=Stanley Hoffmann |last3=Keohane |title=Back to the Future, Part II: International Relations Theory and Post-Cold War Europe |pages=191–199 |doi=10.2307/2538869 |journal=International Security |issn=0162-2889 |volume=15 |issue=2 |jstor=2538869}}
* {{cite journal |date=1990 |first1=John J. |last1=Mearsheimer |first2=Thomas |last2=Risse-Kappen |first3=Bruce M. |author-link3=Bruce Russett |author-link2=Thomas Risse |last3=Russett |title=Back to the Future, Part III: Realism and the Realities of European Security |pages=216–222 |doi=10.2307/2538912 |journal=International Security |issn=0162-2889 |volume=15 |issue=3 |jstor=2538912}}
* {{cite journal |date=1994 |first=John J. |last=Mearsheimer |display-authors=0 |title=The False Promise of International Institutions |pages=5–49 |url=https://www.mearsheimer.com/wp-content/uploads/2019/07/A0021.pdf |journal=International Security |issn=0162-2889 |volume=19 |issue=3|doi=10.2307/2539078 |jstor=2539078 }}
* {{cite journal |date=1995 |first=John J. |last=Mearsheimer |display-authors=0 |title=A Realist Reply |pages=82–93 |doi=10.2307/2539218 |journal=International Security |issn=0162-2889 |volume=20 |issue=1|jstor=2539218 }}
* {{cite journal |date=2005 |first=John J. |last=Mearsheimer |display-authors=0 |title=E.H. Carr vs. Idealism: The Battle Rages On |pages=139–152 |url=https://www.mearsheimer.com/wp-content/uploads/2019/07/A0035.pdf |journal=[[International Relations (journal)|International Relations]] |eissn=1741-2862 |volume=19 |issue=2 |doi=10.1177/0047117805052810}}
* {{cite journal |date=2006 |first=John J. |last=Mearsheimer |display-authors=0 |title=China's Unpeaceful Rise |pages=160–162 |url=https://ir101.co.uk/wp-content/uploads/2018/11/Mearsheimer-Chinas-Unpeaceful-Rise.pdf |journal=[[Current History]] |issn=0011-3530 |volume=105 |issue=690 |doi=10.1525/curh.2006.105.690.160}}
* {{cite journal |first1=John J. |last1=Mearsheimer |first2=Stephen M. |author-link2=Stephen Walt |last2=Walt |title=The Israel Lobby and U.S. Foreign Policy |edition=1st |pages=3–12 |url=https://edisciplinas.usp.br/pluginfile.php/4969992/mod_resource/content/1/Israel%20Lobby%20-%20LRB%20-%20Mearsheimer%20Waltz.pdf |journal=[[London Review of Books]] |issn=0260-9592 |volume=28 |issue=6}} Revised version published as {{cite journal |date=2006-09-14 |first1=John J. |last1=Mearsheimer |first2=Stephen M. |last2=Walt |display-authors=0 |title=The Israel Lobby and U.S. Foreign Policy |edition=2nd |pages=29–87 |doi=10.1111/j.1475-4967.2006.00260.x |journal=[[Middle East Policy]] |issn=1061-1924 |volume=13 |issue=3}}
* {{cite journal |date=2009-06-24 |first=John J. |last=Mearsheimer |display-authors=0 |title=Reckless States and Realism |pages=241–256 |url=https://www.mearsheimer.com/wp-content/uploads/2019/06/Reckless-States-and-Realism.pdf |journal=International Relations |issn=0047-1178 |volume=23 |issue=2|doi=10.1177/0047117809104637 }}
* {{cite journal |date=2010 |first=John J. |last=Mearsheimer |display-authors=0 |title=Why is Europe Peaceful Today |pages=387–397 |url=https://www.mearsheimer.com/wp-content/uploads/2019/06/Why-Is-Europe-Peaceful-Today.pdf |journal=[[European Political Science]] |eissn=1682-0983 |volume=9 |issue=3 |doi=10.1057/eps.2010.24}}
* {{cite journal |date=2010-12-08 |first=John J. |last=Mearsheimer |display-authors=0 |title=Gathering Storm: China's Challenge to US Power in Asia |pages=381–396 |url=https://academic.oup.com/cjip/article-pdf/3/4/381/1205490/poq016.pdf |journal=[[The Chinese Journal of International Politics]] |volume=3 |issue=4 |doi=10.1093/cjip/poq016}}
* {{cite journal |date=2013-09-05 |first1=John J. |last1=Mearsheimer |first2=Stephen M. |last2=Walt |title=Leaving theory behind: Why simplistic hypothesis testing is bad for International Relations |pages=427–457 |url=https://www.mearsheimer.com/wp-content/uploads/2019/06/Leaving-Theory-Behind-Working-Paper.pdf |doi=10.1177/1354066113494320 |journal=European Political Science |eissn=1682-0983 |volume=19 |issue=3}}
* {{cite journal |date=2017 |first=John J. |last=Mearsheimer |display-authors=0 |title=The False Promise of International Institutions |pages=5–49 |doi=10.2307/2539078 |journal=[[International Organization (journal)|International Organization]] |issn=1531-5088 |volume=19 |issue=3 |jstor=2539078}}
* {{cite journal |date=2019-04-01 |first=John J. |last=Mearsheimer |display-authors=0 |title=Bound to Fail: The Rise and Fall of the Liberal International Order |pages=7–50 |url=https://doi.org/10.1162/isec_a_00342 |journal=International Security |eissn=1531-4804 |volume=43 |issue=4|doi=10.1162/isec_a_00342 |url-access=subscription }}
* {{cite journal |date=2022-07-01 |first=John J. |last=Mearsheimer |display-authors=0 |title=The Causes and Consequences of the Ukraine War |pages=12–27 |url=https://www.cirsd.org/files/000/000/009/75/401141581c665840ebdf7c1304da4a9486211f99.pdf |journal=Horizons: Journal of International Relations and Sustainable Development |issn=2406-0402 |issue=21}}

==See also==
* [[Power (international relations)]]

==References==
{{Reflist}}

==Further reading==

* {{cite journal |date=2011 |first=Nikita |last=Romanovich Setov |title=Теория "Наступательного реализма" Дж. Миэршеймера |pages=54–61 |url=https://cyberleninka.ru/article/n/teoriya-nastupatelnogo-realizma-dzh-miersheymera |journal=ПОЛИТЭКС: Политическая Экспертиза |eissn=2618-9577 |volume=7 |issue=1 |trans-title=The Theory of "Offensive Realism" of John Mearsheimer}}
* {{cite thesis |date=2013-07-18 |first=Flávio |last=Pedroso Mendes |publisher=Instituto de Relações Internacionais |title=Lakatos, o Realismo Ofensivo e o Programa de Pesquisa Científico do Realismo Estrutural |location=São Paulo|doi=10.11606/T.101.2013.tde-17072013-152543 |doi-access=free }}
* {{cite book |date=2016-10-23 |first=Arash |last=Heydarian Pashakhanlou |chapter=Fear in the Works of Morgenthau, Waltz and Mearsheimer |pages=23–44 |doi=10.1007/978-3-319-41012-8_2 |title=Realism and Fear in International Relations: Morgenthau, Waltz and Mearsheimer Reconsidered |isbn=978-3-319-41012-8}}
* {{cite book |date=2016-10-23 |first=Arash |last=Heydarian Pashakhanlou |chapter=Mearsheimer and Fear |pages=91–115 |doi=10.1007/978-3-319-41012-8_5 |title=Realism and Fear in International Relations: Morgenthau, Waltz and Mearsheimer Reconsidered |isbn=978-3-319-41012-8}}
* {{cite journal |date=2023-05-18 |first1=Anton |last1=Gruber |first2=Alexander |last2=Tekles |first3=Lutz |last3=Bornmann |title=John Mearsheimer's academic roots: a reference publication year spectroscopy of a political scientist's oeuvre |pages=3867–3877 |journal=[[Military Review]] |volume=128 |issn=0026-4148 |issue=1 |doi=10.1007/s11192-023-04721-6 |doi-access=free}}

==External links==
{{wikiquote}}
{{Library resources box|about=no|by=yes}}

* {{official website}}
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{{John Mearsheimer}}
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