John J. Mearsheimer is the R. Wendell Harrison Distinguished Service Professor of Political Science at the University of Chicago, where he has taught since 1982. He graduated from West Point (1970), has a PhD in political science from Cornell University (1981), and has written extensively about security issues and international politics.

Among his six books, The Tragedy of Great Power Politics (2001, 2014) won the Joseph Lepgold Book Prize; and The Israel Lobby and U.S. Foreign Policy (with Stephen M. Walt, 2007), made the New York Times bestseller list and has been translated into twenty-four languages. His latest book is The Great Delusion: Liberal Ideals and International Realities (2018), which won the 2019 Best Book of the Year Award from the Valdai Discussion Conference, Moscow.

He has written numerous articles and op-eds that have appeared in International Security, London Review of Books, Foreign Affairs, The Financial Times, and The New York Times. In 2003, he was elected to the American Academy of Arts and Sciences, and in 2020, he won the James Madison Award, which is given once every three years by the American Political Science Association to “an American political scientist who has made a distinguished scholarly contribution to political science.”

“If there had been no decision to move NATO eastward to include Ukraine, Crimea and the Donbass would be part of Ukraine today, and there would be no war.”