JOHN MEARSHEIMER is the R. Wendell Harrison Distinguished Service Professor of Political Science at the University of Chicago. He has written extensively about security issues and international politics. His books include The Tragedy of Great Power Politics, which won the Joseph Lepgold Book Prize, and The Israel Lobby and U.S. Foreign Policy. Mearsheimer’s latest books are How States Think: The Rationality of Foreign Policy; and The Great Delusion: Liberal Dreams and International Realities, which won the 2019 Best Book of the Year Award from the Valdai Discussion Conference. 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.”