Jeffrey Lewis

Distinguished Research Fellow - National Security Program

Dr. Jeffrey Lewis is a Distinguished Fellow at the Foreign Policy Research Institute and a Distinguished Scholar of Global Security at Middlebury College.

Dr. Lewis is also a member of the National Academies of Science, Engineering and Medicine’s Committee on International Security and Arms Control (CISAC), which conducts dialogues with counterparts in China, Russia, and India, and serves on the Frontier Red Team for Anthropic, an artificial intelligence company.

From 2022 to 2025, Dr. Lewis was a member of the U.S. Secretary of State’s International Security Advisory Board.

He is the author of two scholarly books, The Minimum Means of Reprisal: China’s Search for Security in the Nuclear Age (MIT Press, 2007) and Paper Tigers: China’s Nuclear Posture (International Institute of Strategic Studies, 2014), as well as a novel of speculative fiction, The 2020 Commission on the North Korean Nuclear Attacks on the United States (Mariner, 2018).

Previously, Dr. Lewis was the director of the Nuclear Strategy and Nonproliferation Initiative at the New America Foundation and executive director of the Managing the Atom Project at the Belfer Center for Science and International Affairs at Harvard University. He has also worked in the Office of the Undersecretary of Defense for Policy and at the Center for Strategic and International Studies.

Dr. Lewis received a B.A. in Philosophy and Political Science from Augustana College and a Ph.D. in Policy Studies from the University of Maryland.