Stephen Walt

Stephen Martin Walt (born July 2, 1955) is an American political scientist serving as the Robert and Renee Belfer Professor of international relations at the Harvard Kennedy School.

A member of the realist school of international relations, Walt has made important contributions to the theory of neorealism and authored the balance-of-threat theory.

Books that he has authored or coauthored include Origins of Alliances, Revolution and War, and The Israel Lobby and U.S. Foreign Policy.