Drawing on newly opened archives and the reminiscences of the major players, John Lewis Gaddis explains not just what happened but why—from the months in 1945 when the U.S. and the U.S.S.R. went from alliance to antagonism to the barely averted holocaust of the Cuban Missile Crisis to the maneuvers of Nixon and Mao, Reagan and Gorbachev. Brilliant, accessible, almost Shakespearean in its drama, The Cold War stands as a triumphant summation of the era that, more than any other, shaped our own.