Drawing on recently declassified documents and extensive interviews with Soviet and American policy-makers, among them several important figures speaking for public record for the first time, Ned Lebow and Janice Stein cast new light on the effect of nuclear threats in two of the tensest moments of the Cold War: the Cuban Missile Crisis of 1962 and the confrontations arising out of the Arab-Israeli war of 1973. They conclude that the strategy of deterrence prolonged rather than ended the conflict between the superpowers.