While the Cold War is over, many of the problems it spawned live on. One of the worst of these is the continued presence of vast nuclear arsenals in the United States and Russia. How did the thousands of American bombs come into existence and how did they so rapidly become the United States' first line of defence?;Drawing extensively on previously classified material, Samuel R. Williamson Jr. and Steven L Rearden have written a history of this crucial period. They show how American policymakers, and least of all President Truman, never expected nuclear weapons to play such a major strategic role. Yet by relying on the atomic bomb time and again to shore up US defences in the face of worsening relations with the Soviet Union, rather than accept seemingly more costly conventional alternatives, Truman found himself ultimately with no other choice.;The authors not only document and analyze the origins and early evolution of US nuclear strategy, but they also demonstrate the close relationship between decisions affecting such diverse matters as foreign policy, new technologies and the budgetary process. The result is an analysis containing new insights and timely reminders of the myriad complications created by reliance on nuclear weapons.

The United States took almost a decade after Hiroshima and Nagasaki to develop a coherent strategy of nuclear deterrence. This comprehensive study by two careful and well-informed historians provides the best explanation we have of why this process took so long; it also suggests the inherent difficulties of relying on nuclear weapons to provide security in the first place. Required reading for anyone interested in the early history of the nuclear era.