With the passing of the Cold War, a chapter in the history of nuclear deterrence has come to an end. Nuclear weapons remain, however, and nuclear deterrence will again be practiced. Rather than simply assume that the policy of deterrence has worked we need to learn the proper lessons from history in order to ensure that its mistakes are not repeated. Professor Lee furnishes us with the kind of analysis that will enable us to learn those lessons. This book is the first post Cold War assessment of nuclear deterrence. It provides a comprehensive normative understanding of nuclear deterrence policy, examining both its ethical and strategic dimensions. The book poses the question: What kind of nuclear policy, if any, deserves both moral and prudential endorsement?