These essays from the journal International Security examine the effects of the nuclear revolution on the international system and the role nuclear threats have played in international crises. The authors offer important new interpretations of the role of nuclear weapons in preventing a third world war, of the uses of atomic superiority, and of the effectiveness of nuclear threats.Sean M. Lynn-Jones is the Managing Editor of International Security. Steven E. Miller is a Senior Research Fellow at the Stockholm International Peace Research Institute and co-editor of the journal. Stephen Van Evera is an Adjunct Fellow at the Center for Science and International Affairs at Harvard University.Contributors: John Mueller. Robert Jervis. Richard K. Betts. Marc Trachtenberg. Roger Digman. Scott D. Sagan. Gordon Chang. H. W. Brands, Jr. Barry Blechman and Douglas Hart.