This book discusses issues regarding the use of force in general, the implications of a shift in the use of nuclear weapons from deterrence to coercion, and a focus on nonproliferation to the neglect of disarmament. The authors discuss the role of the United Nations in controlling the spread and use of WMDs, the regional dynamics of proliferation concerns in Northeast Asia and the Middle East, and the threats posed by the possible acquisition of nuclear weapons and missiles by nonstate actors.