This book presents different views on nuclear disarmament and arms control and a brief history of nuclear non-proliferation policy and the nuclear test ban issue. It describes the preparations for and results of the 1990 Non-Proliferation Treaty Review Conference and the 1991 Partial Test Ban Treaty Amendment Conference. With a view to 1995, it assesses the chances for consensus or dissension regarding regarding nuclear proliferation and the test ban, and the prospects for an extension of NPT. It concludes by examining the future and the threat of a new North-South divide over these issues.