Fundamental changes in international relations during 1989-90 toppled the pillars of the security policy paradigm which had characterised the Cold War. That convulsion swept aside the last of many nuclear debates to rend NATO. Immediately the nuclear problems which had plagued the 1980s were tossed aside. Yet many important and interesting elements of the decade's nuclear history had not been fully explained. With the nuclear issue's rapid shift to irrelevancy, previously hidden information on the period became at once less secret and more easily available. Thus through extensive interviews with participants and careful analysis of open sources, missing parts of the puzzle emerged. This book is intended to provide a fuller explanation of NATO's last great nuclear debate.