Ronald Reagan has left office and the fate of the Strategic Defense Initiative (SDI) is still undecided. This book provides an essential basis for evaluating the policy choices that the new U.S. leaders will face with respect to SDI through the 1990s. It explores key security and policy issues related to SDI including the emergence of SDI, technical evolution of the program since 1983, R & D in the 1990s, Soviet responses to SDI, issues for the allies,...