Japan and Nuclear Nonproliferation

Abstract

Abstract This chapter analyzes the evolution of Japanese policies toward nuclear weapons, nuclear nonproliferation, and nuclear disarmament. It traces the development of Japan’s Three Non-Nuclear Principles and examines how these principles relate to Japan’s security alliance with the United States. By examining the interaction of domestic politics and changes in the international environment, the chapter shows how Japan has reaffirmed its status as a non-nuclear-weapons state. Japan’s promotion of nuclear power to meet its energy needs has rested on an explicit policy to forgo nuclear weapons and a commitment to the international nuclear nonproliferation regime. At the same time, Japan’s reliance on US extended nuclear deterrence and its concerns about regional security threats have tempered its support for nuclear disarmament initiatives.