HIGASHIOSAKA, OSAKA PREF. – The credibility of the U.S. extended nuclear deterrence is a critical issue that goes beyond the question of Japanese psychology and perception. It potentially influences the direction of Japan’s security policy, compellence and/or attacks by adversaries on Japan, and even Asian stability.
Japan’s faith in the extended U.S. nuclear deterrence was shaken even before the Trump era. Since the end of the Cold War, China has steadily modernized and built up its nuclear forces, and the survivability and penetrability of its strategic nuclear forces targeting the United States has improved.
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