This article traces the fundamental shifts in Japanese contingency planning for war under pressure from the start of the Bush administration and particularly since 9/11. The author shows that the Koizumi administration's security policy, and particularly the War Contingency Laws that passed the Diet on May 15, 2003, are not only in violation of the no war clause in the Japanese Constitution but constitute a dramatic extension of the U.S.-Japan security relationship that is at odds with the interests of the people of Japan and Asia. Asai Motofumi, the former head of the Foreign Ministry's China Division, is a professor at Meiji Gakuin and the author of numerous articles and books on Japanese global policy. The article appeared in the February, 2003 issue of Gunshuku Mondai Kenkyujo.