Abstract
Regional security studies of the Asia-Pacific commonly center upon China’s rise, leaving other actors underresearched. Among these is Japan, whose ongoing reinterpretation of its pacifist constitution may destabilize the region. This article employs Social Identity Theory, a social psychology theory of group behavior, to develop a unique framework that accounts for both the domestic and international constraints acting upon Japan’s foreign policy makers. By analyzing Japan’s foreign policy evolution through the lost decade of the 1990s into the changed landscape of the post-September 11th world, this article identifies a prevailing trend toward “normalization”. It is argued that Japan is on course to further distance itself from the pacifism embodied in Article 9 of its constitution.
 
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