Despite more than a century of alliance experience, American understanding of Japanese character, motivation, and purpose remains shaky. Japanese patterns of behavior have been a source of frequent puzzlement for Americans, whose history has been tightly intertwined with Japan but whose social values and national experience are utterly different. As Henry Kissinger pointed out, Japan’s unique civilization presents the United States with an ally possessing “intangibles of culture that America is ill-prepared to understand fully.”3 What are the driving forces that influence how Japan will act in the international system? Are there recurrent patterns in Japan’s modern experience that will help to explain how its leaders may respond to the emerging environment of world politics? These questions are relevant not only in looking back at Japan’s remarkable history but also in observing contemporary Japan and pondering its future at a critical time of change and uncertainty in Asia and the world. U.S. policymakers have been wrong about—or surprised by—Japan’s behavior many times in the past. As Japan returns to great-power politics and the alliance enters a new and problematic phase, a clear understanding of Japanese character and purpose and its new role takes on renewed importance.
