The end of the Cold War has opened up a 'real world laboratory' in which to test and refine general theories of international relations. Using the frameworks provided by structural realism, institutionalism and liberalism, The Post Cold War International System examines how major powers responded to the collapse of the Soviet Union and developed their foreign policies over the period of post-Cold War transition. The book argues that the democratic peace has begun to generate powerful socialisation effects due to the emergence of a critical mass of liberal democratic states since the end of the Cold War. The trend this has produced is similar to a pattern that classical realists have interpreted as 'bandwagoning' within a unipolar power structure. Case studies of Germany, China and Japan - identified as key states with the potential to challenge US dominance - provide evidence to support the assessment of international change. The author concludes by exploring the implications of September 11th for the analysis developed. This important volume argues that the end of the Cold War was a major historical turning point in the development of world politics with fundamental implications for the basic way in which the dynamics of the international system are conceptualised. It will interest all students and researchers of international politics.