In this groundbreaking analysis, Stuart Croft brings the subject of arms control into the era of complex, multi-polar international relations. He moves beyond the narrow definitions of the phenomenon associated with the Cold War to show how it not only has a long past, but also a clear future. The author begins by tracing the history of agreements between polities over weapons back to ancient times. An understanding of this history allows him to put forward a typology of arms control. It occurs at the end of major conflicts, stabilises balances between states, develops norms of behaviour, manages weapons proliferation, and acts as a tool of international organisations. Stuart Croft examines the evolution of these five qualitatively different strategies, and applies the typology to arms control agreements in the post-Cold War world. This definitive new study will be of interest to students in international relations and security studies, as well as specialists in these disciplines.