Please see the newest, replacement volume Leashing the Dogs of War, A resurgence of ethnonationalism, the collapse of empires the outbreak of humanitarian crises, and growing pressures on weakened states are substantially altering world politics. While a new international system has not yet emerged to replace the Cold War system, conflict within and between states continues at a high level, posing a sever challenge to diplomats and citizens in the United States and other countries.In response to numerous requests from teachers and practitioners, and with the assistance of an advisory board of eminent scholars and policymakers, the editors have developed this unique and comprehensive volume. Some 40 essays probe traditional and emerging sources of conflict and explore the full range of instruments, actors, techniques, and policies for managing and resolving conflict ranging from combat intervention, collective security, and UN peacekeeping to preventive diplomacy problem-solving workshops, and the strengthening of civil society.The book includes seven case studies and numerous chapters that feature comparative and cross-cutting analysis. The purpose of the volume is to fill the vacuum created by recent global change that has dramatically altered the context for both the teaching and the practice of international relations. It will support teaching of international relations at colleges and universities and be equally useful to diplomats, military officers, international civil servants, and practitioners of humanitarian relief and conflict resolution in nongovernmental organizations.