Responding to the United States' costly and controversial intervention in Iraq, nine leading thinkers analyze the philosophical and practical dimensions of military intervention and explore how conventional wisdom has changed dramatically in recent years. The contributors draw from a wide array of disciplines, including philosophy, strategic studies, political science, and legal theory to ask the defining question of our day: When, if ever, is military intervention in the affairs of a sovereign nation ethically justifiable? Exploring the conflicts in Bosnia, Rwanda, Kosovo, East Timor, and most recently Iraq, this study is an innovative, coolheaded, and challenging take on one of the central issues facing the international community.