Allen S. Weiner examines to what degree the global "war on terror" that has erupted since September 11, 2001 fits the "just war" doctrine of international relations or even whether it can properly be considered a war at all in terms of positive international law. Whether or not these labels apply is not merely a matter of academic debate, Weiner notes, but has broader implications for the international legal responsibilities of the United States in Afghanistan, Iraq and other theaters of the "war on terror."