Introduction / Deen K. Chatterjee -- Prevention, preemption and other conundrums / Jean Bethke Elshtain -- After Caroline : NSS 2002, practical judgement and the politics and ethics of pre-emption / Chris Brown -- The case for preventive war / George R. Lucas, Jr -- Does international law make a moral difference? : the case of preventive war / Michael Blake -- Threat diplomacy in world politics : legal, moral, political, and civilizational challenges / Richard Falk -- Preventive war and trials of aggression / Larry May -- The conditions of liability to preventive attack / Jeff McMahan -- Are preventive wars always wrong? / Stephen Nathanson -- Ethics and legality : US prevention in Iran / Alex Newton -- Preventive violence : terrorism and humanitarian intervention / C. A. J. Coady -- Enough about just war, what about just peace? : the doctrine of preventive non-intervention / Deen K. Chatterjee.