Christopher F. Gelpi is an Associate Professor of Political Science at Duke University. His primary research interests are the sources of international militarized conflict and strategies for international conflict resolution. He is currently engaged in research on American public opinion and the use of military force, and on statistical models for forecasting military conflict. He has also published works on American civil-military relations and the use of force, the impact of democracy and trade on international conflict, the role of norms in crisis bargaining, alliances as instruments of control, diversionary wars, deterrence theory, and the influence of the international system on the outbreak of violence. He is author of The Power of Legitimacy: The Role of Norms in Crisis Bargaining (Princeton University Press, 2003) and co-author (with Peter D. Feaver) of Choosing Your Battles: American Civil-Military Relations and the Use of Force (Princeton University Press, 2004). Some of his other works have appeared in the American Political Science Review, the Journal of Conflict Resolution and Political Science Quarterly.