Roger D. Petersen is the Arthur and Ruth Sloan Professor of Political Science. He holds BA, MA, and PhD degrees from the University of Chicago and has taught at MIT since 2001. Petersen focuses on within-state conflict and violence. He has written three books: Resistance and Rebellion: Lessons from Eastern Europe (2001), Understanding Ethnic Violence: Fear, Hatred, Resentment in Twentieth Century Eastern Europe (2002), and Western Intervention in the Balkans: The Strategic Use of Emotion in Conflict (2011). He teaches courses on military intervention, civil-military relations, politics and conflict in the Balkans and the Middle East, and emotions and politics.