Book

2007. State Death: The Politics and Geography of Conquest, Annexation, and Occupation. Princeton: Princeton University Press. Winner of the 2008 Best Book Award, Conflict Processes Section, American Political Science Association.
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Articles

2016. “An Occult of Irrelevance? Multimethod Research and Engagement with the Policy World.” Security Studies. 25:1. pp. 34-41. Featured in The Washington Post.

2015. “A Particular Difference: European Identity and Civilian Targeting.” British Journal of Political Science. 45:1, pp. 829-51. With Brooke C. Greene.

2014. “Dead Wrong? Battle Deaths, Military Medicine, and Exaggerated Reports of War's Demise.” International Security. 39:1, pp. 95-125. Featured in El País (Spain's leading daily), The New Republic and The Dish.

2014. “Membership Has its Privileges: The Changing Benefits of Statehood.” International Studies Review. 16:1, pp. 79-106. With Ryan D. Griffiths.

2013. “The Demise of Peace Treaties in Interstate War.” International Organization. 67:4, pp. 695-724. Featured in Slate.
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2012. “Why States No Longer Declare War.” Security Studies. 21:4, pp. 557-93. Featured in The Atlantic.
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2004. “State Death in the International System.” International Organization. 58:2, pp. 311-44. Reprinted in Handler, Scott, ed. 2012. International Politics: Classic and Contemporary Readings. Washington, DC:  CQ Press. Featured in USA Today.

Book Chapters

2013. “Why Are Failed States’ Borders Stable Against External Predation?” In Beck, Robert J., ed. Law and Disciplinarity: Thinking Beyond Borders. New York: Palgrave MacMillan.

Other Publications

2014. "Nonfatal Casualties and the Changing Costs of War." Policy Brief, Belfer Center for Science and International Affairs, Harvard Kennedy School, November.

2014. “The Fall and Rise of Peace Treaties.” AJIL Unbound. May 1.

2008. “A State of One’s Own: The Rise of Secession Since World War II.” Brown Journal of World Affairs. 15:1, pp. 199-209. With Ryan D. Griffiths.