Books
2024. Military Medicine and the Hidden Costs of War. New York: Oxford University Press.
2018. Wars of Law: Unintended Consequences in the Regulation of Armed Conflict. Ithaca: Cornell University Press. Statistical Appendix. Replication Data.
Winner of the 2019 Best Book Award, International Collaboration Section, American Political Science Association.
Winner of the 2019 Best Book Award, International Law Section, International Studies Association.
Translated into German (Hamburger Edition, 2019).
2007. State Death: The Politics and Geography of Conquest, Occupation, and Annexation. Princeton: Princeton University Press. Replication Data.
Winner of the 2008 Best Book Award, Conflict Processes Section, American Political Science Association.
Articles
2022. “A Course-Long Online Simulation: The International Relations of COVID-19.” With Maria Sanchez. Journal of Political Science Education. Doi: 10.1080/15512169.2022.2136095.
2022. “The Return of Conquest? Why the Future of Global Order Hinges on Ukraine.” Foreign Affairs. 101:3, pp. 20–27.
2021. “The Decline in Declarations of War: An Exchange.” Security Studies. 30:5, pp. 893–904.
2021. “What You Fight for Shapes How You Fight.” Proceedings of the American Society of International Law Annual Meeting. 115, pp. 58–60.
2021. “#SorryNotSorry: Why states neither confirm nor deny responsibility for cyber operations.” European Journal of International Security. 6:4, pp. 401–17. With Joseph Brown.
2021. “Life and Limb: New Estimates of Casualty Aversion in the US.” International Studies Quarterly. 65:1, pp. 160–72.
2021. “The political and security dimensions of the humanitarian health response to violent conflict.” The Lancet. 397:10273, pp. 511–21. Paul H. Wise (Lead Author). With Annie Shiel, Nicole Southard, Eran Bendavid, Jennifer Welsh, Stephen Stedman, Tanisha Fazal, Vanda Felbab-Brown, David Polatty, Ronald J Walman, Paul B Spiegel, Karl Blanchet, Rita Dayoub, Aliyu Zakayo, Michele Barry, Daniel Martinez Garcia, Heather Pagano, Robert Black, Michelle F Gaffey, and Zulfiquar A Bhutto.
2020. “Health Diplomacy in Pandemical Times.” International Organization. 74:S1, pp. E78–E97.
2020. “Lengthening the Shadow of International Law.” Ethics & International Affairs. 34:2, pp. 229–40.
2019. “War is Not Over: What the Optimists Get Wrong About Conflict.” Foreign Affairs. 98:6, pp. 74–83. With Paul Poast.
2019. “Homelands versus Minelands: When and Why Do Rebel Groups Commit to Adhere to International Humanitarian Law?” Journal of Global Security Studies. 4:2, pp. 149–68. With Margarita Konaev. Replication Data.
2018. “Religionist Rebels and the Sovereignty of the Divine.” Dædalus. 147:1, pp. 25–35.
2018. “Go Your Own Way: Why Rising Separatism Might Lead to More Conflict.” Foreign Affairs. 97:4, pp. 113–23.
2017. “Rebellion, War Aims, and the Laws of War.” Dædalus. 146:1, pp. 1–12.
2016. “An Occult of Irrelevance? Multimethod Research and Engagement with the Policy World.” Security Studies. 25:1, pp. 34–41.
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.
2014. “Membership Has its Privileges: The Changing Benefits of Statehood.” International Studies Review. 16:1, pp. 79–106. With Ryan D. Griffiths.
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. 108, pp. 46–51.
2013. “The Demise of Peace Treaties in Interstate War.” International Organization. 67:4, pp. 695–724. Replication Data.
2012. “Why States No Longer Declare War.” Security Studies. 21:4, pp. 557–93. Replication Data.
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.
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.
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.