Ahsan I. Butt was a nonresident senior fellow at the Atlantic Council’s South Asia Center and an associate professor at the Schar School of Policy and Government at George Mason University. His main interests lie in nationalism, political violence, climate change, and South Asia. His first book, Secession and Security: Explaining State Strategy Against Separatists, was published by Cornell University Press in 2017 and won the 2019 International Studies Association award for best book in international security studies. His writing has appeared in journals such as International Organization, Journal of Global Security Studies, Journal of Strategic Studies, Politics and Religion,and Security Studies, as well as popular outlets such as the New York Times, the Washington Post, Al Jazeera, the National Interest, Foreign Policy, and the Diplomat. His researchhas received generous support from the Belfer Center for Science and International Affairs at the Harvard Kennedy School, the Mellon Foundation, the Stanton Foundation, and the United States Institute of Peace. He is currently writing his second book, which focuses on the construction of nationalism in schools and in history textbooks.