Daniel H. Nexon is a Professor at Georgetown University, with a joint appointment in the Department of Government and the School of Foreign Service. He is the author of The Struggle for Power in Early Modern Europe: Religious Conflict, Dynastic Empires, and International Change (Princeton University Press, 2009), which won the International Security Studies Section (ISSS) Best Book Award for 2010, and co-author of Exit from Hegemony: The Unraveling of the American Global Order (Oxford University Press, 2020).