Ryan A. Musto is a MacArthur Nuclear Security Fellow with the Center for International Security and Cooperation (CISAC) at Stanford University. He holds a Ph.D. in history from The George Washington University, master’s degrees in international and world history from Columbia University and the London School of Economics, and a B.A. (hons.) in history from NYU. Ryan has served as a Stanton Nuclear Security Fellow with the Security Studies Program at MIT and as a Nuclear Security Fellow with Fundação Getúlio Vargas in São Paulo, Brazil. His specializations include nuclear history, Cold War international history, and the history of U.S. foreign relations. Ryan’s work has been published in Diplomatic History, Diplomacy & Statecraft, Bulletin of the Atomic Scientists, and Americas Quarterly, amongst other outlets. Ryan is currently completing a book manuscript on the international history of regional denuclearization.