Fahd Humayun is a fellow at the Yale Jackson School of Global Affairs’ Nuclear Security Program, part of International Security Studies.

Fahd is a Neubauer Faculty Fellow and Assistant Professor of Political Science at Tufts University, where his research looks at the domestic sources of interstate security crises and conflict, with a special focus on nuclear rivalries in South Asia. He is a recipient of a 2022 Nuclear Security Grant from the Stanton Foundation. He received his PhD in Political Science from Yale University in 2022. He also holds an MPhil in International Relations from the University of Cambridge, and an BSc (Hons) in International Relations & History from the London School of Economics.

His research focuses on the question of when do normative democratic processes, such as the alternation of political parties in power, erode normative elite constraints on external aggression including the use of nuclear force? This project seeks to investigate the relationship between democratic institutionalization and crisis escalation in three nuclear-armed polities: India, Pakistan, and the United States, and argues that the conjunction of partisan antipathy and populist majoritarian pressures in nuclear democracies erodes democratic constraints on the use of force as well as the nuclear taboo.