Alexander Lanoszka is Assistant Professor in the Department of Political Science and the Balsillie School of International Affairs at the University of Waterloo in Canada and Associate Fellow at the UK-based Council on Geostrategy. His research addresses alliance politics and military strategy. His books include Atomic Assurance: The Alliance Politics of Nuclear Proliferation (Cornell, 2018) and Military Alliances in the Twenty-First Century (Polity, 2022). He received his PhD from Princeton University.