Rita Floyd is Professor of International Security and Ethics at the University of Birmingham and co-editor-in-chief of International Affairs, a Chatham House journal. Her publications include The Duty to Secure: From Just to Mandatory Securitization (Cambridge University Press, 2024) and The Morality of Security: A Theory of Just Securitization (Cambridge University Press, 2019). Laust Schouenborg is Associate Professor of International Politics and Director of the Centre for Statecraft and International Order at Roskilde University. His publications include The Scandinavian International Society: Primary Institutions and Binding Forces, 1815-2010 (Routledge, 2012), International Institutions in World History: Divorcing International Relations Theory from the State and Stage Models (Routledge, 2017) and, with Barry Buzan, Global International Society: A New Framework for Analysis (Cambridge University Press, 2018).