Amitav Acharya is distinguished professor of international relations and the UNESCO chair in transnational challenges and governance at American University in Washington, D.C. He is an honorary professor at Rhodes University, South Africa, and a 2019–2020 Berggruen Institute fellow. His recent books include The Making of Global International Relations: Origins and Evolution of IR at Its Centenary (2019), coauthored with Barry Buzan; Constructing Global Order: Agency and Change in World Politics (2018); and The End of American World Order, 2nd ed. (2018). aacharya@american.edu

Michael Barnett is university professor of international affairs and political science at the George Washington University. Among his books are Eyewitness to a Genocide: The United Nations and Rwanda (2002); Empire of Humanity: A History of Humanitarianism (2011); and the forthcoming edited volume Human Rights and Humanitarianism: Worlds of Differences? barnett@email.gwu.edu

Daniel R. Brunstetter is associate professor of political science at the University of California, Irvine. His work on just war thinking spans the historical to the contemporary, including themes such as the history of the just war tradition, armed drones, and contemporary debates about the use of limited force. His work is published in Ethics & International Affairs, Journal of Military Ethics, Political Studies, Review of International Studies, International Journal of Human Rights, and elsewhere. He has co-edited two volumes that cover a variety of themes related to the ethics of war: The Ethics of War and Peace Revisited: Moral Challenges in an Era of Contested and Fragmented Sovereignty (2018) and Just War Thinkers: From Cicero to the 21st Century (2018). dbrunste@uci.edu

Tanisha M. Fazal is associate professor of political science at the University of Minnesota. Her scholarship focuses on sovereignty, international law, and armed conflict. Fazal's current research analyzes the effect of improvements in medical care in conflict zones on the long-term costs of war. She is the author of State Death: The Politics and Geography of Conquest, Occupation, and Annexation (2007), which won the 2008 Best Book Award in the American Political Science Association's Conflict Processes section; and Wars of Law: Unintended Consequences in the Regulation of Armed Conflict (2018), winner of the 2019 Best Book Award in the International Studies Association's International Law section and the 2019 Best Book Award in the American Political Science Association's International Collaboration section. fazal007@umn.edu

Eric A. Heinze is professor and the Max and Heidi Berry Chair of International Studies at the University of Oklahoma. His research deals with ethical and legal issues in international relations with a focus on international norms pertaining to armed conflict, human rights, and genocide and mass atrocity. He is the author of Global Violence: Ethical and Political Issues (2016) and Waging Humanitarian War: The Ethics, Law, and Politics of Humanitarian Intervention (2009); and the co-editor of the Routledge Handbook of Ethics and International Relations (2018). eheinze@ou.edu

Danielle L. Lupton is assistant professor of political science at Colgate University and co-editor of International Studies Perspectives. Her research investigates the influence of individual leaders on international security and foreign policy. She is the author of Reputation for Resolve: How Leaders Signal Determination in International Politics (2020). Her research is also published in Political Analysis, International Interactions, Political Research Quarterly, and the Journal of Global Security Studies. Her policy-relevant writings have been featured on the Foreign Policy website, the Washington Post’s “Monkey Cage” site, and Political Violence @ a Glance. dlupton@colgate.edu

Rhiannon Neilsen is a doctoral candidate at the University of New South Wales. In 2019, she was awarded the Australian Federation of Graduate Women's Barbara Hale Fellowship to participate in a visiting doctoral program at the University of Oxford for 2019–2020. Rhiannon's doctoral thesis examines the ethics of “cyber-humanitarian interventions” for the prevention of mass atrocity crimes in the twenty-first century. Her published work has focused on political approaches to human rights, genocide prevention, and moral injury. r.neilsen@adfa.edu.au

Wendy Pearlman is associate professor of political science at Northwestern University, where she specializes in Middle East politics. She is the author of three books: Violence, Nonviolence, and the Palestinian National Movement (2011); Occupied Voices: Stories of Everyday Life from the Second Intifada (2003); and We Crossed a Bridge and It Trembled: Voices from Syria (2017); and the coauthor, with Boaz Atzili, of Triadic Coercion: Israel's Targeting of States That Host Nonstate Actors (2018). She has conducted research in Spain, Germany, Lebanon, Jordan, Turkey, Israel, and the West Bank and Gaza Strip. pearlman@northwestern.edu

Kenneth A. Reinert is professor of public policy at the Schar School of Policy and Government at George Mason University. Professor Reinert has published over eighty papers in professional journals and edited volumes in the areas of international trade, economic development, and environmental policy. He is author of An Introduction to International Economics: New Perspectives on the World Economy (2012, 2020) and No Small Hope: Towards the Universal Provision of Basic Goods (2018), and coauthor, with Ian Goldin, of Globalization for Development: Meeting New Challenges (2012). kreinert@gmu.edu

Jean-Baptiste Jeangène Vilmer is the director of the Institute for Strategic Research (IRSEM) at the French Ministry of the Armed Forces, a nonresident senior fellow at the Atlantic Council, and an adjunct professor at the Science Po's Paris School of International Affairs. Trained in three disciplines—philosophy (in which he received a BA, MA, and PhD); law (having received an LLB and LLM, and continued on with postdoc research); and political science (PhD)—he has held positions at the French Ministry of Foreign Affairs, the Faculty of Law at McGill university, and the Department of War Studies at King's College London. His articles have been published in International Affairs, Global Governance, and the Washington Quarterly, among others. jeanbaptiste.jeangenevilmer@sciencespo.fr