Christopher Phillips

Christopher Phillips is a Lecturer in the History of Warfare at Aberystwyth University, and the founder of ‘Not enemies, but friends?’ Christopher’s interest in coalition warfare stems from his research into the British experience of transport and supply management during the First World War. He has published articles in War & Society and the British Journal for Military History among others, and is the author of Civilian Specialists at War: Britain’s Transport Experts in the First World War, published in 2020 by the University of London Press and available open access via the Humanities Digital Library.

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J Andrés Gannon

J. Andrés Gannon is a Stanton nuclear security fellow at the Council on Foreign Relations (CFR). Gannon’s research broadly focuses on the political origins of military power, what capabilities states arm themselves with and why, and how the distribution of military capabilities affects states’ conduct in international affairs. His prior research on coalition warfare has analyzed warfare as tie-strengthening in the context of the 2001 Afghanistan war and his current research is on nuclear alliances and burden-sharing in East Asia. In fall 2023, he will be an assistant professor of political science at Vanderbilt University and a faculty affiliate at the Data Science Institute. Previously, he was an International Security Program Postdoctoral Research Fellow at the Harvard Kennedy School’s Belfer Center for Science and International Affairs, a Hans J. Morgenthau Research Fellow at the Notre Dame International Security Center, and a PhD Eisenhower Defence Fellow at the NATO Defence College. His academic work has been published in International Studies Quarterly, the Journal of Conflict Resolution, and the Oxford Research Encyclopedia of Politics.

Contact: Website


John Gill

John Gill (Jack) is an associate fellow at the International Institute for Strategic Studies in London and an adjunct professor at the Near East–South Asia Center for Strategic Studies in Washington DC. A former U.S. Army officer, he has authored several studies of South Asia security issues (most recently co-author of the monograph Nuclear Deterrence and Stability in South Asia: Perceptions and Realities, IISS, 2021) as well as books, chapters and papers on Napoleonic military history topics such as The Battle of Znaim: Napoleon, the Habsburgs and End of the War of 1809, (London, 2020).


Dawid Gralik

Dawid Gralik is a PhD student at Adam Mickiewicz University in Poznań, Poland. His research interests are focused on the military history of the 18th-20th centuries, particularly the Napoleonic Wars, and the presence of historical content in contemporary culture. As part of his dissertation, he studies the officer corps of the Duchy of Warsaw army. Since 2021, he has been working on a grant focused on historical narratives on the Internet in Central and Eastern Europe. He was awarded a scholarship of the Fondation Napoléon.

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Ryan Grauer

Ryan Grauer is an Associate Professor of International Affairs in the Graduate School of Public and International Affairs at the University of Pittsburgh. His research examines the sources and use of military power in the international arena by individual actors and collective entities. He is the author of Commanding Military Power (Cambridge University Press, 2016) and editor of Understanding Battlefield Coalitions (Routledge, forthcoming; with Rosella Cappella Zielinski). His work has been published in World Politics, the European Journal of International RelationsSecurity Studies, the Journal of Strategic Studies,and the Journal of Global Security Studies,among other outlets. At present, Grauer is working on projects examining the creation, organization, and operation of multinational coalitions in battle; the causes and consequences of soldier surrender in war; and the scope and intensity of uses of force by democracies. He received his PhD from the University of Pennsylvania and his BA from the University of Chicago.  He has previously been Fellow in the Modern War Institute at the United States Military Academy and an Academic Visitor in Nuffield College at the University of Oxford.

Contact: Twitter | Mastodon


Chris Kempshall

Dr Chris Kempshall is a public historian and author who specialises in transnational experiences of warfare and modern media representations of history. Within the field of coalition warfare he researches relations between allied soldiers, with specific focus on the First World War. This was the subject of his book British, French, and American Relations on the Western Front 1914-1918.

He is also the author of The First World War in Computer Games and The History and Politics of Star Wars: Death Stars and Democracy.

He is currently working as a Postdoctoral Research Fellow at the University of Exeter and is also a Senior Research Fellow at the Centre for Army Leadership, Royal Military Academy Sandhurst.

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Patrick A. Mello

Patrick A. Mello is Assistant Professor of International Security at the Department of Political Science and Public Administration of the Vrije Universiteit Amsterdam in the Netherlands. His security-related research focuses on the politics of military coalitions, the effects of parliamentary involvement on military deployments, and the party politics of security policy. His book Democratic Participation in Armed Conflict: Military Involvement in Kosovo, Afghanistan, and Iraq (Palgrave Macmillan 2014) received the Best Dissertation Award from the German Political Science Association. He is also the author of Qualitative Comparative Analysis: An Introduction to Research Design and Application (Georgetown University Press, 2021) and co-editor of the Routledge Handbook of Foreign Policy Analysis Methods (2023). His articles have appeared in journals such as the European Journal of International SecurityEuropean Journal of International RelationsContemporary Security Policy, and Foreign Policy Analysis.

Contact: Twitter | Website


Dan Reiter

Dr. Dan Reiter is Samuel Candler Dobbs Professor of Political Science at Emory University.  He has studied alliances and coalitions for decades.  His first book, Crucible of Beliefs: Learning, Alliances, and World Wars (Cornell, 1996) explored the relationships between historical experiences and the willingness of states to join alliances.  His other research has examined a number of other aspects of alliances and coalitions, including whether NATO enlargement spreads democracy, whether democracies win their wars because they maintain larger or more effective coalitions (as discussed in Democracies at War (Princeton, 2002, coauthored with Allan C. Stam), command structures across international, rebel, and hybrid coalitions, determinants of variation in the institutional structures of alliances, public support for abiding by alliance commitments, and the deployment of tripwire forces and nuclear weapons to the territory of allies.  He employs a number of methods in his study of alliances and coalitions, including quantitative empirical, historical, survey experimental, and policy analytic.


Olivier Schmitt

Olivier Schmitt is a Professor (with special responsibilities) at the Center for War Studies, University of Southern Denmark. His research interests include multinational military operations, military power, European security, and the transformation of armed forces. He is the author of Allies that Count. Junior Partners in Coalition Warfare (Georgetown UP, 2018), and has written several articles about NATO.

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Robin Thomas

Robin Thomas has a PhD in Archaeology from Southampton University. His research interests focus on military administration in the late eighteenth century. His recent monograph No want of courage: the British Army in Flanders, 1793-1794 (Warwick: Helion, 2022), examines the administrative functioning of an expeditionary force in the late eighteenth century. He is a contributor to the Oxford Dictionary of National Biography and his work has been published in the Journal of the Society for Army Historical Research, the International History Review and in the Proceedings of the Consortium on Revolutionary Europe. He edited the letters of Colonel Daniel George Robinson, Bengal Engineers, for the Army Records Society. He works in the shipping industry.


Mary Elizabeth Walters

Dr. Mary Elizabeth Walters is an Assistant Professor of Military and Security Studies in the Department of Airpower. Walters received both her MA and PhD in military history from the University of North Carolina at Chapel Hill. She is currently working on an oral history project exploring Operation Allies Welcome, the U.S. military support for the evacuation and resettlement of Afghans spanning 2021-2022. Her second book project, Hospitality is the Law of the Mountains: The 1999 Kosovo War, explores how coalition warfare, international humanitarian aid, and local Albanian hospitality intersected during the 1999 Kosovo War and accompanying refugee crisis. This research is based on over a year of fieldwork in Albania and Kosovo, as well as extensive archival research in the U.S. Previous published work includes “‘Tree Hugging Work’: The Shifting Attitudes and Practices of the U.S. Marine Corps Toward Peace Operations in the 1990s” in Marine Corps History and “A Tantalizing Success: The 1999 Kosovo War” in The Strategy Bridge. She teaches Airpower Strategy and Operations, Military Theory, Leadership and the Profession of Arms, and electives on War and Genocide in the Balkans and Combat Motivation.

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Kenton White

Kenton White is a Lecturer in Strategic Studies and International Relations at the University of Reading. He is Co-Director of the Ways of War Centre research hub at the university. Kenton’s areas of interest are military strategy and international relations, Cold War strategy, Napoleonic military and industrial history, British defence policy over the last 200 years. He has a particular interest in military strategy, operations, and tactics particularly during the Peninsular War 1808–1814, and the Cold War 1945-1991. He is the author of The Key to Lisbon which examines the third French invasion of Portugal in 1810-11, and Never Ready which is a study of NATO’s Flexible Response strategy.


Rosella Cappella Zielinski

Rosella Cappella Zielinski is an Associate Professor of Political Science at Boston University and non-resident fellow at the Brute Krulak Center for Innovation and Creativity at Marine Corps University. She specializes in the study of political economy of security with an emphasis on how states mobilize their resources for war and how wartime coalition members organize their economic needs as well as on the battlefield. Her book How States Pay for Wars (Ithaca, NY: Cornell University Press, 2016), is the winner of the 2017 American Political Science Association Robert L. Jervis and Paul W. Schroeder Best Book Award in International History and Politics. Her other works can be found in the Journal of Peace ResearchConflict Management and Peace ScienceSecurity StudiesEuropean Journal of International RelationsJournal of Global Security StudiesJournal of Strategic Studies, as well as Foreign Affairs and War on the Rocks. Her current research projects examine collective action among co-belligerents in wartime including how wartime coalition members coordinate supply and the institutions set up to facilitate coordination as well as the conditions under which wartime coalition members fight together in battle. She was recently a visiting fellow at the Clements Center for National Security at the University of Texas at Austin.

Contact: Twitter