Holger Afflerbach specializes in 19th- and 20th- Century German history; international relations; military history, particularly World War I and World War II, as well as Austrian and Italian history and has written widely on these topics. He is Professor of Central European History at the University of Leeds.
David Stevenson is Stevenson Professor of International History at the London School of Economics and Political Science. He specializes in the history of international relations in Europe since c.1900, with particular reference to the World War I. His recent publications include Armaments and the Coming of War: Europe, 1904-1914 (Oxford, 1996), Cataclysm: The First World War as Political Tragedy (New York, 2004) amd With Our Backs to the Wall: Victory and Defeat in 1918 (Allen Lane, 2011)