Annette F. Timm is Associate Professor in the Department of History at the University of Calgary, Canada. She is the author of The Politics of Fertility in Twentieth-Century Berlin (2010), one of the co-editors of Not Straight from Germany: Sexual Publics and Sexual Citizenship since Magnus Hirschfeld (2017) and the editor of Holocaust History and the Readings of Ka-Tzetnik (Bloomsbury, 2018).Joshua A. Sanborn is David M. '70 and Linda Roth Professor of History at Lafayette College, USA. He is the author of Imperial Apocalypse: The Great War and the Destruction of the Russian Empire (2014) and Drafting the Russian Nation: Military Conscription, Total War, and Mass Politics, 1905-1925 (2003).