Erik Jones is Professor of European Studies and Director of European and Eurasian Studies at the Paul H. Nitze School of Advanced International Studies (SAIS), Johns Hopkins University; Senior Research Associate at the Istituto per gli Studi di Politica Internazionale in Milan; and a contributing editor to Survival. Henrik Breitenbauch heads the Centre for Military Studies in the Department of Political Science at the University of Copenhagen. Niels Byrjalsen is a PhD fellow in the Department of Political Science at the University of Copenhagen.