SVEN BISCOP Senior Research Fellow, Royal Institute for International Relations (IRRI-KIIB), Belgium NICOLA CATELLANI Research Fellow, Bologna University, Italy SPYROS ECONOMIDES Senior Lecturer, European Institute, London School of Economics and Political Science, UK BASTIAN GIEGERICH Research Associate, International Institute for Strategic Studies (IISS), UK EVA GROSS Visiting Fellow, Centre d'Études et de Recherches Internationales (CERI), France JAMES HUGHES Reader in Comparative Politics, London School of Economics and Political Science, UK PAUL LUIF Lecturer, University of Vienna, Austria MARIYANA RADEVA Interning at a public affairs consultancy, Brussels, Belgium GWENDOLYN SASSE Senior Lecturer in Comparative European Politics, European Institute and the Department of Government, London School of Economics and Political Science, UK MAY-BRITT STUMBAUM Resident Fellow at the German Council on Foreign Relations, Germany NATHALIE TOCCI Marie Curie Fellow, Robert Schuman Centre for Advanced Studies, European University Institute, Italy JORDI VAQUER I FANES Head of the International Relations Office, Secretariat for International Relations of the Government of Catalonia, Spain PASCAL VENNESSON Professor of Political Science, Robert Schuman Centre for Advanced Studies, European University Institute, Italy WILLIAM WALLACE Professor Emeritus of International Relations, London School of Economics and Political Science, UK