SVEN BISCOP Senior Research Fellow, Royal Institute for International Relations (IRRI-KIIB), BelgiumNICOLA CATELLANI Research Fellow, Bologna University, Italy SPYROS ECONOMIDES Senior Lecturer, European Institute, London School of Economics and Political Science, UKBASTIAN GIEGERICH Research Associate, International Institute for Strategic Studies (IISS), UKEVA GROSS Visiting Fellow, Centre d'Études et de Recherches Internationales (CERI), FranceJAMES HUGHES Reader in Comparative Politics, London School of Economics and Political Science, UKPAUL LUIF Lecturer, University of Vienna, AustriaMARIYANA RADEVA Interning at a public affairs consultancy, Brussels, BelgiumGWENDOLYN SASSE Senior Lecturer in Comparative European Politics, European Institute and the Department of Government, London School of Economics and Political Science, UKMAY-BRITT STUMBAUM Resident Fellow at the German Council on Foreign Relations, GermanyNATHALIE TOCCI Marie Curie Fellow, Robert Schuman Centre for Advanced Studies, European University Institute, ItalyJORDI VAQUER I FANES Head of the International Relations Office, Secretariat for International Relations of the Government of Catalonia, SpainPASCAL 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