The polycrisis and EU security and defence competences  ​tandf: Journal of European Public Policy: Table of Contents Catherine Hoeffler Stéphanie C. Hofmann Frédéric Mérand a Global Studies Institute, Université de Genève, Suisse, Genevab European University Institute, Florence, Italyc Département de science politique, Université de Montréal, Montreal, CanadaCatherine Hoeffler is an Associate Professor of European Studies at the Global Studies Institute, Université de Genève.Stephanie C. Hofmann is a Professor of Political Science at the European University Institute, Florence.Frédéric Mérand is a Professor of Political Science at Université de Montréal.