Isabelle Duyvesteyn is Professor of International Studies/Global History at the Institute of History at Leiden University. Between 2012 and 2017 she held the Special Chair in Strategic Studies at the Political Science Institute of Leiden University. Between 2008 and 2020 she was a member of the national Advisory Council on International Affairs assigned to advise the Netherlands government on issues of peace and security, and between 2012 and 2021 she was a member of the Scientific Advisory Board of the Netherlands Defence Academy. Beatrice Heuser holds the Chair of International Relations at the University of Glasgow, and is seconded to the General Staff College of the Bundeswehr in Hamburg as Section Chief for Strategy. She has worked at NATO Headquarters as a consultant. She has served on academic advisory boards of the Royal United Services Institute, the French Institute of International Affairs (IFRI) and the French government's strategic studies think tank IRSEM. She has previously taught at universities in the UK, Germany and France.