“Alliances”, in Alexandra Gheciu and William C. Wohlforth (eds.), The Oxford Handbook of International Security, Oxford: Oxford University Press, 2018 (with Sten Rynning), pp. 653-667 (link)
“Defence as War”, in David J. Galbreath and John R. Deni (eds.), Routledge Handbook of Defence Studies, Abingdon: Routledge, 2018, pp. 18-29. (link).
“The Causes, Character and Conduct of Armed Conflict, and the Effects on Civilian Populations, 1990-2010”, in Volker Türk, Alice Edwards and Cornelis Wouters (eds.), In Flight from Conflict and Violence. Refugee Status and Other Forms of International Protections, Cambridge: Cambridge University Press, 2017, pp. 25-58 (with Theo Farrell) (link)
“International Sanctions”, in Thierry Balzacq and Myriam Dunn Calvety (eds.), Routledge Handbook of Security Studies (2nd ed.), Abingdon: Routledge, 2016, pp. 360-370 (link).
“Of Politics and Policies. Thinking Strategically about the EU”, in Lorenzo Cladi and Andrea Locatelli (eds.), International Relations Theory and European Security. We Thought we Knew, Abingdon: Routledge, 2015, pp. 121-137 (link).
“French Strategic Culture”, in Bastian Giegerich, Heiko Biehl and Alexandra Jonas (eds.): Strategic Cultures in Europe, Munich: VS Verlag, 2013, pp. 125-138, (with Bastien Irondelle). (link)