Deputy Director of FRS, the main French think-tank on international security issues, since 2017. His areas of expertise include geopolitics and international relations, strategic and military affairs, nuclear deterrence and non-proliferation, US policy and transatlantic relations, security in the Middle East and in Asia. He was previously a Senior Research Fellow at FRS (2001-16), a Special Assistant to the Director of Strategic Affairs at the Ministry of Defense (1993-2001), and a Director of the Civilian Affairs Committee at the NATO Parliamentary Assembly (1990-93). In 1995-96, he was a Visiting Fellow at the RAND Corporation. He is a member of the Group of Eminent Persons of the Comprehensive Test Ban Treaty Organization Preparatory Commission and of the Group of Eminent Persons for the Substantive Advancement of Nuclear Disarmament. He is also a member of the International Institute for Strategic Studies (IISS), of the editorial board of the Washington Quarterly and the Journal of Security and Strategic Analyses, of the scientific advisory board of Champs de Mars and of the Chaire Economie & Géopolitique of the Paris School of Business. In 2013, he was awarded the ‘Grand Prix de l’impertinence et des bonnes nouvelles’ for an essay entitled Un monde de catastrophes? Mythes et réalités du progrès, and co-recipient of the Brienne Prize for Le Président et la Bombe (2016) and of the Georges Erhard Prize for L’Atlas des frontiers (2017). His latest book is La Revanche de l’Histoire (Editions Odile Jacob, 2017).