Interview with Francis Gutmann, Policy Officer in the Directorate of Economic and Financial Affairs (Economic Cooperation) at the French Foreign Ministry from 1955 to 1957, member of the French delegation to the Brussels Conference on the Common Market from 1956 to 1957, Secretary-General of the French Ministry of External Relations from 1981 to 1985 and French Ambassador to Madrid from 1985 to 1988, Chairman of Gaz de France from 1988 to 1993 and Chairman of the French Institute of Petroleum from 1993 to 1995, carried out by the Centre Virtuel de la Connaissance sur l’Europe (CVCE) on 10 September 2014 at Francis Gutmann’s home in Paris. The interview was conducted by Verónica Martins, a Researcher at the CVCE, and particularly focuses on the following subjects: the establishment of Western European Union (WEU) and its relationship with NATO, the nuclear question and the Euromissiles crisis, NATO’s ‘out-of-area’ operations, energy supply in the European Union, the question of armaments in WEU and WEU’s achievements.