Interview with André Flahaut, an activist in the Belgian Socialist Party since 1973, Director of the Institut Émile Vandervelde from 1979 to 1995, Belgian Minister for National Defence from 1999 to 2007, President of the Chamber of Representatives from 2010 to 2014 and Minister for the Budget, the Civil Service and Administrative Simplification in the Government of the French Community since 2014, carried out by the Centre Virtuel de la Connaissance sur l’Europe (CVCE) on 18 August 2010 at the Chamber of Representatives in Brussels. The interview was conducted by Étienne Deschamps, a Researcher at the CVCE, and particularly focuses on the following subjects: the origins of Flahaut’s European commitment, Belgium and European defence policy, and the establishment of a Europe of defence.