The idea of a NATO Defense College originated with General Dwight D. Eisenhower, the first Supreme Allied Commander Europe, who identified very early on the need for a new international institution with a unique education mission. On 19 November 1951, the NATO Defense College opened its doors to Course 1 in Paris. In 1966, France withdrew from the Alliance's integrated military structure and the College moved to the EUR quartier of Rome, where it continues to fulfil its mission. On 10 September 1999, the new College building, twice the size of the old one, was inaugurated in Cecchignola Città Militare, a military zone 2 km from the former site. On 13–14 October 2016, the NATO Defense College celebrated the 50th anniversary of its move to Rome and the 65th anniversary of its foundation.