North Atlantic Council meeting at the Ministerial Level at the new Headquarters at Porte Dauphine Paris, France 15 December 1959 Please credit NATO photos. Opening of the new NATO Headquarters at Porte Dauphine. (NATO Photo 701kb Ref. no: 2188/1) First Ministerial Meeting at the new Headquarters at Porte Dauphine. (NATO Photo 371kb Ref. no: 1698/7) NATO Headquarters at Porte Dauphine. (NATO Photo 674kb Ref. no: 1530)