Home1995 Treaties and Agreements ...Portugal (95-1121) – Agreement on Cooperation and Defense hide Portugal (95-1121) – Agreement on Cooperation and Defense TIAS Office of Treaty Affairs November 21, 1995 Defense: Cooperation Agreement signed at Lisbon June 1, 1995; entered into force November 21, 1995. With supplemental technical and labor agreements and exchange of notes. Download Agreement [39 MB] Tags Defense Defense Articles Political-Military Cooperation Portugal Treaties Treaties and International Agreements