Together with French President Valéry Giscard d’Estaing, he pushed for the establishment of the Group of Seven to coordinate international economic policies, and played a leadership role at the G-7’s first summit, in Rambouillet in 1975. That same year he sat next to East Germany’s leader Erich Honecker in Helsinki while signing the “Final Act” of the Conference on Security and Cooperation in Europe – a major breakthrough for détente policy and in opening the closed societies of the USSR and Warsaw Pact.
1975在朗布依埃举办的首届七国峰会上，他和法国总统德斯坦一道推动建立七国集团协调国际经济政策并在会上发挥了领导作用。同年他在赫尔辛基与东德领导人埃里希·昂纳克坐在一起，签署了欧洲安全与合作会议的“终极文件”——这是缓和政策的重大突破，开启了苏联和华约组织内部的封闭社会。