ASEAN achieved greater cohesion in the mid-1970s following the changed balance of power in Southeast Asia after the end of the Vietnam War. The region’s dynamic economic growth during the 1970s strengthened the organisation, enabling ASEAN to adopt a unified response to Vietnam’s invasion of Cambodia in 1979. ASEAN's first summit meeting, held in Bali, Indonesia, in 1976, resulted in an agreement on several industrial projects and the signing of a Treaty of Amity and Cooperation, and a Declaration of Concord. The end of the Cold War between the United States and the Soviet Union at the end of the 1980s allowed ASEAN countries to exercise greater political independence in the region, and in the 1990s ASEAN emerged as a leading voice on regional trade and security issues.