Association of Southeast Asian Nations

The Association of Southeast Asian Nations (ASEAN /ˈɑːsi.ɑːn/ AH-see-ahn,/ˈɑːzi.ɑːn/ AH-zee-ahn) is a political and economic organization of ten Southeast Asian countries. It was formed on 8 August 1967 by Indonesia, Malaysia, the Philippines, Singapore, and Thailand. Since then, membership has expanded to include Brunei, Cambodia, Laos, Myanmar (Burma), and Vietnam. Its aims include accelerating economic growth, social progress, and sociocultural evolution among its members alongside protection of regional stability and opportunities for member countries to resolve differences peacefully.

ASEAN covers a land area of 4.4 million square kilometers, 3% of the total land area of the Earth. ASEAN territorial waters cover an area about three times larger than its land counterpart. The member countries have a combined population of approximately 625 million people, 8.8% of the world's population. In 2015, the organisation's combined nominal GDP had grown to more than US$2.6 trillion. If ASEAN were a single entity, it would rank as the seventh largest economy in the world, behind the US, China, Japan, Germany, France and the United Kingdom.