note- also known as CMEA or Comecon established 25 January 1949 to promote the development of socialist economies and abolished 1 January 1991; members included Afghanistan (observer), Albania (had not participated since 1961 break with USSR), Angola (observer), Bulgaria, Cuba, Czechoslovakia, Ethiopia (observer), GDR, Hungary, Laos (observer), Mongolia, Mozambique (observer), Nicaragua (observer), Poland, Romania, USSR, Vietnam, Yemen (observer), Yugoslavia (associate)