As tensions between Cuba and the United States increased following the Bay of Pigs Invasion and Cuba Missile Crisis, Cuba increasingly turned to the Soviet Union for economic and military aid. From 1970-1980, the Soviet Union was fully immersed in Cuba's economic affairs. In 1972, Cuba joined the Council for Mutual Economic Assistance, COMECON, and by the end of the 1980s, 85% of Cuba's trade was done with the member of COMECON.