Marks of the end: In the late 1980s and early 1990s (about 1989 to 199 1), the drastic changes in Eastern Europe, the disintegration of the Soviet Union and NATO's eastward expansion led to the complete disintegration of the Warsaw Pact camp, and the disintegration of 19 1 Soviet Union, and the complete end of the Cold War. The Soviet Union turned socialism into capitalism, which is now Russia. However, foreign policy remains unchanged.