Soviet Union

The Soviet Union (USSR) was a socialist state that existed from 1922 to 1991, covering much of Eastern Europe and Northern Asia. It was formed after the Russian Revolution in 1917, when the communist Bolsheviks led by Vladimir Lenin overthrew the existing government. The USSR was a one-party state and a major world power, known for its central planning economy and significant military capabilities. It was involved in the Cold War against the United States, leading to global tensions. The USSR dissolved in 1991, resulting in the independence of 15 republics, including Russia, Ukraine, and the Baltic states.