Vladimir Lenin was the prominent figure behind the establishment of the Soviet Union. After leading the Bolshevik Revolution in 1917, he played a crucial role in the formation of a socialist state following the Russian Civil War. Lenin’s leadership marked the transition from the Russian Empire to a new political system based on Marxist ideology, culminating in the establishment of the Union of Soviet Socialist Republics (USSR) in 1922. Lenin implemented significant reforms, nationalized industries, and promoted communist principles, shaping the USSR’s political landscape for decades and influencing global politics throughout the 20th century.