The primary outcome of the Bolshevik Revolution for Russia was the establishment of a communist government led by the Bolsheviks under Vladimir Lenin. The revolution, which took place in October 1917, resulted in the overthrow of the Provisional Government and the end of the tsarist regime. It prompted the withdrawal of Russia from World War I and initiated a turbulent period of civil war. The establishment of the Russian Soviet Federative Socialist Republic marked the beginning of a significant ideological shift and a new political order that had a profound impact on global history.