Answer
The Russian Civil War was an armed conflict that took place in Russia from 1917 to 1922, following the overthrow of the Russian Empire during the February Revolution and the establishment of the Russian Soviet Republic. It was fought between the Red Army, the armed forces of the Bolshevik government, and various anti-Bolshevik forces. The war ended with the victory of the Bolsheviks, and the establishment of the Soviet Union.