It was lead by the Bolshevik party was essentially a revolution against the Pre-WWI Tsarist Regime. Lenin's Bolshevik's spread the idea of communism and equality among all it's citizens which incited the lower class against the upper class and Monarchy.
The results of the Russian Civil war was the establishment of the USSR. Finland, Estonia, Poland, Lithuania, and Latvia were established as sovereign states of the Soviet Union, with the Communist Party in power.