Bolshevist Russia , an informal term referring to the Bolshevik side in the Russian Civil War, or the Soviet Russian government before the establishment of the Soviet Union.
Russian SFSR (Russian Soviet Federated Socialist Republic), the Soviet Russian state officially founded in 1918, some months after the October Revolution of 1917. The RSFSR's boundaries were fluid until the end of the Civil War, when it became a founding republic of the Soviet Union.