Russian Civil War

The Russian Civil War (1917-1923) was a multi-sided conflict that took place within the borders of the former Russian Empire following the collapse of the Russian provisional government and the Bolshevik takeover of Petrograd (St. Petersburg).

The main hostilities took place between Bolshevik Red Army, and loosely-allied anti-Bolshevik forces, known as the White Army. The Red Army emerged victorious in 1923. The Communist Party assumed complete control of the country and began building a socialist state.

Note: The Russian Civil War took place as described above in Harry Turtledove timelines with a point of departure after 1917.

Russian Civil War in Southern Victory
The Russian Civil War (1917 - c.1926) was a decade-long internal conflict that was fought between Socialists and Tsarists. It spun off from the Russian Revolution that began during the Great War and left much of the country a wasteland. The Tsarists won when they defeated the last Socialist holdouts in Tsaritsin and confirmed Mikhail II, brother of the late Nicholas II, as Tsar.