The Russian Civil War was a multi-year conflict that occurred in Russia after the October Revolution in 1917. It lasted from 1918 to 1922 and involved various factions fighting for control of the country. Below are the details of the civil war and its consequences:

Causes of the Civil War:
- The October Revolution led to the overthrow of the Provisional Government and the rise of the Bolsheviks, who established a socialist government in Russia.
- The Bolsheviks faced opposition from various groups, including the White Army (conservative forces), the Green Army (peasant rebels), and foreign powers who intervened in the conflict.

Course of the Civil War:
- The conflict began in 1918 when the White Army launched a counter-revolution against the Bolshevik government.
- The Red Army, led by Leon Trotsky, fought against the White Army and other opposition groups.
- The war was brutal and involved widespread violence, including massacres of civilians and prisoners of war.
- The Red Army eventually emerged victorious in 1922, and the Bolshevik government consolidated its power over the country.

Consequences of the Civil War:
- The civil war had a devastating impact on Russia, leading to widespread destruction and loss of life.
- The economy was in ruins, and the government had to implement drastic measures to rebuild the country.
- The Bolsheviks established a one-party state and suppressed opposition groups, leading to a period of political repression.
- The civil war also had international consequences, as foreign powers intervened in the conflict and sought to influence the outcome.
- The war set the stage for the development of the Soviet Union, which would become a global superpower in the 20th century.

The Civil War in Russia broke out after the October revolution in Russia. The main causes of the Civil War were the failure of the provisional government of Kerensky, the treaty of Brest-Litovsk enraged Russians, the increasing influence of the Soviets etc. Many groups including the Liberals, Socialists, and those who supported autocracy formed to oppose the Lenin's Bolsheviks. These groups moved to the South of Russia to fight against the Bolsheviks (the reds) to destroy socialism.