Russian Civil War

Category
Wars
Begin
1918
End
1921
Region
Russia
Reference
9 million casualties; [Smithsonian, p. 478]
Excerpts from Books and Wikipedia
Bolsheviks against "White" Russians; "The Russian Civil War (…) was a multi-party war in the former Russian Empire immediately after the two Russian Revolutions of 1917, as many factions vied to determine Russia's political future. The two largest combatant groups were the Red Army, fighting for the Bolshevik form of socialism led by Vladimir Lenin, and the loosely allied forces known as the White Army, which included diverse interests favoring political monarchism, economic capitalism and alternative forms of socialism, each with democratic and antidemocratic variants." [Wikipedia]

This period is linked to the following movies

Movie title
Genre
Released
Doctor Zhivago
Historical
1965
Reds
Historical
1981