The Great War Era (1914 - 1918)
First world war and civil war in Russia
A global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Described as "the war to end all wars," it led to the mobilisation of more than 70 million military personnel, including 60 million Europeans, making it one of the largest wars in history. It is also one of the deadliest conflicts in history, with an estimated nine million combatants and seven million civilian deaths as a direct result of the war, while resulting genocides and the resulting 1918 influenza pandemic caused another 50 to 100 million deaths worldwide.
A multi-party civil 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 favouring political monarchism, economic capitalism and alternative forms of socialism, each with democratic and anti-democratic variants. In addition, rival militant socialists and non-ideological Green armies fought against both the Bolsheviks and the Whites. Eight foreign nations intervened against the Red Army, notably the former Allied military forces from the World War and the pro-German armies.