Eastern Front of the Russian Civil War

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Eastern Front
Part of the Russian Civil War
Kolchak inspecting White Russian troops
Date May 14, 1918 – June 16, 1923 Location Volga, Ural, Siberia, Far East, Mongolia Result Bolshevik victory Collapse of White and anti-Soviet Resistance
Belligerents
Bolsheviks:  Russian SFSR Far Eastern Republic Mongolian People's Party Left SRs (Until March 1918)	White movement: Russian State Priamur Government (1921–1922) Allied Powers:  Japan Kingdom of Italy  United States  United Kingdom  France Czechoslovakia China Mongolia (1921) Green Ukraine Buryat-Mongolia Mongolia
Commanders and leaders
Leon Trotsky Jukums Vācietis Sergey Kamenev Mikhail Muravyov † Mikhail Tukhachevsky Mikhail Frunze Aleksandr Samoylo Pavel Lebedev Vasily Blyukher Ivan Smirnov Sergey Lazo  A. Krasnoshchyokov Damdin Sükhbaatar Khorloogiin Choibalsan	Alexander Kolchak  Grigory Semyonov Mikhail Diterikhs Vladimir Kappel † R. Ungern-Sternberg  Anatoly Pepelyayev Radola Gajda Stanislav Čeček Jan Syrový Kikuzo Otani Yui Mitsue William S. Graves Alfred Knox Maurice Janin Yuri Hlushko-Mova Bogd Khan
Strength
Total: 600,000 Red Army: 5 Field Armies	Total: 740,000 White Army: 420,000 Siberian Army: 80,000 Czechoslovak Legion: 42,000 People's Army of Komuch: 10,000 Irregulars and Bandits: 50,000 Allied Expeditionary Force: 140,000 Green Ukraine: 5,000
Casualties and losses
150,000–300,000	250,000–400,000

The Russian Civil War spread to the east in May 1918, with a series of revolts along the route of the Trans-Siberian Railway, on the part of the Czechoslovak Legion and officers of the Russian Army. Provisional anti-Bolshevik local governments were formed in many parts of Siberia and the Russian Far East during that summer in the wake of the Czechoslovak Legion uprising, including in Samara, Omsk, Yekaterinburg, and Vladivostok.

The Red Army mounted a counter-offensive in the autumn of 1918. Throughout the winter and spring of 1918/1919, the White Army had dominance over this front. In the summer of 1919, and from then onward, the Red Army defeated the White commander Aleksandr Kolchak. The White Army collapsed in the East as well as on other fronts throughout the winter of 1919/1920. Smaller-scale conflicts in the region went on until as late as 1923.