The Allied intervention was a multi-national military expedition launched during the Russian Civil War in 1918. Its operations included forces from 14 nations and were conducted over a vast territory. The initial stated goals were to help the Czechoslovak Legions, secure supplies of munitions and armaments in Russian ports, and re-establish the Eastern front. After winning the war in Europe, the Allied powers militarily backed the pro-Tsarist, anti-Bolshevik White forces in Russia. Allied efforts were hampered by divided objectives, lack of an overarching strategy, war weariness and a lack of public support. These factors, together with the evacuation of the Czechoslovak Legion and the deteriorating situation compelled the Allies to withdraw from North Russia and Siberia in 1920, though Ja