The Siberian intervention or Siberian expedition of 1918–1922 was
the dispatch of troops of the Entente powers to the Russian Maritime
Provinces as part of a larger effort by the western powers, Japan, and China
to support White Russian forces and the Czechoslovak Legion against
Soviet Russia and its allies during the Russian Civil War.
The Imperial Japanese Army continued to occupy Siberia even
after other Allied forces withdrew in 1920.
