The Siberian Intervention of 1917-23 was Japan’s cooperative contribution to the Allied intervention in Russian affairs following the Russian Revolution of 1917. The Allies sought to protect weapons sent to Russia to help fight Germany and Austria-Hungary and, secondly, to meddle in the course of the revolution. Although the Allies pulled out shortly, the Japanese remained in Siberia with some elements harboring thoughts of detaching Siberia from Russia. After much political arguing, fairly heavy losses and no particular gains, the Japanese military was convinced to withdraw.
