Altai Republic
The entire Altan Nuur Uriankhai region was annexed into the Russian Empire in 1864–1867 by the Treaty of Tarbagatai. During the Russian Civil War, the Confederated Republic of Altai (Karakorum-Altai Region) was created in 1918. It claimed to be the first step to rebuilding Genghis Khan's Mongol Empire. But it never became a competing force in the Russian Civil War. It stayed neutral from 1918 until January 1920, when it was taken back by Russia. A second Altai Republic was formed in 1921 and lasted until 1922 when they were annexed by the Bolsheviks.