The Altai Republic (; Altai: , Altay Respublika; , , ), also known as Gorno-Altai Republic, and colloquially, and primarily referred to in Russian to distinguish from the neighbouring Altai Krai as the Gornyi Altai (), is a republic of Russia located in southern Siberia. It is a part of the Siberian Federal District, and covers an area of ; with a population of 210,924 residents. It is the least-populous republic of Russia and least-populous federal subject in the Siberian Federal District. Gorno-Altaysk is the capital and the largest town of the republic. The Altai Republic is one of Russia's ethnic republics, primarily representing the indigenous Altai people, a Turkic ethnic group that form 37% of the Republic's population, while ethnic Russians form a majority at 54%, and with minority populations of Kazakhs, other Central Asian ethnicities, and Germans. The official languages of the Altai Republic are Russian and Altai. Kazakh is official in areas of compact settlement of its speakers. History The Xiongnu Empire (209 BC – AD 93) governed the territory of the modern Altai Republic. The area was part of the First Turkic Khaganate, the Uyghur Empire, and the Yeniseian Kyrgyzs. It was during this time that the local population became fully Turkicized culturally and linguistically. The southern part of the Altai Republic came under the Naiman Khanate. The territory of the modern Altai Republic has been ruled by the Mongolic Xianbei state (93–234), Rouran Khaganate (330–555), Mongol Empire (1206–1368), Golden Horde (1240–1502), Zunghar Khanate (1634–1758) and Qing Empire (1757–1864). The Qing period is a semi-autonomous period with the supervision of two Altan Nuur Uriankhai Governor Banners and part of the seven Altai Uriankhai banners. During the Qing administration, the General of Siberia Fedor Ivanovich Soimonov launched a non-military expedition into the Altan Nuur region in 1760 and began fort building. This was subsequently removed by Heseri Jalafungga of the Qing. Since the 1820s, the routine border check was less frequent and the Chuy drainage basin has been occupied by Russians. 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 established in 1918, and declared as the first step to rebuilding Genghis Khan's Mongol Empire. But it never became a competing force in the Russian Civil War, and stayed neutral from 1918 until January