Political map of Russia & the former Soviet Union 03 January 1920 (End of Kolchak): By January 1920, Kolchak's (Aleksandr Kolchak) Siberian White forces (White movement) were disintegrating. Revolts cut off their retreat and Kolchak resigned on January 4. The Czechoslovak troops (Czechoslovak Legions) in control of the railway arrested him, handing him over to the new 'Political Centre' (Political Centre (Russia)) in Irkutsk in return for passage out of Russia. He was shot on February 7.