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Alexander Kolchak was executed in Irkutsk, Russia. He was a Russian military officer and admiral who led the White movement against the Bolsheviks during the Russian Civil War. After the Bolsheviks defeated the Whites, Kolchak was captured and executed in Irkutsk on February 7, 1920. His execution was a major blow to the White movement and helped to ensure the Bolshevik victory in the Russian Civil War.