From June 1921, he again fought in Siberia with the troops of the Far Eastern Republic against the Japanese interventionists, participated in the suppression of the West Siberian uprising: in June – commander of a communications company, then commander of a telegraph platoon of this company and assistant commander of a communications division; from August – Assistant to the Chief of Communications of the 3rd Amur Rifle Division; from September – Chief of Communications of the Special Amur Rifle Regiment; since October – assistant and temporary acting commander of the telegraph company of the headquarters of the Commander–in–Chief of Siberia Vasily Shorin; from November – assistant commander of the 1st Separate Telegraph–Construction Company.