The 17th Army of the Red Army was a Soviet field army. It was formed from the 1st Army Group of the Transbaikal Military District on 21 July 1940 (Lenskii 2001). From 1941 to 1945, the army assumed a general defensive posture, including within Mongolia. On 22 June 1941 it included the 57th and 61st Tank Divisions, and 36th, 57th and 82nd Rifle Divisions. It ended its existence four months after the end of the war with Japan, in (July–August) 1946(?)).