The army fought in the Orel–Kursk operation in October and November, launching the main attack and taking Kromy, Fatezh, Lgov, and Kursk. During the operation, on 14 October, the 13th Army shock group (including the Latvian Rifle Division, the Red Cossack Cavalry Brigade, and P.A. Pavlov's Separate Rifle Brigade), created to launch the main attack, was transferred to the 14th Army after a White attack cut it off from the rest of the 13th Army. The Estonian Rifle Division joined the army in the same month, but was transferred before its end. In November, the 7th and 57th Rifle Divisions and the 8th Cavalry Division were transferred and replaced by the 5th and 45th Rifle Divisions. The shock group was disbanded on 28 November after the Soviet victory.