Before the German Operation Barbarossa began it covered the Soviet frontier to the north of Lake Ladoga.
On 25 September 1941 it was renamed the 7th Separate Army, directly subordinate to Stavka, (VGK – the Supreme High Command), and it remained in that status until February 1944.
In the middle of October 1941 – June 1944 it defended the Svir River line between Lakes Onega and Ladoga.
From June to August 1944 the army, comprising now the 37th Guards, 4th, 94th, and 99th Rifle Corps, 150th and 162nd Fortified Regions, and a number of artillery, tank, engineering and other units, as part of the Karelian Front, participated in the Svir–Petrozavodsk Operation.
On the basis of its headquarters the 9th Guards Army of the Airborne Forces was created on 18 December 1944.