The 1st Army was created from the Primorsky Group of Forces, and was responsible for the Ussuri area with its headquarters at Voroshilov (now Ussuriysk).

It was directly subordinated to the People's Commissariat of Defense and operationally controlled the Pacific Fleet.

[4] By an order of the People's Commissariat of Defense dated 21 June 1940, the Far Eastern Front was reformed.

[5] In June, the 79th Fighter Aviation Division began forming as part of the army's Air Force.

[6] The official Soviet archives list the composition of the Army on 22 June 1941:[7] 6 rifle divisions, 3 tank brigades (75th, 77th, 257th), 3 SP regiments, 6 SP battalions, 1 heavy tank/SP gun regiment, 5 artillery brigades.

Until the war's end in 1945, the 1st Red Banner Army covered some of the long far eastern borders of the Soviet Union.

The Army's forces at the beginning of the offensive included 26th and 59th Rifle Corps, 6 rifle divisions, 3 tank brigades (75th, 77th, 257th), 3 SP regiments, 6 SP battalions, 1 heavy tank/SP gun regiment, 5 artillery brigades, and 410 tanks/SP guns and 1,413 guns/mortars.