During the defence of Stalingrad, the Red Army used six armies (8th, 28th, 51st, 57th, 62nd and 64th Armies) in and around the city. An additional nine armies in the final attack on the Germans. The nine armies used for the final attack were the 24th Army, 65th Army, 66th Army and 16th Air Army from the north as part of the Don Front offensive and 1st Guards Army, 5th Tank, 21st Army, 2nd Air Army and 17th Air Army from the south as part of the Soviet Southwestern Front.