Army Group F
In August 1944, Army Group F Commander Feldmarschall Maximilian von Weichs ordered the concentration of his mobile forces in Serbia to combat the Partisans. This included: the 4th SS Police Division, the 1st Mountain Division, the 92nd Motorized Regiment, the 4th Brandenburg Regiment, the 191st Assault Brigade, and the 486th Armored Reconnaissance Troop. As a counter-measure to the events in Romania and Bulgaria, he ordered the 11th Luftwaffe Field Division, the 22nd Infantry, the 117th, the 104th Jäger Division, and the 18th SS Mountain Police Regiment to advance to Macedonia.