In middle of February 1943, 320 Infantry division battered in battles is out from the encirclement in the area of Zmiyev in direction to Kharkov. Motorized battle group from SS division, sent to cross river Uday and break through the encirclement and deliver the fuel and ammunition, and assist in breaking out of encirclement. On other side, 350 Rifle Division of Red Army is occupy positions in the Krasnaya Polyana village near the bridge over the river Uday. 6th gds. Cavalry Corps is blocked road from Zmiyev to Kharkov.