After receiving The Order to Attack from Romanenko, the two tank corps launched their tanks and began to enter the breakthrough at 11 o'clock, but did not arrive at the departure area until 12:30 and 13 o'clock to catch up with the first echelon of infantry.
At noon, Vasilevsky also rushed to the 5th Tank Army to press the position. At 14:00, Romanenko personally took the tank to supervise the battle, leading the 1st and 26th Tank Corps and the 8th Motorcycle Regiment into battle. More than 200 tanks entered the breakthrough and quickly passed the Soviet infantry in front. The left wing is the 26th Tank Army, and the right wing is the 1st Tank Army, forming a tank "steel wall" 20-22 kilometers wide. The 8th Cavalry Corps followed behind the 1st Tank Corps and the 8th Motorcycle Regiment.
Under the impact of the huge tank "steel wall", the 14th Infantry Division of Luo, which had suffered heavy losses before, was quickly defeated, and the remnants either raised their hands and surrendered, or retreated to the south. However, the Luo army then retreated to some well-fortified villages and highlands and launched a stubborn resistance. The Soviet Tank Army then fell into a chaotic and awkward battle. The 19th Tank Brigade of the 26th Tank Army was stopped by the 223rd Heights held by the Luo Army, and made little progress by dusk; the 157th Tank Brigade on the west side, in coordination with the 1st Tank Army, attacked the 86th State Farm Branch and advanced 15 kilometers; the 1st Tank Army advanced 18 kilometers relatively smoothly. At this time, the night fell and heavy snow fell. The Droese reserve also gradually arrived on the battlefield.
As mentioned earlier, Weix mistakenly threw the 48th Panzer Army in the direction of Kretzkaya. But Hitler soon discovered that the Red Army's 5th Tank Army was a greater threat on the side of Serafimović. Zeitzler hastened to inform Weix to correct it. At 11:50 (1:50 p.m. Soviet time), Weix ordered Heim to lead the main forces of the 48th Panzer Army, the German 22nd Panzer Division and the 1st Panzer Division of Roy, to the northwest. The 7th Cavalry Division (reserve of the 2nd Cavalry Division) of The Roy would also counterattack along with it.