Inadequate numbers of Romanian troops were charged with securing a lengthy front during the decisive fight for Stalingrad. The Red Army took advantage of the thinly spread Romanians when its major offensive against Axis forces was launched.
The Russian infantry was now moving steadily forward, leaving the armored and mechanized units to continue to work on closing the jaws of the trap. Rodin’s 26th Tank Corps took Perelazonvsky, about 80 miles northwest of Stalingrad. Butkov’s 1st Tank Corps snapped at the heels of Heim’s XLVIII Panzer Corps, which was starting to retreat to the southwest, while the 8th Guards Cavalry Corps continued its drive to the Chir River. Despite several difficulties, the 20th had been an excellent day for Uranus.
On Saturday, November 21, the 21st Army spearhead continued moving southeast, closing on Golubinski. Paulus, finally realizing the disaster overtaking him, asked Berlin for permission to pull his army out of Stalingrad and for a new defensive line on the Don. He then relocated his headquarters to Nizhnye Chriskaya, a village about 40 miles to the southwest.
Later that day, Paulus received two messages from Hitler. The first one read: “The commander-in-chief will proceed with his staff to Stalingrad. The 6th Army will form an all-round defensive position and await further orders.”
Later in the day, Hitler sent Paulus the following message: “Those units of the 6th Army that remain between the Don and the Volga will henceforth be designated Fortress Stalingrad.”
The two messages not only sealed the fate of the 6th Army, but they also meant that Zhukov would not have to worry about any kind of breakout attempt by the Stalingrad forces. In effect, it gave him the opportunity to start solidifying his inner ring around the city while concentrating on closing the outer ring.
Between the inner and outer rings, Germans and Romanians were still fighting. Heim’s XLVIII Panzer Corps, trying to make its way to the Chir River crossings, actively engaged Soviet forces in several pitched battles as they made their bid for freedom. General Mikhail Lascar had gathered remnants of the V Romanian Army Corps farther north and was resisting repeated Russian attempts to overrun his hastily constructed defenses. Hoping for German support, Lascar would wait in vain for any relief effort.
While these clashes were taking place in the north, Eremenko’s southern offensive was running into problems, despite having effectively split Hoth’s 4th Panzer Army in half. Most of Hoth’s German units were trapped inside the ever tightening ring around Stalingrad. The 4th Romanian Army, which had been subordinated to Hoth’s Panzer Army, was in disarray, and the 16th Panzergrenadier Division, the only German unit outside the Stalingrad sector, was making a fighting withdrawal through heavy opposition.
It was a golden opportunity for the Russians, but command failure was still a problem that plagued even the highest ranks of the Red Army. Tolbukhin’s 57th Army and Shumilov’s 64th Army were making good progress closing the inner ring around Stalingrad. Trufanov’s 51st Army was a different matter.
Once the breakthrough was achieved, Trufanov was supposed to send his 4th Mechanized Corps and 4th Cavalry Corps speeding northwest to Kalach while the bulk of his infantry was to head southwest as a shield for his left flank. The coordination and complexity of controlling both armored and infantry forces moving in different directions proved too much for Trufanov and his staff.
Instead of the quick thrust toward Kalach, the mechanized and cavalry forces moved sluggishly to the northeast, giving many of the retreating Romanians a chance to flee for their lives. The flanking infantry advanced even more slowly, amazing even Hoth as he followed their progress. Although his remaining forces could have been destroyed by a more aggressive Soviet posture, all he faced on the battlefield before him was “a fantastic picture of fleeing (Romanian) remnants.”
Sunday, November 23, found the Russians in the north advancing on the Don in force. In the predawn hours, an assault unit captured a newly constructed bridge across the river at Berezovski near the primary objective of Kalach. It was the first Soviet victory of the day, but it would not be the last.
By now, communications between the 6th Army headquarters and outlying units had almost completely broken down. At Kalach itself, word of the Soviet breakthrough only reached the garrison on the morning of the 21st. The troops occupying the town, which was located on the eastern bank of the Don, consisted mostly of maintenance and supply personnel and included the workshops and transport company of the 16th Panzer Division. They were augmented by a Luftwaffe flak battery and a small force of field police.
There had been no other word about the breakthrough since a message concerning the breakthrough in the south was received on the afternoon of the 21st. Tasked with defending both Kalach and the western bank, the garrison faced an impossible situation. The town commander had no idea that three Soviet corps were heading directly for him, and even if the Germans had known, the garrison had no way to stop them.
With the Berezovski Bridge in Russian hands, Maj. Gen. Rodin sent Lt. Col. G. N. Filippov and his 19th Tank Brigade speeding along the Don to Kalach. Using captured German vehicles to lead the way, Filippov’s men overwhelmed the detachment guarding the Don Bridge. On the western heights, Luftwaffe 88mm field guns opened fire and destroyed several Russian T-34 tanks.
Filippov, not waiting for his mechanized infantry, ordered a detachment of tanks to cross the river and form a bridgehead on the eastern banks while other T-34s continued to duel with the 88s. When the infantry did appear, he once again split his forces, sending some infantry across the river and ordering the rest to support the tanks trying to take the heights. A combined assault finally silenced the German guns, and the heights were taken by midmorning.
From their new vantage point, the Russian tanks on the western bank poured round after round into Kalach, while their comrades on the eastern bank stormed the town’s flimsy defenses. Those Germans that could escape loaded themselves on anything drivable and fled toward Stalingrad. By early afternoon, Kalach was in Russian hands.
In the south, Trufanov was finally getting his forces under control. Although his infantry was still slowly plodding westward and southwestward, his mechanized units were advancing at a faster pace. By the end of the day, Volsky’s 4th Mechanized Corps had taken Buzinovka and was moving toward Sovietski, a few miles east of Kalach near the junction of the Don and Karpovka Rivers.
In essence, by the end of the day any German or Romanian units east of the mechanized ring had only one place to go-Stalingrad. General Lascar, surrounded and running low on ammunition, refused several Russian requests to surrender. His force was overwhelmed, its survivors forming long gray columns marching east toward a very uncertain future.
By now, there was little to stop the northern and southern spearheads from completing their missions. Volsky reached the south bank of the Karpovka a little after noon on November 23. The 45th Tank Brigade of Kravchenko’s 4th Tank Corps arrived on the opposite bank around 4 PM. Zhukov’s trap was finally closed, with about 300,000 of the enemy in the giant cage called Stalingrad.
The meeting of the northern and southern pincers was later restaged for Soviet propaganda films, but there is little doubt that the emotions shown on the screen were the same felt by Volsky’s and Kravchenko’s troops as they first joined. Although Heeresgruppe A was able to make a masterful withdrawal from the Caucasus in the months to follow, the Red Army had bottled up the 6th Army and a good deal of the 4th Panzer Army. It was a great victory.
Operation Uranus was only the first step in the annihilation of Fortress Stalingrad, but it was a giant one. Despite control problems, Zhukov and his commanders in the field had shown that they had learned the lessons vital to modern mechanized warfare. Methods developed during Uranus were finely honed and used again by Zhukov and others in later operations that would shake the foundation of the German military and finally bring it crashing down.