On the morning of November 19, the attack began. All across the Southwest Front Soviet artillery blasted huge holes in the Romanian lines which were quickly driven through by Russian armor and horse cavalry. The Soviet operational technique was simple: massive artillery bombardment shocked and suppressed the defending Romanian infantry; Soviet armor rolled over the still shocked Romanians who were woefully short of antitank guns and had no armor reserve. Soviet horse cavalry followed closely behind the armor to protect its flanks. Finally, Soviet infantry moved forward and mopped up the remaining isolated Romanian positions. The Soviet assault tactics were extremely effective against the poorly equipped and led Romanians, and Soviet armor formations quickly penetrated and fanned out into the Romanian and German rear areas. The objective of the Southwest Front was the west bank of the Don River and the Sixth Army logistics base at Kalach on the east bank of the Don River. Kalach and the vital bridge over the Don located there were captured on November 22, a mere three days after the attack began.
On November 20 the Stalingrad Front launched its attack on the Romanian Fourth Army. The pattern to the northwest was repeated south of Stalingrad. The Romanian forces were quickly overrun by Soviet armor formations which proceeded to advance rapidly against light opposition to the west and northwest. On November 23, four days after the beginning of the offensive, armored forces from the Don Front linked up with forces from the Stalingrad Front just east of Kalach and effected the complete isolation of the Sixth Army and attached troops around Stalingrad.
The battle for Stalingrad was decided on November 23 when the Red Army managed to isolate the German Sixth Army in and around the city. In three months of combat prior to the end of November, the German forces had been unable to isolate the Soviet Sixty-Second Army in the city and therefore the battle had raged on. The Germans had never contemplated isolating Stalingrad by attacking across the Volga River. In contrast, in four days the Soviets surrounded the city and sealed the fate of the Sixth Army. Approximately 250,000 Axis troops were trapped in the kessel. Over the next two and a half months the Soviets gradually pressed against the perimeter of Sixth Army while the rest of the German army watched on helplessly. Finally, the bulk of the German troops surrendered on January 31, 1943. The remaining holdouts, after enduring a withering Soviet artillery barrage, surrendered on February 2. In all the Russians took in almost 100,000 prisoners as the five-month battle for the city ended. In total, the losses at Stalingrad were immense. In the battle and campaign, which included the Soviet counterattack, the Germans lost 400,000 men, and the Soviets lost 750,000 killed, wounded, and missing. Allies of the Germans — the Italians, Hungarians, and Romanians — lost another 130,000, 120,000, and 200,000 respectively. Thus total casualties on both sides exceeded one million men. Of the 600,000 civilians who lived and worked in Stalingrad and its suburbs, no one knows how many died, although 40,000 were reported killed in the initial air attacks against the city. Hundreds of thousands of civilians became casualties over the course of the five-month battle, and those remaining became refugees. Only 1,500 civilians remained in the city at the end of the battle. In terms of raw casualty numbers, the battle for Stalingrad was the single most brutal battle in history.
The German Tactical Approach
Though the German army had acquired experience of urban fighting during the fall of 1941, the individual divisions in Stalingrad had to develop their own version of city fighting for the unique Stalingrad situation. Stalingrad was different from other cities for several reasons. One was the massive amount of destruction that had been inflicted upon the city, destruction which continued and increased over time. The second was the nature of the buildings in Stalingrad. They were massive concrete affairs which, when surrounded by rubble following artillery and air bombardment, were virtual fortresses. The Germans found that the most effective tactic was to combine infantry and armor into teams. These teams were supported by artillery and closely supported by the Luftwaffe. Stalingrad was the last great performance by the fabled German Stuka dive-bombers.
Typically, German attacks followed a pattern: Luftwaffe air bombardment, followed by a short artillery barrage, and then the advance of German infantry followed closely by panzers in support. This pattern generally ensured success. Panzers, though not optimized for city warfare, were absolutely critical to it, and the three panzer divisions that fought at Stalingrad were a key part of most of the Sixth Army’s tactical successes. The problem the Germans had tactically was that they simply did not have enough panzers, infantry, and artillery to execute the tactics they employed with sufficient vigor to overcome the Russian defenders quickly. In the course of the German attacks in Stalingrad, virtually all the attacks were successful. However, they were never as fast as the Germans wanted or expected them to be, and were always more costly than the Germans could afford. The German army could be, and was, successful in urban combat in Stalingrad, but at an unacceptable price in time and casualties.
In the rubble of Stalingrad, the disparity between German and Soviet tactical capabilities, which was very prominent in the open battles of maneuver on the Russian steppe, was reduced significantly. The German army excelled at operational warfare: the close coordination of all arms at the division and corps level of command to achieve rapid and decisive effects across great distances. In urban combat, the important distances were blocks — divisions and corps could not maneuver, and command and coordination at the highest levels was relatively simple and not very important. Thus, the strengths of the German military machine were fairly irrelevant to the battle. Instead, the battle devolved to tactical competence at the battalion level and below, combat leadership, and the psychological strength of the individual soldier. The Wehrmacht had these characteristics in great abundance. However, so did the Soviet army. Thus, unlike in operational maneuver warfare, in urban combat the two sides were both fairly competent, and thus very evenly matched. These organizational circumstances were a recipe for a long and bloody battle. The Red Army, and in particular the Sixty-Second Army, augmented the natural strength of the Russian infantry in close combat and the urban terrain with several innovative tactics which made them more formidable in urban combat than the Germans expected.
Soviet Shock Groups
One of the most effective and feared German weapons at Stalingrad was the venerable Stuka dive-bomber. Weather permitting, all major German attacks were preceded and closely supported by the Stukas of Luftflotte IV under Generaloberst Freiherr Wolfram von Richthofen. To lessen the effectiveness of this weapon, as well as of German artillery, General Chuikov ordered that all front-line units stay engaged as closely as possible to the Germans. The Sixty-Second Army “hugged” its German adversaries so that German bombardment could not engage the front-line Russians without hitting their own troops. This resulted in there being virtually no “no-man’s land” on the Stalingrad battlefield. Across the entire front Red Army positions were literally within hand-grenade range of the German positions. Thus, attacking Germans were often confronted by defenders who were unaffected by the pre-attack artillery or air bombardment.