Battle of Stalingrad (17 Jul 1942 – 2 Feb 1943)

Stalingrad was strategically important to both sides as a major industrial and transport hub on the Volga River. Whoever controlled Stalingrad would have access to the oil fields of the Caucasus and would gain control of the Volga. Germany, already operating on dwindling fuel supplies, focused its efforts on moving deeper into Soviet territory and taking the oil fields at any cost. On 4 August, the Germans launched an offensive by using the 6th Army and elements of the 4th Panzer Army. The attack was supported by intense Luftwaffe bombing that reduced much of the city to rubble. The battle degenerated into house-to-house fighting as both sides poured reinforcements into the city. By mid-November, the Germans, at great cost, had pushed the Soviet defenders back into narrow zones along the west bank of the river.

On 19 November, the Red Army launched Operation Uranus, a two-pronged attack targeting the Romanian armies protecting the 6th Army's flanks.

The Axis flanks were overrun and the 6th Army was cut off and surrounded in the Stalingrad area. Adolf Hitler was determined to hold the city at all costs and forbade the 6th Army from attempting a breakout; instead, attempts were made to supply it by air and to break the encirclement from the outside. The Soviets were successful in denying the Germans the ability to resupply through the air which strained the German forces to their breaking point. Nevertheless, the German forces were determined to continue their advance and heavy fighting continued for another two months. On 2 February 1943, the German 6th Army, having exhausted their ammunition and food, finally capitulated after over five months of fighting, making it the first of Hitler's field armies to surrender during World War II.

Background 

By the spring of 1942, despite the failure of Operation Barbarossa to decisively defeat the Soviet Union in a single campaign, the Wehrmacht had captured vast expanses of territory, including Ukraine, Belarus, and the Baltic republics. On the Western Front, Germany held most of Europe, the U-boat offensive in the Atlantic was holding American support at bay, and in North Africa Erwin Rommel had just captured Tobruk.  In the east, the Germans had stabilised a front running from Leningrad south to Rostov, with a number of minor salients. Hitler was confident that he could break the Red Army despite the heavy German losses west of Moscow in winter 1941–42, because Army Group Centre (Heeresgruppe Mitte) had been unable to engage 65% of its infantry, which had meanwhile been rested and re-equipped. Neither Army Group North nor Army Group South had been particularly hard-pressed over the winter.[28] Stalin was expecting the main thrust of the German summer attacks to be directed against Moscow again.

Hitler decided that Germany's summer campaign in 1942 would be directed at the southern parts of the Soviet Union. The initial objectives in the region around Stalingrad were to destroy the industrial capacity of the city and to block the Volga River traffic connecting the Caucasus and Caspian Sea to central Russia, as the city is strategically located near a big bend of the Volga. The Germans cut the pipeline from the oilfields when they captured Rostov on 23 July. The capture of Stalingrad would make the delivery of Lend-Lease supplies via the Persian Corridor much more difficult.

On 23 July 1942, Hitler personally rewrote the operational objectives for the 1942 campaign, greatly expanding them to include the occupation of the city of Stalingrad. Both sides began to attach propaganda value to the city, which bore the name of the Soviet leader meaning that the capture of the city would have been a great ideological victory for the Reich. Hitler proclaimed that after Stalingrad's capture, its male citizens were to be killed and all women and children were to be deported because its population was "thoroughly communistic" and "especially dangerous". Hitler planned for the fall of the city firmly securing the northern and western flanks of the German armies as they advanced on Baku, with the aim of gaining its strategic petroleum resources for Germany.The expansion of objectives was a significant factor in Germany's failure at Stalingrad, caused by German overconfidence and an underestimation of Soviet reserves.

The Soviets realised their critical situation, ordering everyone who could hold a rifle into the fight.

Order of Battle 

During the defence of Stalingrad, the Red Army deployed five armies in and around the city (28th, 51st, 57th, 62nd and 64th Armies); and an additional nine armies in the encirclement counteroffensive (24th, 65th, 66th Armies and 16th Air Army from the north as part of the Don Front offensive, and 1st Guards Army, 5th Tank, 21st Army, 2nd Air Army and 17th Air Army from the south as part of the Southwestern Front).

End of Battle 

Operation Winter Storm 

Manstein's plan to rescue the Sixth Army – Operation Winter Storm – was developed in full consultation with Führer headquarters. It aimed to break through to the Sixth Army and establish a corridor to keep it supplied and reinforced, so that, according to Hitler's order, it could maintain its "cornerstone" position on the Volga, "with regard to operations in 1943". Manstein, however, who knew that Sixth Army could not survive the winter there, instructed his headquarters to draw up a further plan in the event of Hitler's seeing sense.

This would include the subsequent breakout of Sixth Army, in the event of a successful first phase, and its physical reincorporation in Army Group Don. This second plan was given the name Operation Thunderclap. Winter Storm, as Zhukov had predicted, was originally planned as a two-pronged attack. One thrust would come from the area of Kotelnikovo, well to the south, and around 160 kilometres (100 mi) from the Sixth Army. The other would start from the Chir front west of the Don, which was little more than 60 kilometres (40 mi) from the edge of the Kessel, but the continuing attacks of Romanenko's 5th Tank Army against the German detachments along the river Chir ruled out that start-line.

This left only the LVII Panzer Corps around Kotelnikovo, supported by the rest of Hoth's very mixed Fourth Panzer Army, to relieve Paulus's trapped divisions. The LVII Panzer Corps, commanded by General Friedrich Kirchner, had been weak at first. It consisted of two Romanian cavalry divisions and the 23rd Panzer Division, which mustered no more than thirty serviceable tanks. The 6th Panzer Division, arriving from France, was a vastly more powerful formation, but its members hardly received an encouraging impression. The Austrian divisional commander, General Erhard Raus, was summoned to Manstein's royal carriage in Kharkov station on 24 November, where the field marshal briefed him. "He described the situation in very sombre terms", recorded Raus.

Three days later, when the first trainload of Raus's division steamed into Kotelnikovo station to unload, his troops were greeted by "a hail of shells" from Soviet batteries. "As quick as lightning, the Panzergrenadiers jumped from their wagons. But already the enemy was attacking the station with their battle-cries of 'Urrah!'"

By 18 December, the German Army had pushed to within 48 km (30 mi) of Sixth Army's positions. However, the predictable nature of the relief operation brought significant risk for all German forces in the area. The starving encircled forces at Stalingrad made no attempt to break out or link up with Manstein's advance. Some German officers requested that Paulus defy Hitler's orders to stand fast and instead attempt to break out of the Stalingrad pocket. Paulus refused, concerned about the Red Army attacks on the flank of Army Group Don and Army Group B in their advance on Rostov-on-Don, "an early abandonment" of Stalingrad "would result in the destruction of Army Group A in the Caucasus", and the fact that his 6th Army tanks only had fuel for a 30 km advance towards Hoth's spearhead, a futile effort if they did not receive assurance of resupply by air. Of his questions to Army Group Don, Paulus was told, "Wait, implement Operation 'Thunderclap' only on explicit orders!" – Operation Thunderclap being the code word initiating the breakout.

Conclusion 

The events of the Battle for Stalingrad have been covered in numerous media works of British, American, German, and Russian origin, for its significance as a turning point in the Second World War and for the loss of life associated with the battle. The term Stalingrad has become almost synonymous with large-scale urban battles with high casualties on both sides.