1943 tank battle in the Soviet Union
The Battle of Kursk was a major World War II Eastern Front battle between the forces of Nazi Germany and the Soviet Union near Kursk in southwestern Russia during the summer of 1943, resulting in a Soviet victory. The Battle of Kursk is the single largest battle in the history of warfare. It ranks only behind the Battle of Stalingrad several months earlier as the most often-cited turning point in the European theatre of the war. It was one of the costliest battles of the Second World War, the single deadliest armoured battle in history, and the opening day of the battle, 5 July, was the single costliest day in the history of aerial warfare in terms of aircraft shot down. The battle was further marked by fierce house-to-house fighting and hand-to-hand combat.
The battle began with the launch of the German offensive Operation Citadel (), on 5 July, which had the objective of pinching off the Kursk salient with attacks on the base of the salient from north and south simultaneously. After the German offensive stalled on the northern side of the salient, on 12 July, the Soviets commenced their Kursk Strategic Offensive Operation with the launch of Operation Kutuzov () against the rear of the German forces on the same side. On the southern side, the Soviets also launched powerful counterattacks the same day, one of which led to a large armoured clash, the Battle of Prokhorovka. On 3 August, the Soviets began the second phase of the Kursk Strategic Offensive Operation with the launch of the Belgorod–Kharkov offensive operation (Operation Polkovodets Rumyantsev, ) against the German forces on the southern side of the salient.
The Germans hoped to weaken the Soviet offensive potential for the summer of 1943, by cutting off and enveloping the forces that they anticipated would be in the Kursk salient. Hitler believed that a victory here would reassert German strength and improve his prestige with his allies, who he thought were considering withdrawing from the war. It was also hoped that large numbers of Soviet prisoners would be captured to be used as slave labour in the German armaments industry. The Soviet government had foreknowledge of the German plans from the Lucy spy ring. Aware months in advance that the attack would fall on the neck of the Kursk salient, the Soviets built a defence in depth designed to wear down the German armoured spearhead. The Germans delayed the offensive while they tried to build up their forces and waited for new weapons, giving the Red Army time to construct a series of deep defensive belts and establish a large reserve force for counter-offensives, with one German officer describing Kursk as "another Verdun".
The battle was the final strategic offensive that the Germans were able to launch on the Eastern Front. Because the Allied invasion of Sicily began during the battle, Adolf Hitler was forced to divert troops training in France to meet the Allied threat in the Mediterranean, rather than using them as a strategic reserve for the Eastern Front. As a result, Hitler cancelled the offensive at Kursk after only a week, in part to divert forces to Italy. Germany's heavy losses of men and tanks ensured that the victorious Soviet Red Army held a strategic initiative for the rest of the war. The Battle of Kursk was the first time in the Second World War that a German strategic offensive was halted before it could break through enemy defences and penetrate to its strategic depths. Though the Red Army had succeeded in winter offensives previously, their counter-offensives after the German attack at Kursk were their first successful summer offensives of the war. The battle has been called the "last gasp of Nazi aggression".
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Background.
As the Battle of Stalingrad slowly ground to its conclusion, the Red Army moved to a general offensive in the south, in Operation Little Saturn. By January 1943, a gap had opened between German Army Group B and Army Group Don, and the advancing Soviet armies threatened to cut off all German forces south of the Don River, including Army Group A operating in the Caucasus. Army Group Center came under significant pressure as well. Kursk was retaken by the Soviets on 8 February 1943, and Rostov on 14 February. The Soviet Bryansk, Western, and newly created Central Fronts prepared for an offensive which envisioned the encirclement of Army Group Centre between Bryansk and Smolensk. By February 1943 the southern sector of the German front was in strategic crisis.
Since December 1942, Field Marshal Erich von Manstein had been strongly requesting "unrestricted operational freedom" to allow him to use his forces in a fluid manner. On 6 February 1943, Manstein met with Hitler at his headquarters in Görlitz (now Gierłoż, Poland) to discuss the proposals he had previously sent. He received an approval from Hitler for a counteroffensive against the Soviet forces advancing in the Donbas region. On 12 February 1943, the remaining German forces were reorganised. To the south, Army Group Don was renamed Army Group South and placed under Manstein's command. Directly to the north, Army Group B was dissolved, with its forces and areas of responsibility divided between Army Group South and Army Group Centre. Manstein inherited responsibility for the massive breach in the German lines. On 18 February, Hitler arrived at Army Group South headquarters at Zaporizhia just hours before the Soviets liberated Kharkov, and had to be hastily evacuated on the 19th.
Once given freedom of action, Manstein intended to utilise his forces to make a series of counterstrokes into the flanks of the Soviet armoured formations, with the goal of destroying them while retaking Kharkov and Kursk. The II SS Panzer Corps had arrived from France in January 1943, refitted and up to near full strength. Armoured units from the 1st Panzer Army of Army Group A had pulled out of the Caucasus and further strengthened Manstein's forces.
The operation was hastily prepared and did not receive a name. Later known as Third Battle of Kharkov, it commenced on 21 February, as 4th Panzer Army under General Hoth launched a counter-attack. The German forces cut off the Soviet mobile spearheads and continued the drive north, retaking Kharkov on 15 March and Belgorod on 18 March. A Soviet offensive launched on 25 February by the Central Front against Army Group Centre had to be abandoned by 7 March to allow the attacking formations to disengage and redeploy to the south to counter the threat of the advancing German forces under Manstein. Exhaustion of both the Wehrmacht and the Red Army, coupled with the loss of mobility due to the onset of the spring rasputitsa, resulted in the cessation of operations for both sides by mid-March. The counteroffensive left a Soviet salient extending from north to south and from east to west into the German area of control, centred on the city of Kursk.
German plans and preparation.
The heavy losses sustained by Germany since the opening of Operation Barbarossa had resulted in a shortage in infantry and artillery. Units were in total 470,000 men understrength. For the Wehrmacht to undertake an offensive in 1943, the burden of the offensive, in both attacking the Soviet defences and holding ground on the flanks of the advance, would have to be carried primarily by the panzer divisions. On 10 March, Manstein presented a plan whereby the German forces would pinch off the Kursk salient with a rapid offensive commencing as soon as the spring rasputitsa had subsided.
On 13 March, Hitler signed Operational Order No. 5, which authorised several offensives, including one against the Kursk salient. As the last Soviet resistance in Kharkov petered out, Manstein attempted to persuade Günther von Kluge, commander of Army Group Centre, to immediately attack the Central Front, which was defending the northern face of the salient. Kluge refused, believing that his forces were too weak to launch such an attack. Further Axis advances were blocked by Soviet forces that had been shifted down from the Central Front to the area north of Belgorod. By mid-April, amid poor weather and with the German forces exhausted and in need of refitting, the offensives of Operational Order No. 5 were postponed.
On 15 April, Hitler issued Operational Order No. 6, which called for the Kursk offensive operation, codenamed "Zitadelle" ("Citadel"), to begin on 3 May or shortly thereafter. The directive was drafted by Kurt Zeitzler, the OKH Chief of Staff. For the offensive to succeed it was deemed essential to attack before the Soviets had a chance to prepare extensive defences or to launch an offensive of their own. Some military historians have described the operation using the term blitzkrieg (lightning war); other military historians do not use the term in their works on the battle.
Operation Citadel called for a double envelopment, directed at Kursk, to surround the Soviet defenders of five armies and seal off the salient. Army Group Centre would provide General Walter Model's 9th Army to form the northern pincer. It would cut through the northern face of the salient, driving south to the hills east of Kursk, securing the rail line from Soviet attack. Army Group South would commit the 4th Panzer Army, under Hermann Hoth, and Army Detachment Kempf, under Werner Kempf, to pierce the southern face of the salient. This force would drive north to meet the 9th Army east of Kursk. Manstein's main attack was to be delivered by Hoth's 4th Panzer Army, spearheaded by the II SS Panzer Corps under Paul Hausser. The XLVIII Panzer Corps, commanded by Otto von Knobelsdorff, would advance on the left while Army Detachment "Kempf" would advance on the right. The 2nd Army, under the command of Walter Weiss, would contain the western portion of the salient.
On 27 April, Model met with Hitler to review and express his concern regarding intelligence which showed the Red Army constructing very strong positions at the shoulders of the salient and having withdrawn their mobile forces from the area west of Kursk. He argued that the longer the preparation phase continued, the less the operation could be justified. He recommended completely abandoning Citadel, allowing the army to await and defeat the coming Soviet offensive, or radically revising the plan for Citadel. Though in mid-April, Manstein had considered the Citadel offensive profitable, by May he shared Model's misgivings.
Hitler called his senior officers and advisors to Munich for a meeting on 4 May. Hitler spoke for about 45 minutes on the reasons to postpone the attack, essentially reiterating Model's arguments. A number of options were put forth for comment: going on the offensive immediately with the forces at hand; delaying the offensive further to await the arrival of new and better tanks; radically revising the operation, or cancelling it altogether. Manstein advocated an early attack, but requested two additional infantry divisions, to which Hitler responded that none were available. Kluge spoke out strongly against postponement and discounted Model's intelligence. Albert Speer, the minister of Armaments and War Production, spoke about the difficulties of rebuilding the armoured formations and the limitations of German industry to replace losses. General Heinz Guderian argued strongly against the operation, stating "the attack was pointless". The conference ended without Hitler coming to a decision, but Citadel was not aborted. Three days later, OKW, Hitler's conduit for controlling the military, postponed the launch date for Citadel to 12 June.
Following this meeting, Guderian continued to voice his concerns over an operation that would likely degrade the panzer forces that he had been attempting to rebuild. He considered the offensive, as planned, to be a misuse of the panzer forces, as it violated two of the three tenets he had laid out as the essential elements for a successful panzer attack – surprise, deployment in mass, and suitable terrain. In his opinion, the limited German resources in men and materiel should be conserved, as they would be needed for the pending defence of western Europe. In a meeting with Hitler on 10 May he asked,
 ;templatestyles src="Template:Blockquote/styles.css" / ;Is it really necessary to attack Kursk, and indeed in the east this year at all? Do you think anyone even knows where Kursk is? The entire world doesn't care if we capture Kursk or not. What is the reason that is forcing us