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Operation Uranus (russian: Опера́ция «Ура́н», Operatsiya "Uran") was the codename of the
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...
Red Army The Workers' and Peasants' Red Army (Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, after ...
's 19–23 November 1942 strategic operation on the Eastern Front of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
which led to the
encirclement Encirclement is a military term for the situation when a force or target is isolated and surrounded by enemy forces. The situation is highly dangerous for the encircled force. At the strategic level, it cannot receive supplies or reinforcemen ...
of Axis forces in the vicinity of Stalingrad: the
German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
Sixth Army, the Third and Fourth Romanian armies, and portions of the German Fourth Panzer Army. The Red Army carried out the operation at roughly the midpoint of the five-month long Battle of Stalingrad, aiming to destroy German forces in and around Stalingrad. Planning for Operation Uranus had commenced in September 1942, and developed simultaneously with plans to envelop and destroy German
Army Group Center Army Group Centre (german: Heeresgruppe Mitte) was the name of two distinct strategic German Army Groups that fought on the Eastern Front in World War II. The first Army Group Centre was created on 22 June 1941, as one of three German Army for ...
(
Operation Mars Operation Mars (Russian: Операция «Марс»), also known as the Second Rzhev-Sychevka Offensive Operation (Russian: Вторая Ржевско-Сычёвская наступательная операция), was the codename fo ...
) and German forces in the
Caucasus The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically ...
. Due to the length of the front lines created by the German 1942 summer offensive, which had aimed at taking the Caucasus oil fields and the city of Stalingrad, German and other Axis forces were over-extended. The German decision to transfer several mechanized divisions from the Soviet Union to Western Europe exacerbated their situation. Furthermore, Axis units in the area were depleted by months of fighting, especially those which had taken part in the struggle for Stalingrad. The Germans could only count on the
XXXXVIII Panzer Corps XXXXVIII Panzer Corps (also: XXXXVIII Army Corp or XXXXVIII. Armeekorps), was a corps-level formation of the German Army which saw extensive action on both the Eastern and Western Fronts during World War II. History The corps was originally f ...
, which had the strength of a single
panzer This article deals with the tanks (german: panzer) serving in the German Army (''Deutsches Heer'') throughout history, such as the World War I tanks of the Imperial German Army, the interwar and World War II tanks of the Nazi German Wehrmacht ...
division, and the 29th Panzergrenadier Division as reserves to bolster their Romanian allies guarding the German Sixth Army's flanks. These Romanian armies lacked the heavy equipment to deal with Soviet armor. In contrast, the Red Army deployed over one million personnel for the offensive. Soviet troop movements were not without problems: concealing their build-up proved difficult, and Soviet units commonly arrived late due to logistical issues. Operation Uranus was first postponed by the Soviet high command ('' Stavka'') from 8 to 17 November, then to 19 November. At 07:20 Moscow time on 19 November, Soviet forces assaulted the northern flank of the Axis forces at Stalingrad; attacks in the south began the next day. Although the Romanian units succeeded in repelling the first Soviet attacks, by the end of 20 November the Third and Fourth Romanian armies were in headlong retreat, as the Red Army bypassed several German infantry divisions. German mobile reserves proved too weak to parry the Soviet mechanized spearheads, while the Sixth Army did not react quickly or decisively enough to disengage German armored forces in Stalingrad and re-orient them to countering the impending threat. By late 22 November, the northern and southern Soviet forces linked up at the town of Kalach, encircling some 290,000 Axis personnel east of the
Don River The Don ( rus, Дон, p=don) is the fifth-longest river in Europe. Flowing from Central Russia to the Sea of Azov in Southern Russia, it is one of Russia's largest rivers and played an important role for traders from the Byzantine Empire. Its ...
. Instead of attempting to break out of the encirclement, German
leader Leadership, both as a research area and as a practical skill, encompasses the ability of an individual, group or organization to "lead", influence or guide other individuals, teams, or entire organizations. The word "leadership" often gets vi ...
Adolf Hitler Adolf Hitler (; 20 April 188930 April 1945) was an Austrian-born German politician who was dictator of Nazi Germany, Germany from 1933 until Death of Adolf Hitler, his death in 1945. Adolf Hitler's rise to power, He rose to power as the le ...
decided to keep Axis forces in Stalingrad and to resupply them by air.


Background

On 28 June 1942, the
Wehrmacht The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the ''Heer'' (army), the '' Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmacht''" replaced the previo ...
began its offensive against Soviet forces opposite of
Army Group South Army Group South (german: Heeresgruppe Süd) was the name of three German Army Groups during World War II. It was first used in the 1939 September Campaign, along with Army Group North to invade Poland. In the invasion of Poland Army Group So ...
, codenamed
Case Blue Case Blue (German: ''Fall Blau'') was the German Armed Forces' plan for the 1942 strategic summer offensive in southern Russia between 28 June and 24 November 1942, during World War II. The objective was to capture the oil fields of the Cauc ...
. After breaking through Red Army forces by 13 July, German forces encircled and captured the city of
Rostov Rostov ( rus, Росто́в, p=rɐˈstof) is a town in Yaroslavl Oblast, Russia, one of the oldest in the country and a tourist center of the Golden Ring. It is located on the shores of Lake Nero, northeast of Moscow. Population: While ...
. Following the fall of Rostov, Hitler split German forces operating in the southern extremity of the southern Russian SFSR in an effort to simultaneously capture the city of Stalingrad and the Caucasus oil fields. The responsibility to take Stalingrad was given to the Sixth Army, which immediately turned towards the
Volga River The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of , and a catchme ...
and began its advance with heavy air support from the ''
Luftwaffe The ''Luftwaffe'' () was the aerial-warfare branch of the German ''Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the ''Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabtei ...
''s ''
Luftflotte 4 ''Luftflotte'' 4For an explanation of the meaning of Luftwaffe unit designation see Luftwaffe Organisation (Air Fleet 4) was one of the primary divisions of the German Luftwaffe in World War II. It was formed on March 18, 1939, from Luftwaffenkomm ...
''. On 7 August, two German panzer
corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...
were able to flank and encircle a Soviet force of 50,000 personnel and approximately 1,000 tanks, and on 22 August German forces began to cross the Don River to complete the advance towards the Volga. The following day, the Battle of Stalingrad began when vanguards of the Sixth Army penetrated the suburbs of the city. By November the Sixth Army had occupied most of Stalingrad, pushing the defending Red Army to the banks of the Volga River. By this stage, there were indications of an impending Soviet offensive which would target Wehrmacht forces around the city, including increased Soviet activity opposite the Sixth Army's flanks, and information gained through the interrogation of Soviet prisoners. The German command remained focused upon finalizing its capture of Stalingrad and were unsure of where or when the counterattack would take place. Actions were taken to provide a reserve behind the Italian and Romanian armies, with
6th Panzer Division The 6th Panzer Division ( en, 6th Tank Division) was an armoured division in the German Army, the ''Heer'', during World War II, established in October 1939. The division, initially formed as a light brigade, participated in the invasions of P ...
and two additional infantry divisions ordered to Russia from France. However, this move would only be completed by December. Head of Army General Staff General Franz Halder had been dismissed in September after his efforts to warn about the danger which was developing along the over-extended flanks of the Sixth Army and the
Fourth Panzer Army The 4th Panzer Army (german: 4. Panzerarmee) (operating as Panzer Group 4 (german: 4. Panzergruppe) from its formation on 15 February 1941 to 1 January 1942, when it was redesignated as a full army) was a German panzer formation during World War ...
. As early as September the Soviet '' Stavka'' (high command) began planning a series of counteroffensives to encompass the destruction of German forces in the south, fighting in Stalingrad and in the Caucasus, and against Army Group Center. Ultimately, command of Soviet efforts to relieve Stalingrad was put under the leadership of General
Aleksandr Vasilevsky Aleksandr Mikhaylovich Vasilevsky ( ru , Алекса́ндр Миха́йлович Василе́вский) (30 September 1895 – 5 December 1977) was a Soviet career-officer in the Red Army who attained the rank of Marshal of the Soviet ...
. The ''Stavka'' developed two major operations to be conducted against Axis forces near Stalingrad, ''Uranus'' and ''Saturn'', and also planned for
Operation Mars Operation Mars (Russian: Операция «Марс»), also known as the Second Rzhev-Sychevka Offensive Operation (Russian: Вторая Ржевско-Сычёвская наступательная операция), was the codename fo ...
, designed to engage German Army Group Center in an effort to distract reinforcements and to inflict as much damage as possible. Operation Uranus involved the use of large Soviet mechanized and infantry forces to encircle German and other Axis forces directly around Stalingrad. As preparations for the offensive commenced, the attack's starting points were positioned on stretches of front to the rear of the German Sixth Army, largely preventing the Germans from reinforcing those sectors quickly where
Axis An axis (plural ''axes'') is an imaginary line around which an object rotates or is symmetrical. Axis may also refer to: Mathematics * Axis of rotation: see rotation around a fixed axis * Axis (mathematics), a designator for a Cartesian-coordinat ...
units were too overstretched to occupy effectively. The offensive was a
double envelopment The pincer movement, or double envelopment, is a military maneuver in which forces simultaneously attack both flanks (sides) of an enemy formation. This classic maneuver holds an important foothold throughout the history of warfare. The pin ...
; Soviet mechanized forces would penetrate deep into the German rear, while another attack would be made closer to the German Sixth Army in an effort to attack German units there directly in the rear. While the Red Army prepared, the German high commanders—influenced by their belief that the Red Army, building up opposite German Army Group Center to the north, was incapable of mounting a simultaneous offensive in the south—continued to deny the possibility of an impending Soviet offensive.


Comparison of forces


Axis

Case Blue involved German and other Axis forces sprawled out across a front over wide and several hundred kilometers deep, while the decision to conquer Stalingrad had stretched Axis forces even more thinly by drawing away personnel eastwards. For example, in early July the Sixth Army was defending a line, while also committing to an offensive which involved a distance of around . Army Group B, which was split from Army Group South (the forces operating around the Caucasus were named Army Group A), seemed strong on paper: it included the Second and Sixth German, Fourth ''Panzer'', Fourth and
Third Third or 3rd may refer to: Numbers * 3rd, the ordinal form of the cardinal number 3 * , a fraction of one third * Second#Sexagesimal divisions of calendar time and day, 1⁄60 of a ''second'', or 1⁄3600 of a ''minute'' Places * 3rd Street (d ...
Romanian, Eighth Italian, and
Second The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds ...
Hungarian Armies. Army Group B had the 48th Panzer Corps, which had the strength of a weakened panzer division, and a single infantry division as reserves. For the most part the German flanks were held by arriving non-German Axis armies, while German forces were used to spearhead continued operations in Stalingrad and in the Caucasus. While Adolf Hitler expressed confidence in the ability of non-German Axis units to protect German flanks, in reality these units relied on largely obsolete equipment and horse-drawn artillery, while in many cases the harsh treatment of
enlisted personnel An enlisted rank (also known as an enlisted grade or enlisted rate) is, in some armed services, any rank below that of a commissioned officer. The term can be inclusive of non-commissioned officers or warrant officers, except in United States mi ...
by
officers An officer is a person who has a position of authority in a hierarchical organization. The term derives from Old French ''oficier'' "officer, official" (early 14c., Modern French ''officier''), from Medieval Latin ''officiarius'' "an officer," f ...
caused poor morale. In regard to mechanization, the First Romanian Armored Division was equipped with around 100 Czech-built R-2
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engi ...
s, armed with a
gun A gun is a ranged weapon designed to use a shooting tube (gun barrel) to launch projectiles. The projectiles are typically solid, but can also be pressurized liquid (e.g. in water guns/cannons, spray guns for painting or pressure washing, p ...
ineffective against the armor of Soviet
T-34 The T-34 is a Soviet medium tank introduced in 1940. When introduced its 76.2 mm (3 in) tank gun was less powerful than its contemporaries while its 60-degree sloped armour provided good protection against anti-tank weapons. The C ...
tanks. Similarly, their PaK anti-tank guns were also antiquated and they were largely short of ammunition. Only after repeated requests did the Germans send the Romanian units PaK guns; six per division. These units were extended over very large sections of front; for example, the Third Romanian Army occupied a line long, while the Fourth Romanian Army protected a line no less than long. The Italians and Hungarians were positioned at the Don west of the Third Romanian Army, but the German commanders did not hold in high regard the capability of those units to fight. Generally, German forces were in no better shape; they were weakened by months of fighting the Red Army, and, while ''Stavka'' raised new armies, the German high command attempted to maintain its existing mechanized units. Furthermore, during the course of the German offensive between May and November 1942, two motorized divisions, the elite
Leibstandarte The 1st SS Panzer Division Leibstandarte SS Adolf Hitler or SS Division Leibstandarte, abbreviated as LSSAH, (german: 1. SS-Panzerdivision "Leibstandarte SS Adolf Hitler") began as Adolf Hitler's personal bodyguard unit, responsible for guardin ...
and the
Großdeutschland Pan-Germanism (german: Pangermanismus or '), also occasionally known as Pan-Germanicism, is a pan-nationalist political idea. Pan-Germanists originally sought to unify all the German-speaking people – and possibly also Germanic-speaking ...
, were redeployed from Army Group A to the West, to provide a mechanized reserve in case of an
Allied landing in France The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allies of World War II, Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and ...
. The Sixth Army had also suffered many casualties during the fighting in the city of Stalingrad proper. In some cases, such as that of the 22nd Panzer Division, their equipment was no better than that of the First Romanian Armored Division. German formations were also overextended along large stretches of front; the XI Army Corps, for example, had to defend a front around long.


Soviet

The Red Army allocated an estimated 1,100,000 personnel, 804 tanks, 13,400 artillery pieces and over 1,000 aircraft for the upcoming offensive. Across the Third Romanian Army, the Soviets placed the redeployed 5th Tank Army, as well as the 21st and 65th Armies, in order to penetrate and overrun the German flanks. The German southern flank was targeted by the Stalingrad Front's 51st and 57th Armies, led by the 13th and 4th Mechanized Corps; these would punch through the Fourth Romanian Army, in order to link up with the 5th Tank Army near the town of Kalach. In total, the Soviets had amassed 11 armies and various independent tank brigades and corps. Preparations for the offensive were, however, far from perfect; on 8 November, ''Stavka'' issued orders to postpone the launch date of the operation, because transportation delays had prevented many units from being able to move into place. In the meantime, units at the front went through a number of war games to practice repelling an enemy counterattack and exploiting a breakthrough with mechanized forces. These movements were masked through a deception campaign by the Soviets, including the decrease of radio traffic, camouflage, operational security, using couriers for communication instead of radio, and active deception, such as increasing troop movements around Moscow. Troops were ordered to build defensive fortifications, to offer false impressions to the Germans, while fake bridges were put up to divert attention from the real bridges being built across the Don River. The Red Army also stepped up attacks against Army Group Center and set up dummy formations to maintain the idea of a main offensive against German forces in the center. The Soviet Stalingrad Front forces were subject to heavy bombardment, making mobilization more difficult. The 38 engineer battalions allocated to the front were responsible for ferrying ammunition, personnel and tanks across the Volga River while carrying out minor reconnaissance along sections of the front which were to be the breakthrough points of the impending offensive. In three weeks the Red Army transported around 111,000 soldiers, 420 tanks and 556 artillery pieces across the Volga. On 17 November Vasilevsky was recalled to Moscow, where he was shown a letter written to Stalin by General Volsky, commander of the 4th Mechanized Corps, who urged calling off the offensive. Volsky believed the offensive as planned was doomed to failure due to the state of the forces earmarked for the operation; he suggested postponing the offensive and redesigning it entirely. Many Soviet soldiers had not been issued with winter garments, and many died of frostbite, "due to the irresponsible attitude of commanders". Although Soviet intelligence made honest efforts to collect as much information as possible on the disposition of the Axis forces arrayed in front of them, there was not much information on the state of the German Sixth Army. Vasilevsky wanted to call off the offensive. The Soviet commanders, overruling Vasilevsky, agreed the offensive would not be called off, and Stalin personally rang Volsky, who reiterated his intention to carry out the operation if ordered to do so.


Soviet offensive

Operation Uranus, postponed until 17 November, was again postponed for two days when Soviet General
Georgy Zhukov Georgy Konstantinovich Zhukov ( rus, Георгий Константинович Жуков, p=ɡʲɪˈorɡʲɪj kənstɐnʲˈtʲinəvʲɪtɕ ˈʐukəf, a=Ru-Георгий_Константинович_Жуков.ogg; 1 December 1896 – ...
was told the air units allotted to the operation were not ready; it was finally launched on 19 November. Shortly after 5 a.m. Lieutenant Gerhard Stöck, posted with the Romanian IV Army Corps on the Kletskaya sector called Sixth Army headquarters housed in Golubinsky, offering intelligence on a pending attack which would occur after 05:00 that morning; however, because his call had come in after five and false alarms were common during this time, the duty officer on the other end of the line was not keen on waking the Army Chief of Staff, General Arthur Schmidt. Although Soviet commanders suggested postponing the bombardment due to poor visibility from thick fog, front headquarters decided to proceed. At 07:20 Moscow time (05:20 German time) Soviet artillery commanders received the codeword "Siren", prompting an 80-minute artillery bombardment directed almost entirely against the non-German Axis units protecting the German flanks. At 07:30, the Katyusha rocket-launchers fired the first salvos and were soon joined by the 3,500 guns and mortars stretching along the few breakthrough sectors in front of the Third Romanian Army and the northern shoulder of the German Sixth Army's flank. Although thick fog prevented the Soviet artillery from correcting their aim, their weeks of preparation and ranging allowed them to lay down accurate fire on enemy positions along the front. The effect was devastating, as communication lines were breached, ammunition dumps destroyed and forward observation points shattered. Many Romanian personnel who survived the bombardment began to flee to the rear. Soviet heavy artillery aimed at Romanian artillery positions and second-echelon formations also caught the retreating Romanian soldiers.


Against the Third Romanian Army: 19 November

The offensive against the Third Romanian Army began at 08:50, led by the 21st and 65th Soviet Armies and the 5th Tank Army. The first two assaults were repulsed by the Romanian defenders, and the effects of the heavy artillery bombardment had actually made it more difficult for Soviet armor to navigate through the minefields and terrain. However, the lack of heavy
anti-tank artillery Anti-tank warfare originated from the need to develop technology and tactics to destroy tanks during World War I. Since the Triple Entente deployed the first tanks in 1916, the German Empire developed the first anti-tank weapons. The first deve ...
caused the Romanian defense to collapse; a breakthrough by the 4th Tank Corps and 3rd Guards Cavalry Corps was established by noon. Soon after, the 5th Tank Army was able to gain a breakthrough against the Second Romanian Corps, followed by the Eighth Cavalry Corps. As Soviet armor navigated through the thick fog by compass, overrunning Romanian and German artillery positions, three Romanian infantry divisions began to fall back in disarray; the Third Romanian Army had been outflanked to the west and east. After receiving the news of the Soviet attack, Sixth Army headquarters failed to order the 16th and 24th Panzer Divisions, hitherto engaged in Stalingrad, to reorient themselves to bolster the Romanian defenses; instead the task was given to the seriously understrength and poorly equipped 48th Panzer Corps. The 48th Panzer Corps had fewer than 100 serviceable modern tanks. Furthermore, they lacked fuel, and the shortage of tanks forced commanders to organize tank crews into infantry companies; the 22nd Panzer Division, which formed part of the corps, was almost completely destroyed in the fighting that ensued. The 22nd had entered the fighting with fewer than thirty working tanks, and left with a company of tanks. The Romanian 1st Armored Division, attached to the 48th Panzer Corps, engaged the Soviet 26th Tank Corps after having lost communications with their German corps commanders, and were defeated by 20 November. As the Soviets continued to advance southwards, many Soviet tank crews began to suffer from the worsening
blizzard A blizzard is a severe snowstorm characterized by strong sustained winds and low visibility, lasting for a prolonged period of time—typically at least three or four hours. A ground blizzard is a weather condition where snow is not falling ...
, which affected men and equipment and blocked gunsights. It was not uncommon for tanks to lose traction and for crew members to break their arm from being tossed around inside the hull. However, the blizzard also neutralized the German corps' coordination. The rout of the Third Romanian Army began by the end of 19 November. The Soviet 21st Army and 5th Tank Army captured 27,000 Romanians—the bulk of three divisions—and then continued their advance southwards. Soviet cavalry was used to exploit the breakthrough, sever communications between the Romanians and the Italian 8th Army, and to block any counterattack against the Soviet flank. While the Red Air Force strafed retreating Romanian soldiers, the ''Luftwaffe'' provided only negligible opposition. The withdrawal of the 1st Romanian Cavalry Division, originally positioned on the German 376th Infantry Division's flank, allowed the 65th Army to bypass German defenses. As German forces began to react late on 19 November, another attack was launched on the Sixth Army's southern flank.


Against the German southern flank: 20 November

In the early morning of 20 November ''Stavka'' telephoned Stalingrad Front commander
Andrei Yeremenko , birth_date = , death_date = , image = Маршал Советского Союза Герой Советского Союза Андрей Иванович Ерёменко (cropped).jpg , image_size = , caption = Y ...
asking if he would begin his portion of the offensive on schedule, at 08:00. He responded he would do so only if the fog lifted; although the 51st Army opened its artillery barrage on time because front headquarters could not contact the division, the rest of the forces prepared for the operation received orders to postpone the attack until 10:00. The 51st Army engaged the Romanian 6th Corps, taking many prisoners. As the 57th Army joined the attack at 10:00, the situation developed in such a way that the Stalingrad Front could throw its armored corps into battle. The German 297th Infantry Division watched as its Romanian support failed to put up resistance against the
Red Army The Workers' and Peasants' Red Army (Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, after ...
. However, confusion and lack of control caused the Soviet 4th and 13th Mechanized Corps to stumble as they began to exploit the breakthroughs achieved by the opening offensive. The Germans responded quickly by redeploying their only reserve in the area, the 29th Panzergrenadier Division. Despite initial victories against Soviet armored forces, the Romanian collapse forced the division to again redeploy in an attempt to shore up defenses to the south. The 29th Panzergrenadier Division's counterattack cost the Red Army around fifty tanks, and caused Soviet commanders to worry about the safety of their left flank. However, the German division's redeployment meant that by the end of the day only the 6th Romanian Cavalry Regiment stood between advancing Soviet forces and the Don River.


Continued operations: 20–23 November

While the Stalingrad Front launched its offensive on 20 November, the 65th Soviet Army continued to apply pressure to the German 11th Corps along the northern shoulder of the Sixth Army's flank. The Red Army's 4th Tank Corps advanced beyond the German 11th Corps, while the 3rd Guards Cavalry Corps crashed into the German unit's rear. The German 376th Infantry Division and the Austrian 44th Infantry Division began to redeploy to face the enemy on their flanks, but were hindered by shortage of fuel. The 14th Panzer Division's panzer regiment destroyed a flanking regiment of the Soviet 3rd Guards Cavalry Corps, but its anti-tank artillery suffered heavy casualties when it was overrun by Soviet forces. By the end of the day the Soviet 1st Tank Corps was chasing the retreating 48th Panzer Corps, while the Soviet 26th Tank Corps had captured the town of Perelazovsky, almost to the northwest of Stalingrad. The Red Army's offensive continued on 21 November, with forces of the Stalingrad Front achieving penetrations of up to . By this time remaining Romanian units in the north were being destroyed in isolated battles, while the Red Army began to engage flanking portions of the German Fourth Panzer and Sixth Armies. The German 22nd Panzer Division, despite attempting a short counterattack, was reduced to little more than a tank company and forced to withdraw to the southwest. The Soviet 26th Tank Corps, having destroyed a large portion of the Romanian 1st Armored Division, continued its advance to the southeast, avoiding engaging enemy left behind, although remnants of the Romanian 5th Corps were able to reorganize and put up a hastily constructed defense in the hope that it would be aided by the German 48th Panzer Corps. Surrounded by 5th Tank Army on one side and 21st Army on the other, the bulk of 3rd Romanian Army was isolated in the region of Raspopinskaya where General Lascăr took control of the remnants of 4th and 5th Corps, whereas the neighboring 1st Armored Division was still trying to break free and link with 22nd Panzer Division. That day German General
Friedrich Paulus Friedrich Wilhelm Ernst Paulus (23 September 1890 – 1 February 1957) was a German field marshal during World War II who is best known for commanding the 6th Army during the Battle of Stalingrad (August 1942 to February 1943). The battle ende ...
, commander of the Sixth Army, received reports that the Soviets were less than from his headquarters; furthermore, there were no remaining units which could contest the Soviet advance. In the south, after a brief halt, the Soviet 4th Mechanized Corps continued its advance north, removing German defenders from several towns in the area, towards Stalingrad. As German forces in and around Stalingrad were at risk, Hitler ordered German forces in the area to establish an "all-around defensive position" and designated forces between the Don and Volga rivers as "Fortress Stalingrad", rather than allow the Sixth Army to attempt to break out. The Sixth Army, other Axis units, and most of the Fourth Panzer Army's German units were caught inside the growing Soviet encirclement. Only the 16th Panzergrenadier Division began to fight its way out. Lack of coordination between Soviet tanks and infantry as the Red Army's tank corps attempted to exploit the breakthrough along the Germans' southern flank allowed much of the Fourth Romanian Army to escape destruction. On 22 November Soviet forces began to cross the Don River and continued their advance towards the town of Kalach. German forces defending Kalach, mostly composed of maintenance and supply personnel, were not aware of the Soviet offensive until 21 November, and even then did not know in what strength the Red Army was approaching. The task of taking the bridge at Kalach was given to the Soviet 26th Tank Corps, which used two captured German tanks and a reconnaissance vehicle to approach it and fire on the guards. Soviet forces broke into the town by mid-morning and drove the defenders out, allowing themselves and the 4th Tank Corps to link up with the Red Army's 4th Mechanized Corps approaching from the south. Meanwhile, on a later date of Dec.13, the 26th Tank Corps split of southwards along the Liska river inlet in a small advance towards a bridge near the town of Nish Tschirskaya. The reason for the attack was not only to push the German forces away from the railroads leading to Stalingrad but to also cut the support provided to the German 6th army still surrounded near the Don. The Russian forces had attacked the German positions with a bombardment from ''BM-13'' Katyusha rocket launchers which were followed by a tank attack of mostly T-34s. The attack lead to the retreat of the German forces in the area. The attack encirclement of German forces in Stalingrad was completed on 22 November 1942. That day Soviet formations also continued to fight pockets of Romanian resistance, such as that put up by the Romanian 5th Corps. The encirclement of 6th Army was effective on 23 November. Around 16:00, near the village of Sovetsky, the forward detachments of 36th Mechanized Brigade from the Stalingrad Front's 4th Mechanized Corps sighted the approaching tanks of 45th Brigade from the Southwestern Front's 4th Tank Corps. At first they mistook them for Germans because they did not fire green flares as was agreed for a reconnaissance signal and several tanks were damaged in a short exchange of fire. After clarification the linkup was achieved. It was reenacted later for the newsreels. The junction between the armored troops of 21st and 51st Armies from Vatutin's and Yeremenko's fronts completed the surrounding of Paulus's group of forces: two German armies among the most powerful in the ''Heer'', 22 divisions and 150 separate regiments or battalions, and an enormous amount of materiel. Never before in the war were so many troops of the German army caught together. Such a feat was so unusual that the ''Stavka''s own initial estimation of the encircled enemy force was only a quarter of its actual strength, because besides the fighting troops there was a huge number of extra personnel from various professions, engineer sections, Luftwaffe ground staff and others. Fighting continued on 23 November as the Germans attempted in vain to mount local counterattacks to break the encirclement. By this time Axis personnel inside the encirclement moved east towards Stalingrad to avoid Soviet tanks, while those that managed to escape the encirclement moved west toward German and other Axis forces.


Aftermath

Operation Uranus trapped between 250,000 and 300,000 Axis soldiers within an area stretching from east to west and north to south. The pocket contained four infantry corps, a panzer corps belonging to the Fourth Panzer and Sixth Armies, and surviving elements of two Romanian divisions, a Croatian infantry regiment and other specialist units. Trapped equipment included around 100 tanks, 2,000 artillery pieces and mortars and 10,000 trucks. The withdrawal to Stalingrad left lines of retreat littered with helmets, weapons and other equipment, and heavy equipment which had been destroyed was left on the side of the road. Bridges spanning the Don River were jammed with traffic, as surviving Axis soldiers hastily made their way westwards in the cold weather, attempting to escape Soviet armor and infantry threatening to cut them off from Stalingrad. Many wounded Axis personnel were trampled, and many of those who attempted to cross the river on foot on the ice fell through and drowned. Hungry soldiers filled Russian villages scouring for supplies, while supply dumps were often looted in search of cans of food. The last stragglers crossed the Don River by 24 November, and demolished the bridges to seal off the Fourth Panzer and Sixth Armies from the Soviets in Stalingrad. The Sixth Army, in the midst of chaos, began to build defensive lines, hampered by the lack of fuel, ammunition and rations, and further burdened by the advancing Russian winter. It was also tasked with plugging gaps in the line caused by the disintegrating Romanian forces. On 23 November, some German units destroyed or burned everything not necessary for a breakout operation and began to pull back towards the northern end of Stalingrad. However, after the Germans had abandoned their winter bunkers, the Soviet 62nd Army was able to destroy the German 94th Infantry Division on the open ground; survivors of the German division were attached to the 16th and 24th Panzer Divisions. Although German military commanders were of the opinion that '' Heer'' forces caught in the encirclement should break out, between 23 and 24 November Hitler decided instead to hold the position and attempt to resupply the Sixth Army by air. The personnel trapped in Stalingrad would require at least of supplies per day, a task which the depleted ''Luftwaffe'' was in no condition to carry out. Furthermore, the revived
Red Air Force The Soviet Air Forces ( rus, Военно-воздушные силы, r=Voyenno-vozdushnyye sily, VVS; literally "Military Air Forces") were one of the air forces of the Soviet Union. The other was the Soviet Air Defence Forces. The Air Forces ...
was a threat to German aircraft attempting to fly over the encirclement. Although by December the ''Luftwaffe'' had assembled a fleet of around 500 aircraft, this was still insufficient to supply the Sixth Army and elements of the Fourth Panzer Army with the required supplies. During the first half of December the Sixth Army received less than 20% of their daily requirements. In the meantime, the Red Army strengthened its outer encirclement with the intention of destroying the encircled German units. Soviet armies would attack German units to the east and the south, aiming to split German units into smaller groups. These orders became effective on 24 November, and were to be executed without a major regrouping or movement of reserves. The outer encirclement ran for an estimated , although only three-quarters of that distance was actually covered by Soviet troops; the distance between the outer and inner encirclements was around . The Soviet high command also began planning for
Operation Saturn Operation Little Saturn was a Red Army offensive on the Eastern Front of World War II that led to battles in Don and Chir rivers region in German-occupied Soviet Union territory in 16–30 December 1942. The success of Operation Uranus, launch ...
, which was aimed at destroying the Italian Eighth Army and cutting off German forces in the
Caucasus The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically ...
. The Soviet ''Stavka'' planned ''Saturn'' to start on about 10 December. German forces in the area had been further split up, as German general
Erich von Manstein Fritz Erich Georg Eduard von Manstein (born Fritz Erich Georg Eduard von Lewinski; 24 November 1887 – 9 June 1973) was a German Field Marshal of the ''Wehrmacht'' during the Second World War, who was subsequently convicted of war crimes and ...
was given command of the newly created
Army Group Don Army Group Don was a short-lived army group of the German Army during World War II. On 20 November 1942 Hitler again ordered the reorganization of the southern front in the Soviet Union. The order was following: "Between the Army Group A and B a ...
, comprising the German Fourth Panzer and Sixth Armies, and the Third and Fourth Romanian Armies. Although the situation looked bleak for the Germans, a moment of relative calm had settled after the end of Operation Uranus; German and Soviet forces were planning their next movements.


See also

* Romanian Armies in the Battle of Stalingrad *
Operation Little Saturn Operation Little Saturn was a Red Army offensive on the Eastern Front of World War II that led to battles in Don and Chir rivers region in German-occupied Soviet Union territory in 16–30 December 1942. The success of Operation Uranus, launc ...


Notes


References

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External links


Order of Battle for operation Uranus
{{DEFAULTSORT:Uranus, Operation Conflicts in 1942 1942 in the Soviet Union Battle of Stalingrad Battles and operations of the Soviet–German War Military operations of World War II involving Germany Encirclements in World War II November 1942 events