|East Prussian Offensive|
|Part of the Eastern Front of World War II|
Soldiers of the German 4th Army man positions on the East Prussian border immediately prior to the offensive
|Nazi Germany||Soviet Union|
|Commanders and leaders|
Dietrich von Saucken
200,000 Volkssturm troopers
|Casualties and losses|
Unknown killed or wounded|
126,464 dead or missing|
458,314 wounded and sick
The East Prussian Offensive was a strategic offensive by the Red Army against the German Wehrmacht on the Eastern Front (World War II). It lasted from 13 January to 25 April 1945, though some German units did not surrender until 9 May. The Battle of Königsberg was a major part of the offensive, which ended in victory for the Red Army.
The East Prussian Offensive is known to German historians as the Second East Prussian Offensive. The First East Prussian Offensive (also known as the Gumbinnen Operation), took place from 16–27 October 1944, and was carried out by the 3rd Belorussian Front under General I.D. Chernyakhovsky as part of the Memel Offensive of the 1st Baltic Front. The Soviet forces took heavy casualties while penetrating 30–60 km (19–37 mi) into east-northern part of Poland, and the offensive was postponed until greater reserves could be gathered.
The East Prussian Offensive
The main thrust of the offensive was to be conducted by the 3rd Belorussian Front under Ivan Chernyakhovsky. His forces were tasked with driving westwards towards Königsberg, against the defensive positions of the 3rd Panzer Army and 4th Army, the northern armies of General Georg-Hans Reinhardt's Army Group Centre.
From the north, on Chernyakhovsky's right flank, General Hovhannes Bagramyan's 1st Baltic Front would attack the positions of the 3rd Panzer Army on the Neman, as well as crushing its small bridgehead at Memel. Chernyakhovsky's left flank would be supported by the 2nd Belorussian Front of Marshal Konstantin Rokossovsky, which was initially ordered to push north-west to the Vistula, through the lines of the 2nd Army, thereby sealing off the whole of East Prussia.
Opening of the offensive
The Soviet offensive began on 13 January with a heavy preparatory bombardment. At first, the Red Army made disappointing progress; the 3rd Belorussian Front gained just 1.5 km on the first day. Over the next five days, the Soviets managed to advance only a further 20 km, at the cost of very high casualties. Eventually, after almost two weeks of severe fighting, the Red Army began making steady progress, although again, this came at the price of high losses; the defenders having the advantage of substantial fortifications in the Insterburg Gap east of Königsberg, and around Heilsberg. Over the next few days, the 3rd Panzer Army of General Erhard Raus was largely destroyed or withdrew into Königsberg, while General Friedrich Hossbach′s 4th Army began to find itself outflanked.
Against fierce resistance, Rokossovsky attacked across the Narew on 14 January; on 20 January, he received orders to swing the axis of his advance northward toward Elbing. This sudden change of direction caught Reinhardt and Hossbach by surprise; on Rokossovsky's right flank, the 3rd Guards Cavalry Corps captured the major town of Allenstein on 22 January, threatening the rear of Hossbach's formation. On 24 January, Rokossovsky's leading tank units had reached the shore of the Vistula Lagoon, severing land communications with the rest of German armed forces for the entire 4th Army along with several divisions of the 2nd Army which were now trapped in a pocket centered on East Prussia. On the same day, Hossbach began to pull his units back from the fortified town of Lötzen—a center of the East Prussian defence system—and through a series of forced marches attempted to break out westward.
In the meantime, Chernyakhovsky had succeeded in rolling up the defences from the East, pushing the remnants of the 3rd Panzer Army into Königsberg and Samland. On 28 January, Bagramyan's forces captured Memel; the remnants of the three divisions defending the town were evacuated and redeployed in Samland to reinforce the defence there.
The Siege of Königsberg and the Heiligenbeil pocket
With the remnants of Army Group Centre effectively contained, Soviet forces could concentrate on reducing the German forces in Pomerania and eliminating any possible threat to the northern flank of their eventual advance on Berlin. Reinhardt and Hossbach—who had attempted to break out of East Prussia and save their troops—were relieved of command, and the Army Group (redesignated Army Group North) was placed under the command of General Lothar Rendulic. Reinhardt gave up his command with the words "There is nothing more to say". Raus and the staff of the destroyed 3rd Panzer Army were assigned to a new formation. The defending forces, in the meantime, were besieged in three pockets by Chernyakhovsky's armies:
- Some 15 divisions of the 4th Army had become encircled on the shore of the Vistula Lagoon in what became known as the Heiligenbeil Pocket. After bitter fighting, these units were finally overcome on 29 March.
- The remnants of 3rd Panzer Army—placed under 4th Army's command—became isolated in the Siege of Königsberg. The city was finally taken by the Soviets—after massive casualties on both sides—on 9 April. After this point the remaining German forces around the Bight of Danzig were reorganised into Armee Ostpreußen under the overall command of Dietrich von Saucken.
- The third group of German forces—the XXVIII Army Corps or Armeeabteilung Samland under General Hans Gollnick—occupied the Samland peninsula, where the port of Pillau was retained as the last effective evacuation point for the area. The last elements were cleared from Pillau on 25 April in the Zemland offensive operation.
Even after this time, German forces continued to resist on the Vistula Spit, the long sandbar enclosing the Vistula Lagoon, until the end of the war.
- Evacuation of East Prussia
- Battle of Königsberg
- Prussian Nights
- Vistula–Oder Offensive
- Operation Hannibal, the evacuation effort by the Kriegsmarine
- East Pomeranian Offensive, the parallel Soviet offensives in Pomerania
- Strategic operations of the Red Army in World War II
- Glantz (1995), p. 300 - note that this covers all personnel of the 3rd and 2nd Belorussian Fronts, and the elements of 1st Baltic Front involved.
- Glantz (1995), p. 300
- Russian: Восточно-Прусская стратегическая наступательная операция
- Russian: Мемельская операция)
- Beevor, pp.29
- Beevor, pp.27
- Duffy, p.170
- Duffy, p.171
- Duffy, p.172
- Duffy, p.173
- Beevor, pp.49
- Duffy, Christopher. Red Storm on the Reich: The Soviet March on Germany, 1945, Routledge, 1991, ISBN 0-415-22829-8
- Beevor, Antony. Berlin: The Downfall 1945, Penguin Books, 2002, ISBN 0-670-88695-5
- David M. Glantz
- Map of the Soviet Advance into East Prussia & Siege of Königsberg January 13 - May 9, 1945
- Otto Lasch, the commander of Festung Königsberg, wrote a book covering the siege, So fiel Königsberg (English: Thus fell Königsberg)(Motorbuch Verlag, 2002, ISBN 978-3-613-02207-2); originally published in 1958
- Russian authors Aleksandr Solzhenitsyn and Lev Kopelev wrote of their experiences in East Prussia during the offensive; the former in Prussian Nights, the latter in his book To Be Preserved Forever (Russian: Хранить вечно) (English translation by A. Austin, Lippincott, 1977, ISBN 978-0-397-01140-7)
- Alexander Vasilevsky covers his role in the offensive in his memoirs, translated as A Lifelong Cause (translation by J. Riordan, Progress, 1981)
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