| Operation Solstice | |||||||
|---|---|---|---|---|---|---|---|
| Part ofEastern Front of World War II | |||||||
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| Belligerents | |||||||
| Commanders and leaders | |||||||
| Georgy Zhukov | |||||||
| Strength | |||||||
| 7panzer andpanzergrenadier divisions[1] | 1st Belorussian Front[1] | ||||||
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Operation Solstice (German:Unternehmen Sonnenwende), also known asUnternehmen Husarenritt or the Stargard tank battle,[2] was one of the lastGermanarmoured offensive operations on theEastern Front inWorld War II.
It was originally planned as a major offensive but was executed as a limited attack, due to hasty planning by the Germans and it being partially compromised bySoviet military intelligence. Intended to relieve the city ofKüstrin,Sonnenwende was launched on 15 February 1945 fromStargard,Pomerania. By 18 February, the Soviet1st Belorussian Front led byGeorgy Zhukov had defeated the attack, prompting the Germans to call off the offensive. Despite its failure, the operation forced the Soviet High Command (Stavka) to postpone the planned attack on Berlin from February to April, focusing forces on theEast Pomeranian Offensive, launched on 24 February and not concluded until 4 April.
The operation took place in response to theSoviet advance on Berlin in early 1945. Launched January 12, 1945, theSovietVistula-Oder Offensive had ripped open a gap hundreds of kilometers long in German defensive lines, and the Soviets had subsequently pushed from theVistula River to theOder River. As the Soviet advance to the west reached its farthest point, its apex narrowed, leaving long northern and southern flanks into which retreating German formations had moved and along which the Germans were attempting to reestablish a cohesive defensive line.
GeneralHeinz Guderian had originally planned to execute a major offensive against the1st Belorussian Front, cutting off the leading elements ofGeorgy Zhukov's forces east of theOder. The Soviet forces were to be attacked fromStargard (Pomerania) in the north as well as fromGlogau (Silesia) andGuben (Brandenburg) in the south.[3] In order to carry out these plans, he requested that theCourland Pocket be evacuated to make available the divisions trapped there, removed troops fromItaly andNorway, and involvedSepp Dietrich's6th Panzer Army which had been intended for counter-attacks inHungary. In a meeting with Guderian,Hitler insisted that Courland be held and that the army continue with its planned attacks in Hungary; the meeting rapidly degenerated into a heated and farcical argument.[4]
After agreeing on a more limited counter-offensive, Hitler and Guderian then proceeded to have an even more heated argument when Guderian insisted thatWalther Wenck direct the offensive rather thanHeinrich Himmler (the commander ofArmy Group Vistula). Hitler, despite "almost screaming", according to Guderian's account, gave in on this point.[3][5]
In its final form, Operation Solstice consisted of a more limited counter-attack than had been originally planned by the three corps of theEleventh SS Panzer Army, which was being assembled inPomerania, against the spearheads of the 1st Belorussian Front. The German forces would first attack along a fifty-kilometre front around Stargard south-eastwards towardsArnswalde where a small garrison had been encircled with their ultimate objective being the relief ofKüstrin.
TheWehrmacht originally codenamed the operationHusarenritt ("daring charge"), but theSS insisted on the nameSonnenwende.[2]

Zhukov had been made aware of a buildup of German forces opposing his61st and2nd Guards Tank Armies, but did not have information as to the exact timing and nature of the attack.[6] TheStavka of the Supreme Main Command had noted with concern that while the Germans had moved thirteen divisions between the main Soviet forces and Berlin, thirty-three divisions had concentrated in Pomerania, lending credence to the possibility of a German strike from Pomerania into the exposed northern flank of the 1st Belorussian Front.[7]

Over 1200 tanks were allocated to the offensive, but no trains were available to transport them. In addition, due to serious shortages, only three days' ammunition and fuel were immediately available.[2] German forces had also suffered heavy losses during the January combat in East Prussia and Poland. German sources admitted to 198,000 dead and missing for the first two months of 1945 in the region between the Baltic Sea and theCarpathian Mountains.[8]
Soviet sources state that operations by the 1st Ukrainian and Belorussian Fronts during the Vistula-Oder Offensive alone resulted in the deaths of 150,000 German troops.[9] InDeutsche militärische Verluste im Zweiten Weltkrieg, authorRüdiger Overmans estimates overall German military deaths in January 1945 were 451,742[10] and believes up to 2/3 of these losses (some 300,000) occurred in combat on the eastern front.[11] While the Germans were able to make good some of the losses through measures such as the mass mobilization ofVolkssturm, the German forces in the east had clearly suffered both significant quantitative and qualitative losses as a result of the two Soviet major offensives in January 1945.
| Army | Corps | Division | Notes |
|---|---|---|---|
| 11th SS Panzer Army GenF. Steiner[12] | XXXIX Panzer Lt GenK. Decker On German right | Panzer Division Holstein | [3] 29Panzer IV at formation; 17 further Panzer IV sent to unit 9 - 11 Feb 1945 |
| 10th SS Pz Div | [3] 38 Panzer IV, 53Panther tanks on 8 Feb 1945 | ||
| 4th SS PzG Div | [3] | ||
| 28th SS Inf Div | [3] 20Hetzer at start of Feb 1945 | ||
| III SS Panzer Lt GenM. Unrein In German center | 11th SS PzG Div | [3] Elements of 503rd SS Heavy Tank Battalion attached: 12Tiger II on 27 Jan 1945 | |
| 23rd SS PzG Div | [3] 20 Hetzer on/about 10 Feb 1945 | ||
| 27th SS Inf Div | [3] 10 Hetzer at start of Feb 1945 | ||
| Führer-Begleit PzG Div | [3]> 15 Panzer IV, 23Jagdpanzer IV/70(A) on 2 Feb 1945; 30 Panthers sent to unit 8 - 10 Feb 1945 | ||
| Korpsgruppe Munzel[13] Maj GenO. Munzel On German left | Führer-Grenadier PzG Div | [3] 5 Panzer IV, 18 Panther, 13 Jagdpanzer IV/70 on 27 Jan 1945; 10Jagdpanther and 16 Panther sent to unit 15 - 17 Feb 1945 | |
| 163rd Inf Div | [3] At least 9,000 men still en route to Pomerania from Norway via Denmark on 15 Feb 1945 | ||
| 281st Inf Div | [3] | ||
| 104th Antitank Brig | [3] |

While the 1st and2nd Belorussian Fronts were impressively large formations, the Soviet forces had also suffered serious losses in the Vistula-Oder Offensive. At the beginning of February 1945, the strength ofrifle divisions in the 1st BRF averaged around 4,000 troops[14] and those of the 2nd BRF between 3,000 and 4,000.[15] Soviet army strength was further weakened by the need to besiege encircled groups of German soldiers (Festungen – German: "fortresses") inElbing,Posen,Deutsch Krone, andSchneidemühl. Armored strength was also weakened by the recent offensive operations; the 2nd BRF fielded only 297 well-worn tanks early in February 1945.[15] During the period January 12 – February 3, 1945, the 1st BRF suffered 77,342 casualties (7.5% of its assigned strength) while during the East Prussian Offensive of January 13 – February 10, 1945, the 2nd BRF took 159,490 casualties (18% of assigned strength).[16] In the same periods, the 1st Belorussian and Ukrainian Fronts lost 1,267 armored fighting vehicles while the 2nd and 3rd Belorussian Fronts lost 3,525. Gun and mortar losses for the two groups of fronts were 374 and 1,644, respectively.[17] To compound their difficulties, the Soviets faced supply bottlenecks as well as increased German air activity, resulting in increased unit requests for anti-aircraft weapons.[18]
| Front | Army | Subordinate unit | Notes |
|---|---|---|---|
| 1st Belorussian Front (-)[19] MarshalG. Zhukov | 2nd Guards Tank ColGenS. Bogdanov On Soviet left | 9th Gds Tank Corps | |
| 12th Gds Tank Corps | |||
| 1st Mech Corps | |||
| 61st Army LtGenP. Belov On Soviet right | 9th Gds Rifle Corps | ||
| 80th Rifle Corps | |||
| 89th Rifle Corps | |||
| 6th Art Div | |||
| 533rd Antitank Regt | |||
| 47th Army Lt GenF. Perhorovich Moving west from the area ofDeutsch-Krone | 77th Rifle Corps | ||
| 125th Rifle Corps | |||
| 129th Rifle Corps | |||
| 22nd Art Div | |||
| 4th Gds Antitank Brig | |||
| 163rd Antitank Regt | |||
| 3rd Shock Maj GenN. Simoniak Reinforcement; moving from area ofJastrow | 12th Guards Rifle Corps | ||
| 7th Rifle Corps | |||
| 79th Rifle Corps | |||
| 163rd Gds Antitank Regt | |||
| 1st Guards Tank Col GenM. Katukov Reinforcement; moving from area of Frankfurt an der Oder | 8th Gds Mech Corps | ||
| 11th Gds Tank Corps | |||
| 41st Gds Antitank Brig |
Not all of the German units, which had to be reinforced across the bridges atStettin were ready on the planned start date of February 15. Nevertheless, a part of the central corps, theSS Division Nordland, attacked towards Arnswalde that day. Initially the offensive was successful; the opposing forces of 61st Army were taken by surprise and the German spearhead reached the besieged outpost of Arnswalde and relieved its garrison.[3]
A general attack opened the following day.[3] The central corridor to Arnswalde was widened by theIII SS Panzer Corps, pushing part of the Soviet front eight to twelve kilometers back.[20] However, the attack by theXXXIX Panzer Corps was unable to reach the Plöne Lake due to resistance by the Soviet 2nd Guards Tank Army,[13] stalling some 70 kilometers from Küstrin after pushing the Soviets out ofSallenthin andMuscherin, reoccupying some land on the eastern shore ofLake Madü,[21] and recapturingPyritz.[22]Gruppe Munzel pushed some four kilometers toLiebenow, while the III SS Panzer Corps advanced about a kilometer toReetz. Numbers of Soviet tanks and antitank guns were destroyed by GermanTiger II heavy tanks, but the German heavy tanks also took losses. In general, German progress was hindered because of strong Soviet resistance.[3]On February 17, General Wenck, commander of the offensive, was seriously injured in a car accident. While being driven back from a briefing inBerlin, he took over driving from his driver (who had been on duty and awake for 48 hours) and then himself fell asleep at the wheel.[3] He was replaced byHans Krebs, but command initiative had already been lost.[3][23] Later that day, Zhukov threw the 3rd Shock Army, which had redeployed from the area ofJastrow, into a counter-attack and the German offensive stalled.

Army Group Vistula haltedSonnenwende on February 18.[3] On February 19, Zhukov initiated a counter-offensive aimed at the capture of Stettin using the 61st and the 2nd Guards Tank Armies as well as the 7th Guards Cavalry Corps. However, it stalled in the heavy street fighting during the re-capture of Arnswalde.[24] There was no immediate German withdrawal, but the German command decided on February 21 to withdraw the headquarters of the XXXIX Panzer Corps as well as theFührer-Grenadier,Führer-Begleit,Holstein, and 10th SS Panzer Divisions westward behind Army Group Center, practically ensuring that eastern Pomerania would fall to the Soviets.[13] Zhukov's commitment of the 70th Army into an attack on February 23 spurred a retreat with the German forces losing or abandoning many tanks. On February 24,Marshal Rokossovsky's 2nd Belorussian Front renewed the offensive into Pomerania, opening a 60-kilometer (37 mi) wide gap in German lines west ofGrudziądz and moving almost fifty kilometers (31 miles) forward, further reducing the cohesion of German defenses.[25]
Despite the initial gains, the operation was a complete failure. However, the operation convinced the Soviets to postpone their attack on Berlin while Pomerania was cleared in theEast Pomeranian Offensive.[26]