The Guderian Plan is a plan developed in the autumn of 1944 for the restoration and expansion of the eastern fortifications of the German Reich. The plan was named after its initiator General Heinz Guderian.
General Heinz Guderian, in his capacity as Chief of the General Staff of the Army, had a plan drawn up in the fall of 1944 for the possible expansion of the German East fortifications. This happened, as Soviet troops had advanced in the course of Operation Bagration in the summer of 1944 to the Vistula and to the frontier in East Prussia. The plan Guderian made together with the general of the pioneers Alfred Jacob. It included the rearmament of the Festungsfront Oder-Warthe-Bogen (East Wall) the construction of defensive lines along the Oder, Vistula and nets, the construction of the Pomeranian wall and the Samland fortifications including the fortification of the city of Königsberg. In addition, fortifications in Glogau, Breslau, Posen and Danzig as well as on the Hela peninsula and the Öxhöfter Kämpe near Gotenhafen were set up or repaired. For the execution of these buildings, the staff of the General Staff was re-established and placed under the command of Lieutenant-Colonel Thilo. The expansion of the fortresses and ramparts was carried out by the mass deployment of volunteers and forced civilians and the Hitler Youth.
To manning these fortresses, 100 Fortress Infantry battalions and 100 fortress batteries were set up. In the course of the Ardennes offensive, however, 80% of these troops were transferred to the Western Front on Hitler's orders, so that during the beginning of the Soviet offensive in January 1945, the fortresses were manned with only about 20% of the planned personnel. For the reinforcement of the fortresses, thousands of functional booty guns were still stored in German army-producing offices. However, this armament was also deducted on the orders of Colonel General Alfred Jodl to the Western Front, so that only a few guns larger caliber could be installed in the eastern fortifications. In large numbers, only anti-aircraft guns were installed in the improvised positions. The stocking of the fortresses was set up for a period of three months.
Looking back on the effects of these fortresses, it can be seen that these have slowed down the advance of the Red Army, although they could not stop it. The fortresses of the Oder-Warthebogens fell very fast, while other fortresses like Königsberg, Danzig, Glogau or Breslau (until the capitulation in May 1945) lasted longer. The strongholds of Glogau (siege of Glogau) and Breslau (siege of Breslau) withstood the attacks of the Red Army. It remains to be noted that the fortifications made possible by the slowing of the Soviet advance many refugees, especially from Silesia, Pomerania, West and East Prussia. This includes the keeping open of land connections and seaports (Operation Hannibal) for a certain period of time.
Heinz Wilhelm Guderian was a German general during World War II who, after the war, became a successful memoirist. An early pioneer and advocate of the "blitzkrieg" approach, he played a central role in the development of the panzer division concept. In 1936, he became the Inspector of Motorized Troops.
Operation Spring Awakening was the last major German offensive of World War II. The operation was referred to in Germany as the Plattensee Offensive and in the Soviet Union as the Balaton Defensive Operation. It took place in Western Hungary on the Eastern Front and lasted from 6 March until 15 March, 1945. The objective was to secure the last significant oil reserves still available to the European Axis powers and prevent the Red Army from advancing towards Vienna. The Germans failed in their objectives.
Army Group A was the name of three distinct army groups of the Heer, the ground forces of the Wehrmacht, during World War II.
In the German language, Festung Warschau is the term used to refer to a fortified and well-defended Warsaw. In the 20th century, the term was in use on three occasions during World War I and World War II. It was used when the Germans threw back the Russian advance in 1914, where Warsaw came within distance of the fighting in October. The term resurfaced during the September 1939 German invasion of Poland. Later in the second war, the term resurfaced between September 1944 and January 1945, when the retreating Germans tried to establish a defense in the city against the advancing Soviet Union.
The evacuation of East Prussia was the movement of German civilian population and military personnel from East Prussia between 20 January and March 1945, that was initially organized and carried out by state authorities but quickly turned into a chaotic flight from the Red Army.
The 2nd Belorussian Front, was a major formation of the Soviet Army during World War II, being equivalent to a Western army group.
The 1st Belorussian Front, known without a numeral as the Belorussian Front between October 1943 and February 1944, was a major formation of the Red Army during World War II, being equivalent to a Western army group. Alongside the 1st Ukrainian Front, it was the largest and most powerful among all Soviet fronts, as their main effort was to capture Berlin, the capital of Nazi Germany.
Dietrich Friedrich Eduard Kasimir von Saucken was a German general during World War II who commanded the 2nd Army and the Army East Prussia. Turning down an offer to escape by air, he surrendered to the Red Army in May 1945. Saucken was the last officer to be awarded the Knight's Cross of the Iron Cross with Oak Leaves, Swords and Diamonds of Nazi Germany.
The Vistula–Oder offensive was a Red Army operation on the Eastern Front in the European theatre of World War II in January 1945. The army made a major advance into German-held territory, capturing Kraków, Warsaw and Poznań. The Red Army had built up their strength around a number of key bridgeheads, with two fronts commanded by Marshal Georgy Zhukov and Marshal Ivan Konev. Against them, the German Army Group A, led by Colonel-General Josef Harpe, was outnumbered five to one. Within days, German commandants evacuated the concentration camps, sending the prisoners on their death marches to the west, where ethnic Germans also started fleeing. In a little over two weeks, the Red Army had advanced 480 kilometres (300 mi) from the Vistula to the Oder, only 69 kilometres (43 mi) from Berlin, which was undefended. However, Zhukov called a halt, owing to continued German resistance on his northern flank (Pomerania), and the advance on Berlin had to be delayed until April.
Army Group Vistula was an Army Group of the Wehrmacht, formed on 24 January 1945. It lasted for 105 days, having been put together from elements of Army Group A, Army Group Centre, and a variety of new or ad hoc formations. It was formed to protect Berlin from the Soviet armies advancing from the Vistula River.
The Battle of Königsberg, also known as the Königsberg offensive, was one of the last operations of the East Prussian offensive during World War II. In four days of urban warfare, Soviet forces of the 1st Baltic Front and the 3rd Belorussian Front captured the city of Königsberg, present day Kaliningrad, Russia. The siege started in late January 1945 when the Soviets initially surrounded the city. Heavy fighting took place for control of overland connection between Königsberg and the port of Pillau, however by March 1945 Königsberg was hundreds of kilometres behind the main front line in the eastern front. The battle ended when the German garrison surrendered to the Soviets on 9 April after a three-day assault made their position untenable.
The East Prussian offensive was a strategic offensive by the Soviet Red Army against the German Wehrmacht on the Eastern Front. 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 siege of Breslau, also known as the Battle of Breslau, was a three-month-long siege of the city of Breslau in Lower Silesia, Germany, lasting to the end of World War II in Europe. From 13 February 1945 to 6 May 1945, German troops in Breslau were besieged by the Soviet forces which encircled the city as part of the Lower Silesian Offensive Operation. The German garrison's surrender on 6 May was followed by the surrender of all German forces two days after the battle.
The German evacuation from Central and Eastern Europe ahead of the Soviet Red Army advance during the Second World War was delayed until the last moment. Plans to evacuate people to present-day Germany from the territories controlled by Nazi Germany in Central and Eastern Europe, including from the former eastern territories of Germany as well as occupied territories, were prepared by the German authorities only when the defeat was inevitable, which resulted in utter chaos. The evacuation in most of the Nazi-occupied areas began in January 1945, when the Red Army was already rapidly advancing westward.
The East Pomeranian strategic offensive operation was an offensive by the Soviet Red Army against the German Wehrmacht on the Eastern Front. It took place in Pomerania and West Prussia from 10 February – 4 April 1945.
The Battle of Poznań during World War II in 1945 was an assault by the Soviet Union's Red Army that had as its objective the elimination of the Nazi German garrison in the stronghold city of Poznań (Posen) in occupied Poland. The defeat of the German garrison required a month-long reduction of fortified positions, urban combat, and a final assault on the city's citadel by the Red Army, complete with medieval touches.
Operation Solstice, also known as Unternehmen Husarenritt or the Stargard tank battle, was one of the last German armoured offensive operations on the Eastern Front in World War II.
The Gumbinnen Operation, also known as the Goldap Operation, was a Soviet offensive on the Eastern Front late in 1944, in which forces of the 3rd Belorussian Front attempted to penetrate the borders of East Prussia.
The XIX Army Corps was an armored corps of the German Wehrmacht between 1 July 1939 and 16 November 1940, when the unit was renamed Panzer Group 2 and later 2nd Panzer Army. It took part in the Invasion of Poland and the Battle of France.