Siege of Warsaw (1939)
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The 1939 Battle of Warsaw was fought between the Polish "Warsaw Army" (Armia Warszawa) garrisoned and entrenched in the capital of Poland (Warsaw) and the German Army. It started with a huge aerial bombardments by the Luftwaffe starting on September 1, 1939.
Land fighting started on September 8, when the first German armoured units reached the Wola area and south-western suburbs of the city. Despite German radio broadcast claiming to having captured Warsaw, the attack was stopped and soon afterwards Warsaw got under siege. The siege lasted until September 28, when the Polish garrison under Gen. Walerian Czuma capitulated. The following day approximately 100 000 Polish soldiers left the city and were taken POW. On October 1 the Wehrmacht entered Warsaw, which started a period of German occupation that lasted until the Warsaw Uprising and later until January 17, 1945.
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History
Air Defence
From the very first hours of World War II, Warsaw, the capital of Poland, was a target of an aerial bombardment campaign by the German Luftwaffe. Apart from the military facilities such as infantry barracks and the Okęcie airport and aircraft factory, the German pilots also targeted civilian facilities such as water works, hospitals, market places and schools. In addition, civilians were strafed from the air with machine gun fire in what became known as a terror bombing campaign.
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The Anti-Air defence of the city was divided onto active and passive parts. The former was composed mostly of units of the Pursuit Brigade (Brygada Pościgowa) under colonel Stefan Pawlikowski, and anti-air artillery and anti-air machine guns detachments under colonel Kazimierz Baran. The Pursuit Brigade was equipped with 54 fighter aircraft, mostly the PZL P.7 and PZL P.11 types. The AA artillery had 86 pieces of anti-air artillery, as well as an unknown number of anti-air machine guns. The latter was composed mostly of fire-fighter brigades and volunteers and was supervised by colonel Tadeusz Bogdanowicz and Julian Kulski, the deputy president of Warsaw.
Initially the air defence of Warsaw was fairly successful. By September 6, 1939, the Pursuit Brigade had managed to shoot down 43 enemy aeroplanes, while artillery had shot down a similar number of enemy bombers. In addition, there were also 9 unconfirmed victories and 20 damaged planes. However, the brigade also suffered losses, and by September 7 it had lost 38 machines, or approximately 70% of its initial strength.
The AA defence started to crumble when on September 5 by order of the military authorities 11 AA batteries were withdrawn from Warsaw towards Lublin, Brześć and Lwów. Also, as the war progressed, the German high command redirected more bombers to attack the city. At the peak of the initial bombing campaign on September 10, there were more than 70 German bombers above Warsaw. During that day, nick-named "Bloody Sunday", there were 17 consecutive bombing raids. It is to be noted that the German pilots failed to destroy the most important targets of military value in Warsaw - the bridges over Vistula.
Eve of the Battle
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On September 3 the forces of German 4th Panzer Division under major general Georg Hans Reinhardt managed to break through positions of the Polish Łódź Army near Częstochowa and started their march towards Vistula and Warsaw. The same day Polish Commander in Chief, Marshal of Poland Edward Śmigły-Rydz ordered the creation of an improvised Command of the Defence of Warsaw (Dowództwo Obrony Warszawy). General Walerian Czuma, the head of the Border Guards (Straż Graniczna), became its commander and colonel Tadeusz Tomaszewski its chief of staff.
Initially the forces under command of gen. Czuma were very limited. Most of the city authorities withdrew together with a large part of the police forces, fire fighters and military garrison. Warsaw was left with only 4 battalions of infantry and one battery of artillery. Also, the spokesman of the garrison of Warsaw issued a communique in which he ordered all young men to leave Warsaw. To coordinate civilian efforts and counter the panic that started in Warsaw, general Czuma appointed the president of Warsaw Stefan Starzyński as the Civilian Commissar of Warsaw. Starzyński started to organize the Civil Guard to replace the evacuated police forces and the fire fighters. He also ordered all members of the city's administration to retake their posts. In his daily radio releases he asked all civilians to construct barricades and anti-tank barriers at the outskirts of Warsaw.
Initial clashes
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The field fortifications were constructed mostly to the west of the city limits. Gradually, the forces of general Czuma were reinforced with fresh recruits, as well as rear troops and routed units withdrawing from the front. In the morning of September 8 the suburbs of Grójec, Radziejowice, Nadarzyn, Raszyn and Piaseczno were captured by the forces of German XVI Panzer Corps. On 17.00 the forces of German 4th Panzer Division attempted an assault on Warsaw's western borough of Ochota. The assault was repulsed and the German forces suffered heavy casualties. The following day the division was reinforced with artillery and motorised infantry, and started yet another assault towards Ochota and Wola. The well-placed Polish AT guns and the barricades erected on main streets managed to repulse this assault as well.
One of the barricades erected at the crossing of Opaczewska and Grójecka streets was defended by 4th company of the 40th "Children of Lwów" Regiment. After the war a monument was build on the spot to commemorate the battle. On several occasions lack of armament had to be made up by ingenuity. One of the streets leading towards the city centre was covered with turpentine from a nearby factory. When the German tanks approached, the liquid was set in flames and the tanks were destroyed without a single shot.
The German forces suffered heavy casualties and had to retreat. The 4th Panzer Division alone lost approximately 80 tanks out of approximately 220 that took part in the assault.
Second Phase
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By then Gen. Czuma gathered an equivalent of 2 infantry divisions under his command. His forces were supported by 64 pieces of artillery and 33 tanks (27 of Vickers E, 7-TP and R-35 and 6 TK-3 and TKS tankettes). On September 8 Marshal of Poland Edward Rydz-Śmigły ordered the creation of an improvised Warsaw Army (Armia Warszawa) under General Juliusz Rómmel. The newly-created force was composed of the forces defending Warsaw and Modlin Fortress, as well as all Polish units defending the Narew and Vistula (between Warsaw and Pilica River estuary) river lines.
The same day two Polish armies under general Tadeusz Kutrzeba started an offensive on the left flank of the German forces advancing towards Warsaw. As a result of this offensive that later became known as the Battle of Bzura, German commanders withdrew the 4th Panzer Division and sent it to counter the Polish threat near Kutno. Its positions were replaced by forces of a weakened German 31st Infantry Division. In this sense the desperate attempt to buy time for organisation of defence of Warsaw was a success. The defenders of the city were joined by various units of the routed Prusy Army. In addition, several new units were created in Warsaw out of reserve centres of Warsaw-based 8th Polish Infantry Division and 36th "Academic Legion" Infantry Regiment.
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On September 11 the Polish Commander in Chief ordered that Warsaw was to be defended at all cost. The following day the forces of German 3rd Army (under general Georg von Küchler) broke through Polish lines along the Narew river and started its march southwards to cut Warsaw from the east. It was assaulted by cavalry units under Władysław Anders, but after heavy fights the Polish counter-offensive failed and the forces were withdrawn to the south. Other Polish units fighting under gen. Juliusz Zulauf in the Narew River area were withdrawn as well and reached Warsaw on September 14. They were incorporated as the core of the defence forces of the borough of Praga.
On September 15 the German forces reached Warsaw from the east and the capital of Poland got under siege. Only a strip of land along the Vistula leading towards the Kampinos Forest and Modlin Fortress was still in Polish hands. The defence of Modlin fortress was an important relief to the defenders of Warsaw.
Siege
- For a detailed Order of Battle see below
On September 16 the forces of Gen. Blaskowitz tried to capture Praga on the march, but the assault was repulsed. After heavy fights for the Grochów area the German 23rd Infantry Regiment was annihilated by the Polish defenders of the 21st "Children of Warsaw" Infantry Regiment under colonel (later promoted to general) Stanisław Sosabowski.
After the Battle of Bzura ended, the remnants of Polish Poznań and Pomorze Armies broke through German encirclement and arrived in Warsaw and Modlin. After that the forces of the defenders amounted to approximately 120 000 soldiers. The German forces preparing for an all-out assault numbered some 175 000 soldiers.
As a preparation for the storming, the city was shelled day and night with artillery and aerial bombardment. Among the guns used were heavy railway guns and mortars. Two entire air fleets took part in the air raids against both civilian and military targets. Since September 20 the forces on the eastern bank of the Vistula started attacks on Praga on a daily basis. All were successfully counter-attacked by the Polish forces. On September 24 all German units concentrated around Warsaw were put under command of general Johannes Blaskowitz.
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On September 25 the final preparations commenced and the following day in the early morning the general assault was started on all fronts of surrounded Warsaw. Western parts of the city were attacked by 5 German divisions (10th, 18th, 19th, 31st and 46th) while the eastern part was attacked by 4 divisions (11th, 32nd, 61st and 217th). The attack was supported by approximately 70 batteries of field artillery, 80 batteries of heavy artillery and two entire air fleets (1st and 4th).
The attack was repelled and the German forces had to retreat to their initial positions. The following night the Polish forces managed to successfully counter-attack and destroyed several German outposts, especially tho the Polish positions in boroughs of Mokotów and Praga. On September 27 the German High Command organised yet again all-out assault that was yet again repelled with heavy casualties on both sides.
Capitulation
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The military situation of Warsaw was relatively good. General Czuma managed to gather enough forces and war materiel to successfully defend the city for several weeks more. However, the situation of civilian inhabitants of Warsaw became increasingly tragic. Constant bombardment of civilian facilities, lack of food and medical supplies resulted in heavy casualties among the civilians.
The water works were destroyed by German bombers and all boroughs of Warsaw experienced lack of both potable water and water to extinguish the fires caused by constant bombardment. Also, the strategic situation became very difficult. The Soviet Union's entry into war and lack of support from the Western Allies made further defence of the city pointless.
On September 26 general Tadeusz Kutrzeba, deputy commander of Warsaw, started capitulation talks with the German commander. On September 27, at 12.00 a cease fire agreement was signed and all fighting halted. Soon afterwards Warsaw capitulated. Several units declined to put down their weapons and cease fire, and their commanding officers had to be visited by generals Czuma and Rómmel personally. On September 29 the garrison of Warsaw started to hide or destroy their heavy armament. Some of the hidden war materiel was later used during the Warsaw Uprising. On September 30 the evacuation of Polish forces to German POW camps started and the following day German units entered the city.
Opposing forces
| Division or Brigade | Regiments | Area | |
| "Odcinek Zachód" (Western Warsaw) Porwit | Zbiorcza Brygada Kawalerii Abraham | elements of Podolian, Greater Poland and Pomeranian Cavalry Brigades | |
| 13th Infantry Division Zubosz-Kaliński | Volunteer Workers' Brigade 43rd "Bayonne Legion" Infantry Regiment 44th "American Legion" Infantry Regiment 45th "Kresy Rifles" Infantry Regiment | Żoliborz | |
| 15th Infantry Division Przyjałkowski | 59th "Greater Polish" Infantry Regiment 61st Infantry Regiment 62nd Infantry Regiment elements of 4th, 16th and 26th Inf.Div. | Powązki | |
| 25th Infantry Division Alter | 60th "Greater Polish" Infantry Regiment elements of 14th and 17th Inf.Div. | Wola | |
| "Odcinek Wschód" (Praga) Zulauf | 5th Infantry Division Zulauf | 26th Infantry Regiment | Utrata |
| 20th Infantry Division Liszka-Lawicz (Northern Praga) | 78th Infantry Regiment 79th Infantry Regiment 80th Infantry Regiment | Bródno Pelcowizna Elsnerów | |
| 44th Infantry Division Żongołłowicz (Southern Praga) | |||
| 8th Infantry Division (routed, only one regiment) Wyrwa-Furgalski | 21st "Children of Warsaw" Infantry Regiment Sosabowski | Grochów | |
| 1st "Defenders of Praga" Infantry Regiment (improvised) Milian | Saska Kępa, Gocław | ||
| 2nd "Defenders of Praga" Infantry Regiment (improvised) Kotowski | Grochów |
| Corps | Division or Brigade | Area | ||
| 8th Army (against Western Warsaw) Blaskowitz | X Corps Ulex | 24th Infantry Division Olbricht | ||
| 30th Infantry Division von Briesen | ||||
| XII Corps von Weichs | 10th Infantry Division von Cochenhausen | |||
| 17th Infantry Division Loch | ||||
| SS Leibstandarte "Adolf Hitler" Dietrich. | ||||
| 3rd Army (against Praga) von Küchler | I Corps Petzel | "Kempf" Panzer Division Kempf | ||
| 11th Infantry Division Bock | ||||
| 61st Infantry Division Hänicke | ||||
| II Corps Strauβ | 3rd Infantry Division Lichel | |||
| 32nd Infantry Division Böhme | ||||
| Luftwaffe Göring | 1st Air Fleet Kesselring | |||
| 4th Air Fleet Lohr |
Casualties
The Polish Army lost approximately 6 000 KIA and 16 000 WIA. After the capitulation approximately 5 000 officers and 97 000 soldiers and NCOs were taken into captivity. The civilian population of Warsaw lost 25 800 dead and approximately 50 000 wounded. As an effect of bombardment 12% of buildings were turned into ruins.
German casualties are unknown.