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| German soldiers destroying Polish border checkpoint on 1st
September. Second World War begins. |
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| Polish Defence War of 1939 |
| Conflict |
World War II |
| Date |
1 September - 6 October
1939 |
| Place |
Poland |
| Result |
Decisive German/Soviet victory |
| Combatants |
| Poland |
Germany and allies, Soviet Union |
| Notable Commanders |
| Edward Rydz-Śmigły |
Fedor von Bock (Army Group North)
Gerd von Rundstedt (Army Group South) |
| Strength |
39 divisions, 16 brigades
1 million soldiers
4,300 guns
880 tanks
435 aircraft |
56 divisions, 4 brigades
1,8 million soldiers
10,000 guns
2,800 tanks
3,000 aircraft |
| Casualties |
65 000 killed1
133 700 wounded
694 000 POWs |
16 343 killed
27 280 wounded
320 MIA |
|
| Polish Defence War of 1939 |
| Westerplatte - Krojanty - Mława - Mokra - Gdańsk Bay - Mikołów - Pszczyna - Węgierska Górka - Jordanów - Tuchola Forest - Łódź -
Borowa Góra -
Piotrków - Tomaszów - Różan - Radom - Łomża - Wola Cyrusowa - Hel - Wizna - Gdynia - Iłża - Warsaw - Bzura - Jarosław - Modlin - Kałuszyn - Węgrów - Lwów - Kobryń - Brześć - Kępa Oksywska - Tomaszów
Lubelski - Kampinos Forest - Janów Lubelski, Wereszyca and Hołosko - Krasnystaw - Grodno - Cześniki - Krasnobród - Władypol - Szack - Wytyczno - Parczew - Kock |
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The Polish September Campaign (alternatively referred to as the German plan Fall Weiss) refers to the conquest of Poland by the
armies of Nazi Germany and the Soviet Union and a small contingent of Slovak forces. The campaign
began on 1 September 1939 and ended on
6 October 1939 with Germany and the Soviet Union occupying Poland.
This military operation marks the start of the Second World War within the European theatre. It was one of the first campaigns featuring the use of blitzkrieg tactics.
Polish government and remaining forces evacuated to Romania and later, France and United Kingdom. Polish
territories were completely occupied by Germany and the Soviet Union. Soviet territories were later captured by Germany as well.
Poland managed to create a strong resistance movement and to
contribute military forces to the
Allies through the remainder of World War II.
Names of the conflict
The conflict is known under several names. From the German perspective the war is called the "September Campaign". Polish
historians call it Wojna obronna 1939 ("Defence War of 1939"). Other names include "Polish-German War of 1939" and "Polish
Campaign".
The German operational plan was codenamed by the Wehrmacht as Fall Weiß ("Fall Weiss" or "Case White").
Campaign Details
German aggression
Recent research by the Polish National
Remembrance Institute (IPN) indicates, that after staging a number of false provocations (Operation Himmler), the first regular act of war took
place on 1 September 1939, 04:40 local
time, when Luftwaffe attacked the town of Wieluń. Five minutes later, at 04:45 local time, the old German battleship Schleswig-Holstein
opened fire on the Polish enclave of Westerplatte in Gdańsk by the Baltic Sea. At 08:00 local time, German
troops attacked Poland near the town of Mokra.
Later that day the front was opened along Poland's Western, Southern and Northern borders, while German aircraft started raids on
Polish cities.
Despite some Polish successes in minor border battles, German technical and numerical superiority forced the Polish armies to
withdraw towards Warsaw and Lwów. Westerplatte
garrison capitulated on 7 September. The largest battle during this campaign
(Battle of Bzura) took place near the Bzura river west of Warsaw from 9 September to 18 September - it was the Polish attempt at a counter-attack, which failed after an
initial success. Warsaw, under heavy aerial bombardment from the first hours of the
war, was first attacked on 9 September and was put
under siege from September 13 until its capitulation on 28 September.
The Modlin Fortress north of Warsaw, capitulated on 29 September, after intense 16-days battle.
Polish defenders on the Hel peninsula on the shore of the Baltic Sea held out until 2 October.
The capitulation of the town of Kock near Lublin on 6 October, after a 4-day Battle of
Kock, marked the end of the September Campaign.
Tanks and aircraft (particularly fighter and ground attack
aircraft like the famous Junkers Ju 87 Stuka) played a
major role in the fighting. Bomber aircraft also attacked cities and civilian targets causing huge losses amongst the civilian
population in what became known as terror bombings.
Soviet aggression
From September 17, 1939, the Soviet Red Army invaded the Eastern regions of Poland that had not yet been involved in military operations.
While the Soviet diplomacy claimed that they were 'protecting the Ukrainian
and Belorussian minorities inhabiting Poland in view of Polish imminent
collapse', in fact they were acting in co-operation with Nazi Germany, carrying out their
part of a secret deal (the division of Europe into Nazi and Soviet spheres of influences, as specified in the secret appendix of
the Molotov-Ribbentrop Pact).
Polish border defences forces (Korpus Ochrony
Pogranicza) in the east (about 25 battalions) were unable to defend the border and were ordered by Edward Rydz-Smigly to fall
back and not to engage the Soviets. This however did not prevent some clashes and small battles.
The Soviet invasion was one of the decisive factors that convinced the Polish government that the war in Poland was lost.
Prior to the Soviet attack from the East, the Polish military plan called for long-term defence against Germany in the
southern-eastern part of the Poland (near the Romanian border), while awaiting relief
from an attack on the western border of Germany by the Western Allies. Facing two powerful enemies - Nazi Germany and Soviet
Union - the Polish government decided that it was impossible to carry out the defence on Polish territories and ordered all units
to evacuate Poland and reorganize in France.
Important battles
All campaigns are composed of various battles. Some of the more notable engagements of the September Campaign are:
- Battle of Bzura (September 9 - September 18) - failed Polish
counter-attack, the biggest battle of the campaign
- Battle of Warsaw (September 8 - September 28)
- siege of the Polish capital
- Battle of Tomaszów Lubelski (September 17 - September 20) - second biggest battle of the
campaign
- Battle of Kock (October 2 - October 5) - the last
battle of the campaign
Aftermath
At the end of the September Campaign, Poland was divided between Nazi
Germany, Soviet Union, Lithuania and Slovakia. Nazi Germany annexed parts of Poland, while
the rest was governed by the so-called General Government.
About 65,000 Polish troops were killed and 680,000 were captured by the Germans (420,000) or Soviets (240,000). Up to 120,000
Polish troops withdrew to neutral Romania (through the Romanian Bridgehead) and Hungary and 20,000 to Latvia and Lithuania, with the majority eventually making their way to France or Britain. Most of the Polish Navy succeeded in evacuation to Britain as well.
The invasion of Poland led to the Britain and France declaring war on Germany on September 3, however they did little to affect the outcome of the September Campaign.
This lack of direct help during the September 1939 led many Poles to the believe that they have been betrayed by their Western allies. In the meantime Poland fulfilling her alliance obligations
did not surrender in 1939, but rather set up a government-in-exile (Polish Government in Exile) in France (later in the United Kingdom) connected to the extensive
underground civil and military organisation (Polish Secret State) as
legal successors to their pre-1939 government. During the German occupation, the Poles continued their struggle as one of the
most extremely restive and organised populations under Nazi rule. Until United States and Soviet Union entered the war, Poland
even with its territories occupied had the third biggest army at Western
Allies disposal.
The Polish campaign was important as the first step in Hitler's drive for "living space" for Germans in Eastern Europe, and as
the blitzkrieg decimated urban residential areas, civilians soon became indistinguishable from combatants. The forthcoming Nazi
occupation (General Government, Reichsgau Wartheland) was one of the most brutal episodes of World
War II, resulting in over 6 million Polish deaths (over 20% of country's inhabitants), including the mass murder of 3 million
Polish Jews in extermination
camps like Auschwitz. Soviet occupation, while shorter, also resulted in
millions of deaths, when all who were deemed dangerous to the communist regime
were subject to Sovietization, forced resettlement, imprisonment in
labour camps (the Gulags) or simply murdered, like Polish officers in the Katyn massacre. Soviet atrocities commenced again after the Poland was
'liberated' by Red Army in 1944, with events like the persecutions of Armia Krajowa soldiers and executions of their leaders.
Polish army equipment and tactics
Between 1936 and 1939, Poland invested heavily in industrialization of the Centralny Okręg Przemysłowy, chosen for being reasonably far from both the Soviet and
German frontiers. That heavy spending on military industry pushed much of the spending on actual weapons into 1940-42. Poland has
been preparing for defensive war for many years, however most plans assumed German aggression would not happen before 1942.
Polish military industry development and fortifications were scheduled to be completed in that year, and newer tanks and aircraft
were just entering production or would shortly.
The French loaned Poland 2.6 billion francs over a 5 year period starting in September 1936. That added 12% to the annual
Polish military budget. The Polish defense budget for 1938-39 was 800 million Zloty, of
which:
- Armored force - 13.7 million
- Artillery - 16 million
- Air Force - 46.3 million
- Navy - 21.7 million
- Cavalry - 58 million
To raise funds for the industrial development, Poland was selling much of the modern equipment it produced: for example,
anti-tank guns were sold to Britain, and planes were exported to Greece.
Polish Army
The Polish defence plan was shaped by the politicians' determination to deploy directly at the front. With the most vaulable natural resources (Silesia), industry and
highly populated regions near the western border, Polish policy was centered on protection of those regions, especially as many
politicians were feared that if Poland should retreat from the regions disputed by Germany (like the Gdansk corridor, cause of the famous 'Danzig or War' ultimatum), Britain and
France would sign a peace with Germany, similar to the Munich
Agreement of 1938. On that grounds French advice to Poland to deploy bulk of Polish
forces behind Vistula was disregarded, even through it was supported by some of Polish generals.
The plan to defend the borders contributed vastly to the Polish defeat, as during the September campaign Polish forces were
stretched thin on the very long border, and lacking compact defence lines and good defence positions, often encircled by the
mobile German forces. The Polish army had a fall-back plan, involving retreat to the southeastern voviodships (the Romanian bridgehead plan). The UK and France estimated that Poland
should be able to defend that region for 2-3 months, while Poles estimated they could hold it at for at least 6 months. This
Polish plan was based around the expectation that Western Allies would keep their end of the signed alliance treaty and quickly
start an offensive of their own. However, neither the French nor the British government had made plans to attack Germany while
the Polish campaign was fought. Their plans were based on the experiences of the First World War and they expected to wear down
Germany in the trench-like warfare, eventully forcing Germany to sign a peace treaty and restore Polish independence. The Polish
government, however, was not notified of this strategy and based all of its defence plans on the expectation of a quick relief
action by their Western Allies. Furthermore, the Polish plan for Romanian Bridgehead defence was rendered obsolete by the
unexpected Soviet Union attack. Although the secret appendix of the Molotov-Ribbentrop Pact about the Soviet alliance with Nazi Germany and its policy towards Poland
had been uncovered by the Western Allies' intelligence, it was never shared with Poland.
Germany's forces were not incredibly mobile, but the number of mechanized forces was greater than Poland's. The Germans were
able to successfully exploit the weakness of the Polish forces' thin deployment on the long frontline. Their blitzkrieg doctrine was based on the novel idea of a mechanized spearhead attack, using
mobile units to break through enemy frontlines and then disperse, causing confusion in the rear areas and severring lines of
supply and communication, Follow-on forces could then defeat the confused and cut-off units at the front.
The political decision to defend the border was not the only strategic mistake. Polish pre-war propaganda stated that any German invasion would be easily repelled. Polish defeats in the September
campaign came as a shock to many civilians, who unprepared for such news and with no training for such an event, panicked and
retreated east, spreading chaos, lowering troop morale and making road transportation for Polish troops very difficult. The
propaganda had also some negative consequences on Polish troops themselves, whose communication disrupted by German mobilie units
operating in the rear and civilians blocking roads was further thrown in chaos by the bizarre reports from Polish radio stations
and newspapers, which often reported imaginary victories and other military operations. This led to many cases of Polish troops
being encirled or taking a stand against overwhelming odds, when they thought they were actually counterattacking or would
receive reinforcements from other areas soon.
The Polish army was fairly strong in numbers (~1 million soldiers), but many of them were not mobilised by the 1st September, as Polish government, advised in this by the British and French
governments, constantly hoped that the war could be resolved (at least, for the time being) by diplomatic channels. Less than
half of the Polish armed forces had been mobilized by 1 September, and only one-quarter (600,000) were fully equipped and in
position when hostilities commenced. Thus many soldiers, mobilised after 1st September, failed to reach the designated staging
areas, and, together with normal civilians, sustained significant casualties when public transport (trains, roads filled with
refugees) became targets of the German air force.
Poland possessed numerically inferior armoured
forces. Polish units were dispersed within infantry and unable to effectively engage in any major panzer battles. The Germans
opposing them had 3,000 tanks, organised into independent divisions under blitzkrieg doctrine. In terms of equipment, the Poles had 132 7TP light tanks, which were capable of destroying any German armour, including the Panzer IV, and less then 300 tankettes.
In addition to tanks, Poland successfully used armoured trains
against Germans, who were unprepared to face this kind of combat vehicle. Although the trains proved vulnerable to air attack,
the losses that the Germans incurred against Polish trains convinced them to reintroduce this type of vehicle into their own army
after the September Campaign.
Polish cavalry brigades, contrary to the common myth, were used as a mobile infantry, and were quite successful against German
infantry. They were considered to be elite troops of the Polish army and were much more successful than the Germans anticipated.
However, while Polish cavalry matched German panzers in speed and anti-infantry effectiveness, it could not stand its ground
against the tanks.
Another interesting equipment used with success by Polish forces was the 7.92 mm Karabin przeciwpancerny wz.35 anti-tank rifle. It was quite successful against German light
tanks, although, as with most of the Polish modern equipment, production was just beginning when the war started.
Polish Air Force
The Polish Air Force was at a severe disadvantage against the German Luftwaffe. Although its pilots were highly trained, the Polish Air Force lacked modern fighter aircraft, and the Germans had gross numerical superiority: Poland
had approximately 400 aircraft, including 169 fighters, and Germany had approximately 3,000 aircraft. The development program of
the Polish airforce was slowed in 1926 in the aftermath of Józef Piłsudski's coup d'etat, as Piłsudski considered the airforce to be of less importance than other military
branches.
In 1939, Polish main fighter, the PZL P.11, designed in early-1930s, was
becoming obsolete, the slightly better PZL P.24 were used solely for export and PZL P.50s, which were supposed to have better parameters than German modern fighters, were still on the drawing
board. As the result, the German Messerschmitt Bf 109 and
Bf 110 fighters were faster and better armed, and most
German bombers could also outrun the Polish fighters. On the other hand, P.11 were more maneuvreable, and despite the German
superiority is speed, armament and numbers, P.11s downed a considerable number of German aircraft, including fighters, although
suffering heavy losses as well. The exact numbers are not verified, but some sources claim that at least one German aircraft was
shot down for each P.11 lost (a figure of 107 to 141 German aircraft shot down for the loss of 118 Polish aircraft are most
often).
One of the most interesting units in the Polish arsenal was the twin-engine medium bomber, the PZL.37 Łoś. Before the war it was one of the world's most modern and outstanding bombers.
Smaller than most contemporary medium bombers, it was still able to carry a heavier bomb load than comparable aircraft, including
the famous Vickers Wellington. It was relatively fast and easy
to handle. Thanks to a landing gear with double wheels, it could operate from rough fields or meadows. The only drawback was its
relatively weak defensive armament, consisting of 3 machine guns. Its range was also limited, but the Łoś was not meant
to be a long range bomber. During the September Campaign, they were too few in number to change the outcome, and often lacking
fighter cover, sustained heavy losses.
Few planes of the Polish air Force were destroyed on ground, as most have been deployed to temporary secret airstrips. The
fighter planes were grouped in 15 escadres. 5 of them constituted the Pursuit Brigade, deployed in
Warsaw area. The bombers, grouped in 9 escadres of the Bomber Brigade attacked armoured
columns, suffering heavy losses. 7 reconnaissance and 12 observation escadres, deployed to particular Polish Armies, were
intensively used for reconnaissance. However, the Polish pilots, while highly trained and motivated, faced superior numerical
opponent in superior designs and with much better command structure. German achieved air superiority around day three of the
campaign, although Polish Air Force manged to remain operational for two first weeks of the September capmpaing, after which most
planes were either destroyed in combat or had to been abandoned on ground due to lack of supplies and spare parts, in face of the
rapidly advancing German land troops. Few remaining aircraft were either captured by Germans or withdrawn to Romania and taken
over by this country. A great number of pilots and air crews managed to breakthrough to France through European countries.
Polish Navy
The Polish Navy was a small fleet composed of destroyers and submarines. Most of Polish surface units
followed the Operation
Pekin, left Polish ports on 20th August, evaded German forces and escaped to the North Sea to join with the British Royal Navy. Submarine forces
were realising Operation
Worek, with the goal of engaging and damaging German shipping in the Baltic Sea, but with much less success.
- Warships (in service during September 1939)
- ORP Gryf, large minelayer, sunk
by German bombers near Hel
- ORP Błyskawica, a destroyer, escaped to United Kingdom
- ORP Wicher, a destroyer, sunk by
German bombers near Hel
- ORP Grom, a destroyer, escaped to United Kingdom
- ORP Burza, a destroyer, escaped to United Kingdom
- ORP Orzeł, a submarine, escaped to United Kingdom
- ORP Sęp, a submarine, interned in
Sweden
- ORP Wilk, a submarine, escaped to
United Kingdom
- ORP Ryś, a submarine, interned in
Sweden
- ORP Żbik, a submarine, interned
in Sweden
- ORP Mewa, Jaskółka, Rybitwa, Czajka, Żuraw, Czapla - 6 small minesweepers. ORP Mewa, Jaskółka and Czapla were sunk by German bombers near hel and Oksywie, others have been captured and salvaged by
Germans.
- ORP Mazur, old torpedo destroyer from First World War, sunk by German bombers near Hel
- two gunboats
In addition, many ships of Polish Merchant Navy have joined the British merchant fleet and took part in various convoys during the war.
The myths
There are some common myths about the Polish Campaign, comparable to the urban legends.
Although Poland had 11 cavalry brigades and its doctrine emphasized cavalry units as elites, other armies
of that time (including Germany) also fielded and extensively used cavalry units. Polish cavalry never charged on German tanks
nor entrenched machine guns but usually acted as mobile infantry
units and executed cavalry charges only in rare situations.
Secondly, the Polish Air Forces, though numerically inferior
and lacking modern fighters, were not destroyed on airfields and remained active in the first two weeks of the campaign, causing
some harm to the Germans. Skilled Polish pilots who escaped to the United Kingdom after
the German occupation were employed by the RAF during the Battle of Britain. Fighting from British bases, Polish pilots were also,
on average, the most successful in shooting down German planes.
It should be noted that the September campaign lasted only about one week less than the Battle of France in 1940.
German equipment and tactics
To do.
Order of battle
Poland:
Invading forces:
Quotes
- ...in general the bravery and heroism of the Polish Army merits great respect - Generalfeldmarschall Gerd von Rundstedt, commander of Army Group South
Notes
- Various sources contradict each other so the figures quoted above should only be taken as a rough indication of losses. The
most common range brackets for casualties are: Polish casualties - 65,000 to 66,300; German casualties - 8082 to 16,343, with
missing in action from 5029 to 320. The discrepancy in German causalties can be attributed to the missing numbers and the fact
that some German statistics still listed some soldiers as missing decades after the war. Today the most common and accepted
number for German casualties is 16,343. Soviet losses are estimated at 737 killed and 1859 wounded. The often cited figure of
420,000 Polish POW is only for those captured by the Germans, as Soviets took about 240,000 Polish POW by themselves, so the
total number of Polish POW is about 660,000-690,000. the Equipment losses is given as 89 German tanks and approximately 1000
other vehicles to 132 Polish tanks and 300 other vehicles, 107-141 German planes to 327 Polish planes (118 fighters), 2 German
destroyers and 2 minelayers to 1 Polish destroyer, 1 minelayer and several support craft. Soviets lost approximately 42 tanks in
combat, hundreds more suffered technical failures.
External links
References
- Steven Zaloga, The Polish
Army 1939-1945, Osprey Publishing, 1982, ISBN 0850454174
- Steve Zaloga, Howard
Gerrard, Poland 1939: The Birth of Blitzkrieg, Osprey Publishing, 2002, ISBN 1841764086
- Peter Charles
Smith, Stuka Spearhead: The Lightning War from Poland to Dunkirk 1939-1940, Greenhill Books, 1998, ISBN 1853673293
- Marek Jan
Chodakiewicz, Between Nazis and Soviets: Occupation Politics in Poland, 1939-1947, Lexington Books, 2004, ISBN 0739104845
- Robert M Kennedy, The
German campaign in Poland (1939), Zenger Pub. Co, 1980, ISBN 0892010649
- Anita J.
Prazmowska, Britain and Poland 1939-1943 : The Betrayed Ally, Cambridge University Press, 1995, ISBN 0521483859
- Diemut Majer, Peter Thomas Hill, Edward Vance Humphrey,
Brian Levin, Non-Germans under the
Third Reich: The Nazi Judicial and Administrative System in Germany and Occupied Eastern Europe, with Special Regard to Occupied
Poland, 1939-1945, Johns Hopkins University Press, 2003, ISBN 0801864933
- Richard C. Lukas,
Forgotten Holocaust: The Poles Under German Occupation, 1939-1944, Hippocrene Books, Inc, 2001, ISBN 0781809010,
- Alexander B.
Rossino, Hitler Strikes Poland: Blitzkrieg, Ideology and Atrocity, University Press of Kansas, 2003, ISBN 0700612343
- Jan T. Gross, Revolution from
Abroad: The Soviet Conquest of Poland's Western Ukraine and Western Belorussia, Princeton University Press, 2002, ISBN 0691096031
- Keith Sword, The Soviet Takeover
of the Polish Eastern Provinces, 1939-41, Palgrave Macmillan, 1991, ISBN 0312055706
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