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Soviet invasion of Poland (1939)

 

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Soviet invasion of Poland (1939)



 
 
The 1939 Soviet invasion of Poland was a military operation that started without a formal declaration of war on 17 September 1939, during the early stages of World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
, sixteen days after the beginning of the Nazi German
Nazi Germany

Nazi Germany and the Third Reich are the colloquial English names for Germany under the regime of Adolf Hitler and the Nazi Party , which established a Totalitarianism dictatorship that existed from 1933 to 1945....
 attack on Poland
Invasion of Poland (1939)

The Invasion of Poland in 1939 precipitated World War II. It was carried out by Nazi Germany, the Soviet Union, and a small Slovak invasion of Poland contingent....
. It ended in a decisive victory for the Soviet Union
Soviet Union

The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
's Red Army
Red Army

The Red Army was the armed force first organized by the Bolsheviks during the Russian Civil War in 1918 and, in 1922, became the army of the Soviet Union....
.

In early 1939, the Soviet Union tried to form an alliance against Nazi Germany with the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, France
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
, Poland
Second Polish Republic

The Second Polish Republic, Second Commonwealth of Poland or interwar Poland is the Republic of Poland between World War I and World War II....
, and Romania
Kingdom of Romania

The Kingdom of Roumania was the old Romanian state based on a form of parliamentary monarchy between March 13, 1881 and December 30, 1947, specified by the First , and respectively, the Second Constitution of Roumania....
; but several difficulties arose, including the refusal of Poland and Romania to allow Soviet troops transit rights through their territories as part of collective security
Collective security

Collective security can be understood as a security arrangement in which all states cooperate collectively to provide security for all by the actions of all against any states within the groups which might challenge the existing order by using force....
.






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The 1939 Soviet invasion of Poland was a military operation that started without a formal declaration of war on 17 September 1939, during the early stages of World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
, sixteen days after the beginning of the Nazi German
Nazi Germany

Nazi Germany and the Third Reich are the colloquial English names for Germany under the regime of Adolf Hitler and the Nazi Party , which established a Totalitarianism dictatorship that existed from 1933 to 1945....
 attack on Poland
Invasion of Poland (1939)

The Invasion of Poland in 1939 precipitated World War II. It was carried out by Nazi Germany, the Soviet Union, and a small Slovak invasion of Poland contingent....
. It ended in a decisive victory for the Soviet Union
Soviet Union

The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
's Red Army
Red Army

The Red Army was the armed force first organized by the Bolsheviks during the Russian Civil War in 1918 and, in 1922, became the army of the Soviet Union....
.

In early 1939, the Soviet Union tried to form an alliance against Nazi Germany with the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, France
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
, Poland
Second Polish Republic

The Second Polish Republic, Second Commonwealth of Poland or interwar Poland is the Republic of Poland between World War I and World War II....
, and Romania
Kingdom of Romania

The Kingdom of Roumania was the old Romanian state based on a form of parliamentary monarchy between March 13, 1881 and December 30, 1947, specified by the First , and respectively, the Second Constitution of Roumania....
; but several difficulties arose, including the refusal of Poland and Romania to allow Soviet troops transit rights through their territories as part of collective security
Collective security

Collective security can be understood as a security arrangement in which all states cooperate collectively to provide security for all by the actions of all against any states within the groups which might challenge the existing order by using force....
. With the failure of the negotiations, the Soviets shifted from their anti-German stance and on 23 August 1939 signed the Molotov-Ribbentrop Pact
Molotov-Ribbentrop Pact

The Molotov?Ribbentrop Pact, colloquially named after Soviet Union foreign minister Vyacheslav Molotov and Nazi Germany foreign minister Joachim von Ribbentrop, was an agreement officially titled the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics and signed in Moscow in the early hours of August 24...
 with Nazi Germany. As a result, on 1 September, the Germans invaded Poland from the west; and on 17 September, the Red Army invaded Poland from the east. The Soviet government announced that it was acting to protect the Ukrainians
Ukrainians

Ukrainians are an East Slavs ethnic group primarily living in Ukraine, or more broadly?citizens of Ukraine . Some 200 years ago and times prior to that, Ukrainians were usually referred to and known as Rusyny ....
 and Belarusians
Belarusians

Belarusians or Belorussians are an East Slavs ethnic group who populate the majority of the Belarus and form minorities in neighboring Poland , Russia, Lithuania and Ukraine....
 who lived in the eastern part of Poland
Kresy

The term Kresy, meaning "Outskirts" or "Borderlands", was first used to define the Poland eastern frontier. The term referred to the eastern frontiers of the Polish-Lithuanian Commonwealth....
, because the Polish state had collapsed in the face of the German attack and could no longer guarantee the security of its own citizens.

The Red Army quickly achieved its targets, vastly outnumbering Polish resistance. About 230,000 Polish soldiers or more (452 500) were taken prisoners of war
Prisoner of war

A prisoner of war is a combatant who is held in continuing custody by an enemy power during or immediately after an armed conflict....
. The Soviet government annexed the territory newly under its control and in November declared that the 13.5 million Polish citizens who lived there were now Soviet citizens. The Soviets quelled opposition by executions and by arresting thousands. They sent hundreds of thousands (estimates vary) to Siberia
Siberia

Siberia , is the name given to the vast region constituting almost all of North Asia and for the most part currently serving as the massive central and eastern portion of the Russian Federation, having served in the same capacity previously for the Soviet Union from its beginning, and the Russian Empire beginning in the 16th century....
 and other remote parts of the USSR in four major waves of deportation
Deportation

Deportation generally means the expulsion of a person or group of people from a place or country. The expulsion of natives is also called banishment, exile, or penal transportation....
s between 1939 and 1941.

The Soviet invasion, which the Politburo
Politburo

Politburo, short for Political Bureau, Russian language Politicheskoye Buro, is the executive organization for a number of political parties, most notably those of Communist Party....
 called "the liberation campaign", led to the incorporation of millions of Poles, western Ukrainians and western Belarusians into the Soviet Ukrainian
Ukrainian SSR

The Ukrainian Soviet Socialist Republic or the Ukrainian SSR was one of the founders of the USSR and a republic that made up the former Soviet Union from its formation in 1922 to its abolishment in 1991....
 and Byelorussian
Byelorussian SSR

The Byelorussian Soviet Socialist Republic was one of Republics of the Soviet Union of the Soviet Union. It was one of the four original founding members of the Soviet Union in 1922, together with the Ukrainian Soviet Socialist Republic, the Transcaucasian SFSR and the Russian Soviet Federative Socialist Republic....
 republics
Soviet Republic

Soviet republic, a republic ruled by soviet , may refer to one of the following:*Bolshevik Russia and the Russian SFSR after the Russian Revolution of 1917 and during the Russian Civil War....
. During the existence of the People's Republic of Poland
People's Republic of Poland

The People's Republic of Poland or Polish People's Republic was the official name of Poland from 1952 to 1989 inclusively.Although the People's Republic of Poland was a sovereignty state as defined by international law, its leaders were at the very least approved by Soviet Union leaders....
, the invasion was a taboo
Taboo

A taboo is a strong social prohibition against words, objects, actions, or discussions that are considered undesirable or offensive by a group, culture, society, or community....
 subject, almost omitted from the official history in order to preserve the illusion of "eternal friendship" between members of the Eastern Bloc
Eastern bloc

During the Cold War, the terms Eastern Bloc, Communist Bloc or Soviet Bloc were used to refer to European annexed or expanded Soviet Socialist Republics of the USSR and Satellite state states, including members of the Soviet-dominated organizations Comecon and the Warsaw Pact....
.

Prelude

Rzeczpospolita 1939 Polish Divisions
In the late 1930s, the Soviet Union tried to form an anti-German alliance with the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, France
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
 and Poland
Second Polish Republic

The Second Polish Republic, Second Commonwealth of Poland or interwar Poland is the Republic of Poland between World War I and World War II....
. The negotiations, however, proved difficult. The Soviets insisted on a sphere of influence stretching from Finland to Romania and asked for military support not only against anyone who attacked them directly but against anyone who attacked the countries in their proposed sphere of influence. From the beginning of the negotiations with France and Britain it was clear that Soviet Union demanded the right to occupy the Baltic States (Latvia
Latvia

Latvia The Latvians are a Baltic peoples culturally related to the Estonians and Lithuanians, with the Latvian language having many similarities with Lithuanian language, but not with the Estonian language....
, Estonia
Estonia

Estonia , officially the Republic of Estonia is a country in the Baltic region of Northern Europe. It is bordered to the north by Finland across the Gulf of Finland, to the west by Sweden across the Baltic Sea, to the south by Latvia , and to the east by the Russia ....
 and Lithuania
Lithuania

Lithuania , officially the Republic of Lithuania is a country in Northern Europe, the southernmost of the three Baltic states. Situated along the southeastern shore of the Baltic Sea, it shares borders with Latvia to the north, Belarus to the southeast, Poland, and the Russian exclave of Kaliningrad Oblast to the southwest....
). Finland
Finland

Finland , officially the Republic of Finland , is a Nordic countries situated in the Fennoscandian region of northern Europe. It borders Sweden on the west, Russia on the east, and Norway on the north, while Estonia lies to its south across the Gulf of Finland....
 was to be included in the Soviet sphere of influence as well and the Soviets finally also demanded the right to enter Poland, Romania
Kingdom of Romania

The Kingdom of Roumania was the old Romanian state based on a form of parliamentary monarchy between March 13, 1881 and December 30, 1947, specified by the First , and respectively, the Second Constitution of Roumania....
 and the Baltic States whenever they felt their security was threatened. The governments of those countries rejected the proposal because, as Polish foreign minister Józef Beck
Józef Beck

was a Second Republic of Poland statesman, diplomat, military officer, and close associate of J?zef Pilsudski....
 pointed out, they feared that once the Red Army entered their territories, it might never leave. The Soviets did not trust the British and French to honour collective security
Collective security

Collective security can be understood as a security arrangement in which all states cooperate collectively to provide security for all by the actions of all against any states within the groups which might challenge the existing order by using force....
, since they had failed to assist Spain
Spanish Civil War

The Spanish Civil War was a major conflict in Spain that started after an attempted coup d'?tat by a group of Spanish Army generals, supported by the conservative Spanish Confederation of the Autonomous Right , Carlist groups and the fascistic Falange, against the government of the Second Spanish Republic, then under the leadership of pr...
 against the Fascists
Falange

Falange Espa?ola de las J.O.N.S. is the name assigned to several political movements and parties dating from the 1930s, most particularly the original fascist movement in Spain....
 or protect Czechoslovakia from the Nazis. They also suspected that the Western Allies
Western Allies

The Western Allies were the democracy and their colony peoples, within the broader coalition of Allies of World War II during World War II. The term is generally understood to refer to the countries of the United Kingdom Commonwealth of Nations and part of the military of Poland , exiled forces from Occupied Europe , the United States, , Fran...
 would prefer the Soviet Union to fight Germany by itself, while they watched from the sidelines. In view of these concerns, the Soviet Union abandoned the talks and turned instead to negotiations with Germany.

On 23 August 1939, the Soviet Union signed the Molotov-Ribbentrop Pact
Molotov-Ribbentrop Pact

The Molotov?Ribbentrop Pact, colloquially named after Soviet Union foreign minister Vyacheslav Molotov and Nazi Germany foreign minister Joachim von Ribbentrop, was an agreement officially titled the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics and signed in Moscow in the early hours of August 24...
 with Nazi Germany, taking the allies by surprise. The two governments announced the agreement merely as a non-aggression treaty
Non-aggression pact

A non-aggression pact is an international treaty between two or more states, agreeing to avoid war or armed conflict between them and resolve their disputes through peaceful negotiations....
. As a secret appendix
Appendix

Appendix, from the Latin word of the same name, may refer to an Index / Bibliography.* In book design, an appendix is a reference section at the end of a book ...
 reveals, however, they had actually agreed to partition Poland between themselves and divide Eastern Europe
Eastern Europe

Eastern Europe is a term that applies to the geopolitical region encompassing the easternmost part of the Europe. Throughout history and to a lesser extent today, parts of Eastern Europe has been distinguishable from Western Europe and other regions due to cultural, religious, economic, and historical reasons, even though there i...
 into Soviet and German spheres of influence
Sphere of influence

A sphere of influence is an area or region over which an organization or state exercises cultural, economic, military or political domination....
. The Molotov-Ribbentrop Pact, which has been described as a license for war, was a key factor in Hitler’s decision to invade Poland.

The treaty provided the Soviets with extra defensive space in the west. It also offered them a chance to regain territories ceded to Poland twenty years earlier
Battle of Warsaw (1920)

The Battle of Warsaw was the decisive battle of the Polish?Soviet War, which began soon after the end of World War I in 1918 and lasted until the Peace of Riga ....
 and to unite the eastern and western Ukrainian and Belarusian peoples under a Soviet government, for the first time in the same state. Soviet leader Joseph Stalin
Joseph Stalin

Joseph Stalin was the General Secretary of the Communist Party of the Soviet Union's Central Committee of the Communist Party of the Soviet Union from 1922 until his death in 1953....
 saw advantages in a war in western Europe, which might weaken his ideological enemies and open up new regions to the advance of communism
Communism

Communism is a socioeconomic structure and political ideology that promotes the establishment of an egalitarianism, classlessness, stateless society based on common ownership and control of the means of production and property in general....
.

Soon after the Germans invaded
Invasion of Poland (1939)

The Invasion of Poland in 1939 precipitated World War II. It was carried out by Nazi Germany, the Soviet Union, and a small Slovak invasion of Poland contingent....
 Poland on 1 September 1939, the Nazi leaders began urging the Soviets to play their agreed part and attack Poland from the east. The German ambassador to Moscow
Moscow

Moscow is the capital and the largest types of inhabited localities in Russia of the Russian Federation. It is also the largest European cities and metropolitan areas, with the Moscow metropolitan area ranking among the largest urban areas in the world....
, Friedrich Werner von der Schulenburg
Friedrich Werner von der Schulenburg

Friedrich-Werner Graf von der Schulenburg was a German diplomat who served as the last German ambassador to the Soviet Union before Operation Barbarossa....
, and the Soviet foreign minister, Vyacheslav Molotov
Vyacheslav Molotov

Vyacheslav Mikhailovich Molotov , Soviet Union politician and diplomacy, was a leading figure in the Government of the Soviet Union from the 1920s, when he rose to power as a prot?g? of Joseph Stalin, to 1957, when he was dismissed from Presidium of the Central Committee by Nikita Khrushchev....
, exchanged a series of diplomatic communiqués on the matter.

The Soviets delayed their intervention for several reasons. They were distracted by crucial events in their border disputes with Japan
Soviet-Japanese Border Wars

The Soviet?Japanese Border Wars were a series of border conflicts between the Soviet Union and Japan between 1938 and 1945.After the occupation of Manchukuo and Korea, Japan turned its military interests to Soviet territories....
; they needed time to mobilise the Red Army; and they saw a diplomatic advantage in waiting until Poland had disintegrated before making their move. On 17 September 1939, Molotov declared on the radio that all treaties between the Soviet Union and Poland were now void, because the Polish government had abandoned its people and effectively ceased to exist. On the same day, the Red Army
Red Army

The Red Army was the armed force first organized by the Bolsheviks during the Russian Civil War in 1918 and, in 1922, became the army of the Soviet Union....
 crossed the border into Poland.

Military campaign


The Red Army entered the eastern regions of Poland
Kresy

The term Kresy, meaning "Outskirts" or "Borderlands", was first used to define the Poland eastern frontier. The term referred to the eastern frontiers of the Polish-Lithuanian Commonwealth....
 with seven field armies
Field army

A Field Army, or Area Army, usually referred to simply as an Army, is a term used by many national military forces for a formation superior to a corps and beneath an army group....
 and between 450,000 and 1,000,000 troops. These were deployed on two fronts
Front (Soviet Army)

A front was a major military organization in the Soviet Army during the Second World War, roughly equivalent to an army group in the militaries of most other countries except Germany....
: the Belarusian Front under Mikhail Kovalyov
Mikhail Kovalyov

Colonel-General Mikhail Prokofievich Kovalyov was a Soviet military officer.Mikhail Kovalyov was born to family of a peasant in stanitsa Bryukovetskaya, Krasnodar Krai....
, and the Ukrainian Front under Semyon Timoshenko
Semyon Timoshenko

Semyon Konstantinovich Timoshenko was a Soviet Union military commander and senior professional officer of the Red Army at the beginning of the Nazi Germany invasion of the Soviet Union in 1941....
. By this time, the Poles had failed to defend their western borders
Battle of the Border

The Battle of the Border refers to the battles that occurred in the first days of the Nazi Germany Invasion of Poland in September, 1939....
, and in response to German incursions had launched a major counter-offensive in the Battle of the Bzura
Battle of the Bzura

The Battle of the Bzura was a battle in the opening campaign of World War II during the 1939 Nazi Germany Invasion of Poland , fought between September 9 and 19, 1939, between Poland and Nazi Germany forces....
. The Polish Army originally had a well-developed defensive plan to deal with the threat of the Soviet Union
Plan Wschód

Plan Wsch?d was a Poland defensive military plan, created in the 1920s and 1930s in case of war with the Soviet Union. Unlike Plan Zach?d , it was being prepared during the whole Interwar period, as the government of the Second Polish Republic treated the Soviet Union as the greatest potential military threat, capable of initiating a full-sc...
, but they were unprepared to face two invasions at once. By the time the Soviets invaded, the Polish commanders had sent most of their troops west to face the Germans, leaving the east protected by only 20 under-strength battalions. These battalions consisted of about 20,000 troops of border defence corps (Korpus Ochrony Pogranicza), under the command of general Wilhelm Orlik-Rueckemann
Wilhelm Orlik-Rueckemann

Wilhelm Orlik-Rueckemann was a Poland general, military commander and one of the pioneers of armoured warfare in Poland....
.

German Soviet
At first, the Polish commander-in-chief
Commander-in-Chief

A commander-in-chief is the commander of a nation's military forces or significant element of those forces. In the latter case, the force element may be defined as those forces within a particular region or those forces which are associated by function....
, Marshal of Poland
Marshal of Poland

Marshal of Poland is the highest rank in the Polish Army. It has been granted to only six officers. At present, this rank is equivalent to a Field Marshal or General of the Army in other NATO armies....
 Edward Rydz-Smigly
Edward Rydz-Smigly

Edward Rydz-Smigly sometimes Edward Smigly-Rydz ; nom de guerre Smigly, Tarlowski, Adam Zawisza) was a Marshal of Poland, Poland political figure, Commander-in-Chief of Poland's armed forces, and a Artist and poet....
, ordered the border forces to resist the Soviets. He then changed his mind after consulting with Prime Minister Felicjan Slawoj Skladkowski
Felicjan Slawoj Skladkowski

Felicjan Slawoj Skladkowski was a Poland physician, general and politician who served as Ministry of Internal Affairs and Administration of the Republic of Poland and was the last Prime Minister of Poland before World War II....
 and ordered them to fall back and engage the Soviets only in self-defense.

The two conflicting sets of orders led to confusion, and when the Red Army attacked Polish units, clashes and small battles inevitably broke out. The response of non-ethnic Poles to the situation added a further complication. In some cases, Ukrainians
Ukrainians

Ukrainians are an East Slavs ethnic group primarily living in Ukraine, or more broadly?citizens of Ukraine . Some 200 years ago and times prior to that, Ukrainians were usually referred to and known as Rusyny ....
, Belarusians
Belarusians

Belarusians or Belorussians are an East Slavs ethnic group who populate the majority of the Belarus and form minorities in neighboring Poland , Russia, Lithuania and Ukraine....
 and Jew
Jew

A Jew is a member of the Jewish people, an ethnoreligious group that traces its ancestry to the Israelites or Hebrews of the Ancient Near East....
s welcomed the invading troops as liberators. The Organization of Ukrainian Nationalists
Organization of Ukrainian Nationalists

Organization of Ukrainian Nationalists or OUN was a Ukraine political movement originally created in 1929 in the Second Polish Republic ....
 rose against the Poles, and communist partisans organised local revolts, for example in Skidel
Skidel

Skidel is a Belarusian town that is located 31 kilometers from Grodno. The village is sometimes referred to as a shtetl due to the high volume of Jewish people living there before the Holocaust....
.

The Polish military's original fall-back plan was to retreat and regroup along the Romanian Bridgehead
Romanian Bridgehead

The Romanian Bridgehead was an area in southeastern Poland, now located in Ukraine. During the Invasion of Poland of 1939 , on September 14 the Polish Commander in Chief Marshal of Poland Edward Rydz-Smigly ordered all Polish troops fighting east of the Vistula to withdraw towards Lw?w, and then to the hills along the borders with Romani...
, an area in south-east Poland near the border with Romania. The idea was to adopt defensive positions there and wait for a promised French and British attack in the west. This plan assumed that Germany would have to reduce its operations in Poland in order to fight on a second front. The allies expected Polish forces to hold out for up to several months, but the Soviet attack made this strategy obsolete.

The Polish political and military leaders knew that they were losing the war against Germany even before the Soviet invasion settled the issue. Nevertheless, they refused to surrender or negotiate a peace with Germany. Instead, the Polish government ordered all military units to evacuate Poland and reassemble in France
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
. The government itself crossed into Romania
Romania

Romania is a country located in Southeastern Europe Central Europe, North of the Balkan Peninsula, on the Lower Danube, within and outside the Carpathian Mountains, bordering on the Black Sea....
 at around midnight on 17 September 1939 through the border-crossing in Zaleszczyki. Polish units proceeded to manoeuvre towards the Romanian bridgehead area, sustaining German attacks on one flank and occasionally clashing with Soviet troops on the other. In the days following the evacuation order, the Germans defeated the Polish Armies Kraków and Lublin at the Battle of Tomaszów Lubelski
Battle of Tomaszów Lubelski

Battle of Tomasz?w Lubelski took place from 17 September to 26 September 1939 near the town of Tomasz?w Lubelski. It was the second largest battle of the Invasion of Poland and also the largest tank battle of the campaign....
, which lasted from 17 September to 20 September.

Soviet units often met their German counterparts advancing from the opposite direction. Several notable examples of co-operation occurred between the two armies in the field. The Wehrmacht
Wehrmacht

Wehrmacht was the name of the unified armed forces of Germany from 1935 to 1945. It consisted of the Heer , the Kriegsmarine and the Luftwaffe ....
 passed the Brest Fortress
Brest Fortress

Brest Fortress , formerly known as Brest-Litovsk Fortress , was the 19th century Russian fortress in Brest, Belarus. It is one of the most important Soviet World War II war monuments commemorating the Soviet resistance against the German invasion on June 22, 1941 ....
, which had been seized after the Battle of Brzesc Litewski
Battle of Brzesc Litewski

Battle of Brzesc Litewski was a World War II battle that took place between 14 and 17 September 1939, near the town of Brzesc Litewski . After three days of heavy fights for the Brest Fortress the Polish forces managed to successfully withdraw....
, to the Soviet 29th Tank Brigade on 17 September. German General Heinz Guderian
Heinz Guderian

Heinz Wilhelm Guderian was a Theorist and innovative General of the Nazi Germany Wehrmacht during the World War II. Germany's panzer forces were raised and fought according to his works, best-known among them Achtung? Panzer! He held posts as Panzer Corps commander, Panzer Army commander, Inspector-General of Armoured Troops, and Chief...
 and Soviet Brigadier Semyon Krivoshein
Semyon Krivoshein

Semyon Moiseevich Krivoshein was a Soviet tank commander, who played a vital part in the World War II reform of the Red Army tank forces and in momentous defeat of German Panzers in the Battle of Kursk....
 then held a joint parade
Parade

A parade is a procession of people, usually organized along a street, often in costume, and often accompanied by marching bands, float or sometimes large balloons....
 in the town. Lwów (Lviv) surrendered
Battle of Lwów (1939)

The Battle of Lw?w was a battle for the control over the Poland city of Lviv between the Polish Army and the invading Wehrmacht and the Red Army....
 on 22 September, days after the Germans handed the siege operations over to the Soviets. Soviet forces had taken Wilno
Vilnius

Vilnius is the largest city and the Capital of Lithuania, with a population of 555,613 as of 2008. It is the seat of the Vilnius city municipality and of the Vilnius district municipality....
 on 19 September after a two-day battle
Battle of Wilno (1939)

Battle of Wilno was one of the major battles during the Soviet invasion of Poland that accompanied the Invasion of Poland . During the days of 18-19 September, the Soviet forces approached and took over the major city of Wilno....
, and they took Grodno on 24 September after a four-day battle
Battle of Grodno (1939)

The Battle of Grodno took place between September 21 and September 24, 1939, during the Invasion of Poland . It was fought between improvised Polish units under Gen....
. By 28 September, the Red Army had reached the line of the rivers Narew, Western Bug, Vistula and San—the border agreed in advance with the Germans.

Despite a tactical Polish victory on 28 September at the Battle of Szack
Battle of Szack

Battle of Szack was one of the major battles between the Polish Army and the Red Army fought in 1939 in the beginning the Second World War....
, the outcome of the larger conflict was never in doubt. Civilian volunteers, militia
Militia

The term militia is commonly used today to refer to a military force composed of ordinary citizens to provide defense, emergency law enforcement, or paramilitary service, in times of emergency without being paid a regular salary or committed to a fixed term of service....
s, and reorganised retreating units held out in the Polish capital
Siege of Warsaw (1939)

The 1939 Battle of Warsaw was fought between the Polish Army Armia Warszawa garrisoned and entrenched in the Capital of Poland and the German Army....
, Warsaw
Warsaw

Warsaw is the Capital and World's largest cities of Poland. It is located on the Vistula River roughly from both the Baltic Sea coast and the Carpathian Mountains....
, until 28 September. The Modlin Fortress
Modlin Fortress

Modlin Fortress is one of the biggest 19th century fortresses in Poland. It is located near the village of Modlin on the Bugonarew river, some 50 kilometres north of Warsaw....
, north of Warsaw, surrendered the next day after an intense sixteen-day battle
Battle of Modlin

The Battle of Modlin took place during the German Invasion of Poland at the beginning of the Second World War. Modlin Fortress was initially the headquarters of the Modlin Army until its retreat eastwards....
. On 1 October, Soviet troops drove Polish units into the forests at the battle of Wytyczno
Battle of Wytyczno

The battle of Wytyczno took place on October 1, 1939 near the village of Wytyczno near Wlodawa in Poland. It was a struggle between the Polish forces of the Border Defence Corps of Gen....
, one of the last direct confrontations of the campaign.

Some isolated Polish garrison
Garrison

Garrison is the collective term for a body of troops stationed in a particular location, originally to guard it, of more than 50 men, but now often simply using it as a home base....
s managed to hold their positions long after being surrounded; but the last operational unit of the Polish Army to surrender was General Franciszek Kleeberg
Franciszek Kleeberg

Franciszek Kleeberg was a Polish general. He served in the Austro-Hungarian Army before joining the Polish Legions in World War I and later the Polish Army....
's Independent Operational Group Polesie
Independent Operational Group Polesie

Independent Operational Group Polesie was one of the Poland Army Corps that defended Poland during the Invasion of Poland in 1939. It was created on September 11 1939 and was commanded by general Franciszek Kleeberg....
 (Samodzielna Grupa Operacyjna "Polesie")
. Kleeberg surrendered on 6 October after the four-day Battle of Kock
Battle of Kock (1939)

The Battle of Kock, was the final battle of the Invasion of Poland at the beginning of World War II. It took place from October 2 through October 5, 1939, near the town of Kock, Poland....
 (near Lublin
Lublin

Lublin is the largest city in Poland east of the Vistula, and the capital of Lublin Voivodeship with a population of 355,954 . It is List of cities and towns in Poland....
), which ended the September Campaign. The Soviets were victorious. On 31 October, Molotov
Vyacheslav Molotov

Vyacheslav Mikhailovich Molotov , Soviet Union politician and diplomacy, was a leading figure in the Government of the Soviet Union from the 1920s, when he rose to power as a prot?g? of Joseph Stalin, to 1957, when he was dismissed from Presidium of the Central Committee by Nikita Khrushchev....
 reported to the Supreme Soviet
Supreme Soviet

The Supreme Soviet of the USSR was the highest legislative body in the Soviet Union in the interim of the sessions of the Congress of Soviets, and the only one with the power to pass constitutional amendments....
: "A short blow by the German army, and subsequently by the Red Army, was enough for nothing to be left of this ugly creature of the Treaty of Versailles
Treaty of Versailles

The Treaty of Versailles was one of the peace treaty at the end of World War I. It ended the declaration of war between German Empire and Allies of World War I....
".

Allied reaction


The reaction of France and Britain to Poland's plight was muted, since neither wanted a confrontation with the Soviet Union at that stage. Under the terms of the Anglo-Polish Agreement
Polish-British Common Defence Pact

The Anglo-Polish military alliance refers to agreements reached between the United Kingdom and the Polish Second Republic for mutual assistance in case of military invasion by a third party....
 of 25 August 1939, the British had promised Poland assistance if attacked by a European power; but when Polish Ambassador Edward Raczynski reminded Foreign Secretary
Secretary of State for Foreign and Commonwealth Affairs

The Secretary of State for Foreign and Commonwealth Affairs, commonly referred to as the Foreign Secretary, is a member of the Her Majesty's Government in the United Kingdom heading the Foreign and Commonwealth Office and responsible for relations with foreign countries, matters pertaining to the Commonwealth of Nations and the UK's Br...
 Lord Halifax
E. F. L. Wood, 1st Earl of Halifax

Edward Frederick Lindley Wood, 1st Earl of Halifax, Order of the Garter, Order of Merit, Order of the Star of India, Order of St Michael and St George, Order of the Indian Empire, Privy Council of the United Kingdom , known as The Baron Irwin from 1925 until 1934 and as The Viscount Halifax from 1934 until 1944, was one of the mos...
 of the pact, he was bluntly told that it was Britain's business whether to declare war on the Soviet Union. British Prime Minister
Prime Minister of the United Kingdom

The Prime Minister of the United Kingdom of Great Britain and Northern Ireland is the political leader of the United Kingdom and the head of government Her Majesty's Government....
 Neville Chamberlain
Neville Chamberlain

Arthur Neville Chamberlain was a British Conservative Party politician and Prime Minister of the United Kingdom from 1937 to 1940. Chamberlain is best known for appeasement foreign policy, in particular regarding his signing of the Munich Agreement in 1938, conceding the Sudetenland region of Czechoslovakia to Germany, and for his "containm...
 considered making a public commitment to restore Polish statehood, but in the end he issued only general statements of condemnation.

The French had also made promises to Poland, including the provision of air support, and these were not honoured. Once the Soviets moved into Poland, the French and the British decided there was nothing they could do for Poland in the short term and began planning for a long-term victory instead. The French had advanced tentatively into the Saar
Saar Offensive

The Saar Offensive was a France operation into the Saarland on the Germany 1st Army defence sector in the early stages of World War II. The purpose of the attack was to assist Poland, which was then Polish September Campaign....
 in early September, but after the Polish defeat, they retreated behind the Maginot Line
Maginot Line

The Maginot Line , named after French Minister of Defence Andr? Maginot, was a line of concrete fortifications, tank obstacles, artillery casemates, machine gun posts, and other defenses, which France constructed along its borders with Germany and Italy, in the light of experience from World War I, and in the run-up to World War II....
 on 4 October. Many Poles resented this lack of support from their western allies, which aroused a lasting sense of betrayal
Western betrayal

Western betrayal or Yalta betrayal are popular terms in many Central European countries, especially in Poland and the Czech Republic which refers to the foreign policy of several Western countries which violated allied pacts and agreements during the period from the Treaty of Versailles in 1919 through World War II and to the Cold War,...
.

Aftermath


In October 1939, Molotov reported to the Supreme Soviet that the Soviets had suffered 737 deaths and 1,862 casualties during the campaign, though Polish specialists claim up to 3,000 deaths and 8,000 to 10,000 wounded. On the Polish side, between 6,000 and 7,000 soldiers died fighting the Red Army, with 230,000 to 450,000 taken prisoner. The Soviets often failed to honour terms of surrender. In some cases, they promised Polish soldiers freedom and then arrested them when they laid down their arms.

The Soviet Union had ceased to recognise the Polish state at the start of the invasion. As a result, the two governments never officially declared war on each other. The Soviets therefore did not classify Polish military prisoners as prisoners of war but as rebels against the new legal government of Western Ukraine and Western Byelorussia. The Soviets killed tens of thousands of Polish prisoners of war. Some, like General Józef Olszyna-Wilczynski
Józef Olszyna-Wilczynski

J?zef Konstanty Olszyna-Wilczynski was a Poland general and one of the high-ranking commanders of the Polish Army. A veteran of World War I, Polish-Ukrainian War and the Polish-Bolshevik War, he was murdered by the Soviets during the Invasion of Poland of 1939....
, who was captured, interrogated and shot on 22 September, were executed during the campaign itself. On 24 September, the Soviets killed forty-two staff and patients of a Polish military hospital in the village of Grabowiec
Grabowiec, Zamosc County

Grabowiec is a village in Zamosc County, Lublin Voivodeship, in eastern Poland. It is the seat of the gmina called Gmina Grabowiec. It lies approximately north-east of Zamosc and south-east of the regional capital Lublin....
, near Zamosc
Zamosc

Zamosc [] is a town in southeastern Poland with 66,633 inhabitants , situated in the Lublin Voivodeship . About 20 kilometres from the town is the Roztocze National Park....
. The Soviets also executed all the Polish officers they captured after the Battle of Szack
Battle of Szack

Battle of Szack was one of the major battles between the Polish Army and the Red Army fought in 1939 in the beginning the Second World War....
, on 28 September 1939. Over 20,000 Polish military personnel and civilians perished in the Katyn massacre
Katyn massacre

The Katyn massacre, also known as the Katyn Forest massacre , was a mass murder of thousands of Poles military officers, policemen, intellectuals and civilian pow by Soviet NKVD, based on a proposal from Lavrentiy Beria to execute all members of the Polish Officer Corps dated March 5 1940....
. About 300 Poles were executed after the Battle of Grodno .

Torture
Torture

Torture, according to the United Nations Convention Against Torture, is:In addition to state-sponsored torture, individuals or groups may be motivated to inflict torture on others for similar reasons to those of a state; however, the motive for torture can also be for the sadism gratification of the torturer, as was the case in the Moors M...
 was used on a wide scale in various prisons, especially those in small towns. Prisoners were scalded with boiling water in Bobrka
Bóbrka

B?brka may refer to the following places:*Historical Polish name for Bibrka, Ukraine*B?brka, Lesko County in Subcarpathian Voivodeship *B?brka, Krosno County in Subcarpathian Voivodeship ...
; in Przemyslany, people had their noses, ears, and fingers cut off and eyes put out; in Czortkow, female inmates had their breasts cut off; and in Drohobycz, victims were bound together with barbed wire. Similar atrocities occurred in Sambor
Sambor

Sambor may refer to:* Sambor I, Duke of Pomerania * Sambor II, Duke of Pomerania * Sambor, a Principality of Rugia* Sambir, Ukraine* Prasat Sambour District, a district of Kampong Thom province, Cambodia...
, Stanislawow
Stanislawów

Stanislaw?w may refer to the following places:*Polish name for Ivano-Frankivsk, a city now in Ukraine*Stanislaw?w, Lower Silesian Voivodeship ...
, Stryj
Stryj

Stryj may refer to:*Stryj, Lublin Voivodeship *Stryi, Ukraine - Stryj in Polish...
, and Zloczow. According to historian Jan T. Gross
Jan T. Gross

Jan Tomasz Gross is a Polish American historian and sociologist. He is the Norman B. Tomlinson '16 and '48 Professor of War and Society and Professor of History at Princeton University....
:

"We cannot escape the conclusion: Soviet state security organs tortured their prisoners not only to extract confessions but also to put them to death. Not that the NKVD
NKVD

The NKVD or People's Commissariat for Internal Affairs was the leading secret police organization of the Soviet Union that was responsible for Soviet political repressions during the Stalinism era....
 had sadists in its ranks who had run amok; rather, this was a wide and systematic procedure."


The Poles and the Soviets re-established diplomatic relations in 1941, following the Sikorski-Mayski Agreement; but the Soviets broke them off again in 1943 after the Polish government demanded an independent examination of the recently discovered Katyn burial pits. The Soviets then lobbied the Western Allies to recognise the pro-Soviet Polish puppet government of Wanda Wasilewska
Wanda Wasilewska

Wanda Wasilewska was a Poland and Soviet novelist and communist political activist who played an important role in the creation of a Polish division of the Soviet Red Army during World War II and the formation of People's Republic of Poland....
 in Moscow.

On 28 September 1939, the Soviet Union and Germany had changed the secret terms of the Molotov-Ribbentrop Pact
Molotov-Ribbentrop Pact

The Molotov?Ribbentrop Pact, colloquially named after Soviet Union foreign minister Vyacheslav Molotov and Nazi Germany foreign minister Joachim von Ribbentrop, was an agreement officially titled the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics and signed in Moscow in the early hours of August 24...
. They moved Lithuania
Lithuania

Lithuania , officially the Republic of Lithuania is a country in Northern Europe, the southernmost of the three Baltic states. Situated along the southeastern shore of the Baltic Sea, it shares borders with Latvia to the north, Belarus to the southeast, Poland, and the Russian exclave of Kaliningrad Oblast to the southwest....
 into the Soviet sphere of influence
Sphere of influence

A sphere of influence is an area or region over which an organization or state exercises cultural, economic, military or political domination....
 and shifted the border in Poland to the east, giving Germany more territory. By this arrangement, often described as a fourth partition of Poland, the Soviet Union secured almost all Polish territory east of the line of the rivers Pisa, Narew, Western Bug and San. This amounted to about 200,000 square kilometres of land, inhabited by 13.5 million Polish citizens.

The Red Army had originally sown confusion among the locals by claiming that they were arriving to save Poland from the Nazis. Their advance surprised Polish communities and their leaders, who had not been advised how to respond to a Soviet invasion. Polish and Jewish citizens may at first have preferred a Soviet regime to a German one. However, the Soviets were quick to impose their ideology on the local ways of life. For instance, the Soviets quickly began confiscating, nationalising and redistributing all private and state-owned Polish property. During the two years following the annexation, the Soviets also arrested approximately 100,000 Polish citizens and deported between 350,000 and 1,500,000, of whom between 250,000 and 1,000,000 died, mostly civilians.

Territories of Second Polish Republic annexed by Soviet Union


Of the 13.5 million civilians living in the newly annexed territories
Polish areas annexed by the Soviet Union

After the invasion of Poland that marked the start of World War II in 1939, the Soviet invasion of Poland invaded eastern regions of the Second Polish Republic, and annexed territories totaling 201,015 km? with a population of 13.299 million....
, Poles were the largest single ethnic group; but Belarusians and Ukrainians together made up over 50% of the population. The annexation did not give the Soviet Union control of all the areas where Belarusians or Ukrainians lived, some of which fell west of the new German–Soviet border. Nonetheless, it united the vast majority of the two peoples within the expanded Soviet Byelorussian
Byelorussian SSR

The Byelorussian Soviet Socialist Republic was one of Republics of the Soviet Union of the Soviet Union. It was one of the four original founding members of the Soviet Union in 1922, together with the Ukrainian Soviet Socialist Republic, the Transcaucasian SFSR and the Russian Soviet Federative Socialist Republic....
 and Ukrainian
Ukrainian SSR

The Ukrainian Soviet Socialist Republic or the Ukrainian SSR was one of the founders of the USSR and a republic that made up the former Soviet Union from its formation in 1922 to its abolishment in 1991....
 republics.

On 26 October 1939, "elections" to Byelorussian and Ukrainian assemblies were held, to give the annexation an appearance of validity. The Belarusians and Ukrainians in Poland had been increasingly alienated by the Polonization
Polonization

Polonization is the acquisition or imposition of elements of Polish culture, especially Polish language, as experienced in some historic periods by non-Polish populations of territories controlled or substantially influenced by Poland....
 policies of the Polish government and its repression of their separatist movements, so they felt little loyalty towards the Polish state. Not all Belarusians and Ukrainians, however, trusted the Soviet regime responsible for the Ukrainian Famine of 1932–33
Holodomor

The Holodomor refers to the famine of 1932?1933 in the Ukrainian SSR during which millions of people were starved to death because of the Soviet policies that forced farmers into Collectivization in the Soviet Unions....
. In practice, the poor generally welcomed the Soviets, and the elites tended to join the opposition, despite supporting the reunification itself.

The Soviets quickly introduced Sovietization
Sovietization

Sovietization is term that may be used with two distinct meanings:*the adoption of a political system based on the model of soviet s .*the adoption of a way of life and mentality modelled after the Soviet Union....
 policies in Western Byelorussia and Western Ukraine, including compulsory collectivization of the whole region. In the process, they ruthlessly broke up political parties and public associations and imprisoned or executed their leaders as "enemies of the people". The authorities even suppressed the anti-Polish Organization of Ukrainian Nationalists
Organization of Ukrainian Nationalists

Organization of Ukrainian Nationalists or OUN was a Ukraine political movement originally created in 1929 in the Second Polish Republic ....
, which had actively resisted the Polish regime since the 1920s; despite their change of overlord, Ukrainian nationalists continued to aim for an independent, undivided Ukrainian state. The unifications of 1939 were nevertheless a decisive event in the history of Ukraine
Ukraine

Ukraine is a country in Eastern Europe. It is bordered by Russia to the east; Belarus to the north; Poland, Slovakia, and Hungary to the west; Romania and Moldova to the southwest; and the Black Sea and Sea of Azov to the south....
 and Belarus
Belarus

Belarus is a landlocked country in Eastern Europe, bordered by Russia to the north and east, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the north....
, because they produced two republics which eventually achieved independence in 1991 after the fall of the Soviet Union.



Censorship

Soviet censors later suppressed many details of the 1939 invasion and its aftermath. The Politburo
Politburo

Politburo, short for Political Bureau, Russian language Politicheskoye Buro, is the executive organization for a number of political parties, most notably those of Communist Party....
 had from the first called the operation a "liberation campaign", and later Soviet statements and publications never wavered from that line. On 30 November 1939, Stalin
Joseph Stalin

Joseph Stalin was the General Secretary of the Communist Party of the Soviet Union's Central Committee of the Communist Party of the Soviet Union from 1922 until his death in 1953....
 stated that it was not Germany who had attacked France and England, but France and England who had attacked Germany; and the following March, Molotov claimed that Germany had tried to make peace and been turned down by "Anglo-French imperialists". All subsequent Soviet governments denied that there had ever been a secret protocol to the Molotov-Ribbentrop Pact; but when the document was "found" in the Soviet archives in 1989, the truth was finally acknowledged. Censorship was also applied in the People's Republic of Poland
People's Republic of Poland

The People's Republic of Poland or Polish People's Republic was the official name of Poland from 1952 to 1989 inclusively.Although the People's Republic of Poland was a sovereignty state as defined by international law, its leaders were at the very least approved by Soviet Union leaders....
, to preserve the image of "Polish-Soviet friendship" promoted by the two communist governments. Official policy allowed only accounts of the 1939 campaign that portrayed it as a reunification of the Belarusian and Ukrainian peoples and a liberation of the Polish people from "oligarchic capitalism.” The authorities strongly discouraged any further study or teaching on the subject. However, various underground publications (bibula) addressed the issue, as did other media, such as the 1982 protest song
Protest song

A protest song is a song which is associated with a movement for social change and hence part of the broader category of topical songs . It may be folk, classical, or commercial in genre....
 of Jacek Kaczmarski
Jacek Kaczmarski

Jacek Kaczmarski was a Poland singer, songwriter, poet and author.Kaczmarski was considered by many to be a voice of the anti-communist Solidarity movement in the 1980s, for his commitment to a free Poland, independent of Soviet rule....
 (Ballada wrzesniowa.)

Orders of battle

See articles:
  • Polish army order of battle in 1939
    Polish army order of battle in 1939

    Polish OOB during the Invasion of Poland . In the late thirties Polish headquarters prepared "Plan Zach?d" , a plan of mobilization of Polish Army in case of war with Germany....
  • Soviet order of battle for invasion of Poland in 1939
    Soviet order of battle for invasion of Poland in 1939

    The Soviet order of battle for the invasion of Poland in 1939 details the major combat units arrayed for Soviet invasion of Poland on 17 September, 1939....


Bibliography

This section lists printed references used for this article. For inline citations, see references section above.


External links

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