Log in Sign up
Back to Discover
🏛️

Invasion of Poland

history Maturity 11-13 war conflict
This article covers sensitive topics: war_conflict. Parents can manage visibility in Parental Controls.

Long ago, a big fight began.

Second World War Europe.png
Second World War Europe.png
It happened in a place called Poland. Two groups of soldiers came to the land. They took the land away. This was a very sad time.
Polish infantry marching -2 1939.jpg
Polish infantry marching -2 1939.jpg
Can you imagine how they felt?

47 words

A big fight began in a land called Poland.

Second World War Europe.png
Second World War Europe.png
Two groups of soldiers came to the land at once. Germany and the Soviet Union attacked Poland. This fight was the start of a very large war. Many people had to leave their homes.
Polish infantry marching -2 1939.jpg
Polish infantry marching -2 1939.jpg
It was a very sad time for the people. They worked hard to stay strong through the hard days.

79 words

In 1939, a large war began in Europe.

Second World War Europe.png
Second World War Europe.png
It started when Germany attacked Poland on September 1.

Germany and the Soviet Union had made a secret deal. This was called the Molotov–Ribbentrop Pact.

MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
The two countries agreed to divide Poland between them.

Germany attacked from the north, south, and west. The Soviet Union attacked from the east on September 17. This second attack made it very hard for Poland to defend itself.

France and the United Kingdom had deals to help Poland. They declared war on Germany on September 3. However, their help for Poland was very small.

Polish soldiers fought hard to protect their land.

Polish infantry marching -2 1939.jpg
Polish infantry marching -2 1939.jpg
They moved to the southeast to try to hold their ground. By October 6, Germany and the Soviet Union controlled all of Poland.

This event ended the Second Polish Republic. Many Polish people joined groups to fight back from underground. Others left to join the Polish army in other lands.

Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg
Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg

185 words

The invasion of Poland was a major event that began World War II.

Second World War Europe.png
Second World War Europe.png
It was a joint attack on the Republic of Poland. Nazi Germany, the Slovak Republic, and the Soviet Union all took part in the invasion. The main goal of the attackers was to end Poland as an independent country. They wanted to divide the land between themselves. This period of fighting is also called the September Campaign.
Poland1939 GermanPlanMap.jpg
Poland1939 GermanPlanMap.jpg
It lasted from September 1 until October 6, 1939.

The fighting happened in several stages across the country. Germany and its allies attacked from the north, south, and west.

Dywizje wrzesien 1.png
Dywizje wrzesien 1.png
Polish forces tried to defend themselves by moving to new lines in the east. They hoped to hold a position called the Romanian Bridgehead. They were waiting for help from France and the United Kingdom. On September 3, the United Kingdom and France declared war on Germany.
Polish infantry marching -2 1939.jpg
Polish infantry marching -2 1939.jpg
However, the help that arrived for Poland was very limited. The Polish army was defeated before much aid could reach them.

Before the war, tensions grew between Germany and Poland.

MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
Adolf Hitler, the leader of Germany, wanted more land for his country. He wanted to take the Free City of Danzig and the Polish Corridor. These were areas that had been part of Poland since the end of World War I. Germany and the Soviet Union also made a secret deal. This was the Molotov–Ribbentrop Pact signed in August 1939.
MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
This pact allowed the two countries to divide Eastern Europe into different areas of influence.

Specific dates show how quickly the situation changed for Poland. The German invasion began on September 1, 1939.

Poland1939 after 14 Sep.jpg
Poland1939 after 14 Sep.jpg
On September 17, the Soviet Red Army invaded Eastern Poland. This second attack made it impossible for the Polish plan of defense to work. The Polish government had to order an emergency evacuation to Romania. After the Battle of Kock, the fighting ended on October 6. By then, Germany and the Soviet Union had full control of the land.

Even though the country was taken, the story did not end there.

Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg
Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg
The invasion ended the Second Polish Republic. Many Polish people formed underground resistance groups to fight back. Other soldiers escaped to join the Polish Armed Forces in the West. These soldiers remained loyal to the Polish government-in-exile. This shows how people continued to work for their country's independence. The struggle for Poland continued throughout the rest of the war.

438 words

The invasion of Poland was a massive military campaign that began World War II.

Second World War Europe.png
Second World War Europe.png
This conflict, also called the September Campaign, involved a joint attack on the Republic of Poland. Nazi Germany, the Slovak Republic, and the Soviet Union all participated in the invasion. The primary goal was to end Poland's existence as a sovereign nation. The attackers intended to divide the country and its people among themselves. This period of intense fighting lasted from September 1 to October 6, 1939.

The invasion followed years of rising tensions and aggressive diplomacy.

MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
Adolf Hitler, the leader of Nazi Germany, wanted to expand German territory. He specifically targeted the Free City of Danzig and the Polish Corridor. The Corridor was a strip of land that had been part of Poland since the Treaty of Versailles. The city of Danzig had a German majority and was a nominally independent area. Hitler used these territorial disputes as a casus belli, or a reason for war. He claimed that Germans in Poland were being persecuted to justify his actions.

Before the fighting started, Germany and the Soviet Union made a secret agreement.

MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
This was the Molotov–Ribbentrop Pact, signed on August 23, 1939. The pact included a secret protocol to divide Eastern Europe into spheres of influence. Germany was to take the western third of Poland. The Soviet Union was to take the eastern two-thirds. This agreement meant that Germany would not have to worry about Soviet opposition during its attack. It effectively cleared the way for the German military to move against Poland.

The military campaign unfolded in several rapid and difficult stages.

Poland1939 GermanPlanMap.jpg
Poland1939 GermanPlanMap.jpg
On September 1, 1939, German and Slovak forces invaded from the north, south, and west.
Dywizje wrzesien 1.png
Dywizje wrzesien 1.png
Polish forces initially withdrew from the borders to established defense lines in the east. They attempted to hold a position known as the Romanian Bridgehead. They hoped to receive relief from their allies, France and the United Kingdom. On September 3, the United Kingdom and France declared war on Germany. However, the actual military aid that reached Poland was very limited.

The situation became impossible for Poland when a second front opened.

Poland1939 after 14 Sep.jpg
Poland1939 after 14 Sep.jpg
On September 17, the Soviet Red Army invaded Eastern Poland. This invasion followed the territory beyond the Curzon Line. The Soviet move rendered the Polish defensive plans obsolete. Facing two massive armies, the Polish government ordered an emergency evacuation to neutral Romania. The campaign finally ended on October 6 after the Battle of Kock. By this time, German and Soviet forces had gained full control over the country.

The invasion resulted in the total collapse of the Second Polish Republic. Following the defeat, Germany annexed western Poland and the former Free City of Danzig. The remaining territory was placed under the administration of the General Government. The Soviet Union incorporated its new lands into the Byelorussian and Ukrainian republics. They immediately began a process of Sovietization in these areas. This reorganization changed the political map of Europe for the duration of the war.

Despite the military defeat, the Polish people did not stop fighting.

Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg
Valentine tanks of the 1st Polish Corps on exercise in Scotland.jpg
A collective of underground resistance organizations formed the Polish Underground State. These groups worked within the occupied territory to resist German and Soviet control. Many military members escaped the country to join the Polish Armed Forces in the West. These soldiers remained loyal to the Polish government-in-exile. Their continued resistance showed that while the land was occupied, the Polish state lived on through its people.

608 words
🖼️ Images & Media (21)
File:MolotovRibbentropStalin.jpg
MolotovRibbentropStalin.jpg
File:Second World War Europe.png
Second World War Europe.png
File:Polish infantry marching -2 1939.jpg
Polish infantry marching -2 1939.jpg
File:Samoloty PZL.37 Łoś wraz z załogami (1939).jpg
Samoloty PZL.37 Łoś wraz z załogami (1939).jpg
File:7TP Polish Tank.png
7TP Polish Tank.png
File:Poland1939 GermanPlanMap.jpg
Poland1939 GermanPlanMap.jpg
File:Dywizje wrzesien 1.png
Dywizje wrzesien 1.png
File:Peking.jpg
Peking.jpg
File:Poland2.jpg
Poland2.jpg
File:Bundesarchiv Bild 183-S55480, Polen, Parade vor Adolf Hitler.jpg
Bundesarchiv Bild 183-S55480, Polen,...
File:Polish infantry in attack 1939.jpg
Polish infantry in attack 1939.jpg
File:Poland1939 after 14 Sep.jpg
Poland1939 after 14 Sep.jpg

+ 9 more

Up Next
🏛️
Soviet invasion of Poland
History
More to explore

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.