The Invasion of Poland, [e] also known as the September Campaign, [f] Polish Campaign, [g] and Polish Defensive War of 1939 [h] [13] (1 September – 6 October 1939), was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union, which marked the beginning of World War II. [14]

The history of Poland from 1939 to 1945 encompasses primarily the period from the invasion of Poland by Nazi Germany and the Soviet Union to the end of World War II. Following the German–Soviet non-aggression pact, Poland was invaded by Nazi Germany on 1 September 1939 and by the Soviet Union on 17 September.

Invasion of Poland, attack on Poland by Nazi Germany that marked the start of World War II. The invasion lasted from September 1 to October 5, 1939. As dawn broke on September 1, 1939, German forces launched a surprise attack on Poland.

During World War II, Poland was occupied by Nazi Germany and the Soviet Union following the invasion in September 1939, and it was formally concluded with the defeat of Germany by the Allies in May 1945.

The story of the September Campaign of 1939 is worthy of being remembered both as part of the long Polish fight for freedom, and as the opening act of World War II.

Aug 25, 2021 · German troops invaded Poland on September 1, 1939, triggering World War II. In response to German aggression, Great Britain and France declared war on Nazi Germany.

Nov 6, 2024 · In March 1939, shortly after Hitler's occupation of Czechoslovakia, the Nazi dictator called for Poland to hand over Danzig and provide Germany with a land route (road and rail) across the Polish Corridor to connect with East Prussia. The Polish government refused.

Sep 1, 2014 · In the border town of Gleiwitz, S.S. operatives donned Polish military uniforms and seized one of Germany’s own radio stations and broadcast an anti-Nazi message in Polish.

Oct 1, 2018 · Poland was the first country in Europe to experience World War Two, which begun on 1 September 1939. Poland was also the first country to engage in armed combat with the joined forces of Nazi Germany and the USSR in their attempt the change the world order.

Jan 17, 2025 · World War II - Europe, 1939-41: The German conquest of Poland in September 1939 was the first demonstration in war of the new theory of high-speed armoured warfare that had been adopted by the Germans when their rearmament began.