Occupation of Poland (1939–1945)

During World War II, Poland was occupied by Nazi Germany and the Soviet Union (and Slovakia) following the invasion in September 1939, and it was formally concluded with the defeat of Germany by the Allies in May 1945. Throughout the entire course of the occupation, the territory of Poland was divided between Nazi Germany and the Soviet Union (USSR), both of which intended to eradicate Poland's culture and subjugate its people.

Source: Wikipedia — Occupation of Poland (1939–1945) (CC BY-SA 4.0)