During the German occupation of Poland, there was a nearby military airport.

Also, first discussions about the occupation of Poland were started.

During the remaining occupation of Poland he participated in clandestine teaching.

During the German occupation of Poland, he was active in the underground cultural movement.

Its purpose was to oppose the Soviet occupation of Poland.

Its activities were interrupted between 1939-1945 due to the German occupation of Poland.

It is estimated that between 1.6 and 2 million people were expelled from their homes during the German occupation of Poland.