German and Soviet troops in the occupied Polish city during the parade of victory:
Best allies of 1939
Before 1939 happened 1938. Matter of fact.
Official Poland greatly mistaken for gave wrong signals in 1938, when together with Nazi Germany (with blessings of western Europe!), took part in partition of Czechoslovakia. Germany annexed Czechoslovakia's border regions - Sudet, while Poland entered and overrun northeastern part of the borderland region known as Zaolzie.
I don`t say that Soviets were right. I just say that Poland played badly, got assurances from Britain and France and even from Nazi Germany, while played role of open enemy to communist Soviet Union. Not to speak that everything that coming from East was and is always demonized in Poland. Then, masks fall down and Poland was obliterated, in the first place, by western Europe.
You would note that official Poland making similar mistakes these days. Seams that official Poland don`t serve Poland but some other interests.