What occurred leading up to the invasion of Poland of which you speak? You seem to entirely disregard the whole Danzig and Corridor affairs, both examples of Polish aggression towards Germans within their jurisdiction. Also, Poland violated Versailles first by refusing to permit the political independence and self governance of Danzig.
If you agree with the biased Nazi propaganda...
No serious student of history would disagree with anything I've stated above. Poland made it quite clear that their intention was to annex Danzig, and they were in the process of doing so when Germany invaded to uphold the rights, recognized under Versailles, of the Germans of that city.
