Robin
Welcome back PPC. Great to see you!
did not invade Austria, that he simply “reacted when Germany got attacked”
That was Polland. See “Seit 5:45 Uhr wird zurückgeschossen“. Austria was simply taken over, in nazi speech “re-unified” and claiming it was “people’s will”, by a construct called “Anschluß Österreichs“, they named it “Wiedervereinigung Österreichs mit dem Deutschen Reich“. Austria was governed by Austrian Nazis already when the Anschluss was carried out. But you are right, neither Austria nor Polland nor any other country had attacked Germany.
Windows is like a submarine. Open a window and serious problems will start.