A blitzreig {lightning war} in Poland caused by Germany.
It was third of ,September 1939 when the German pocket battleship Graf Spee shelled Poland and the Germans performed the Blitzreig.
Not really. Blitzkreig means 'lightning war" or war that is really fast. Blitzreig is more associated with Poland, Denmark and the other low countries, France, and on. Out of your list, Britain never was invaded.