The excuse he gave to the German people was to give them "living space". In other words, he expected to replace Polish people with German people.
Hitler first sent troops to: Occupy the Rhineland Auchess with Austria Annex Czechoslovakia & Invade Poland (Which Started World War Two)
After Hitler Invaded Poland because Britan had a alliance with Poland
When Hitler invaded Poland.
That Hitler took over Poland in only 1 week.
Hitler INVADED, (not invited ), Poland because he wanted to control the whole of Europe
He invaded Poland and divided it with the USSR.
Germany, technically.
Just before Germany invaded Poland, Germany and Russia signed a non-agression pact which included a secret portion in which they agreed that after the German invasion, Russia could occupy those parts of Poland Germany did not sieze.
No, concentration camps did not exist before Hitler invaded Poland.
Militarily, Hitler succeded very quickly in invading and subduing half of Poland. The other half was occupied by the Soviet Union (Russia) as agreed by treaty with Hitler.
Hitler moved to Germany, but was originally from Poland.
Poland