Hitler had several reasons. After the successful unification (the Anschluss) with Austria, he knew that the German public would love the idea of also seeing Czechoslovakia annexed: at least its Western part, called Sudetenland, which had been part of the German empire before WW 1 and where millions of Germans still lived.
Annexing also the rest of Czechoslovakia had a strategic reason: Hitler was already planning to invade Poland. Czechoslovakia had a strong and modern army which he needed out of the game so that it would and could not come to the aid of Poland. After he had forced Czechoslovakia's president to sign an act of surrender, he could simply walk in and disband and disarm its army.
czechoslovakia
ITALY Swiss. ALPS NEPAL PAKISTAN. AND Yugoslavia
Austria
The Battle of Britan, the air war over England.
Poland and Czechslovakia.
Hitler, Austrian by birth, had no reason to invade Germany. About two years after becoming chancellor of Germany, Hitler had a firm choke hold on the entire country, so he then focused on invading other countries.
Hitler did not invade North Korea.
Hitler did invade the USSR on 22 June 1941.
No
About half of Europe.
Yes
Yes
No
To be honest, they invaded anywhere, kinda like Hitler, it wasn't for a reason, it was a bout power. Hitler did invade some places for a reasons ie him and Stalin agreed to split Poland in half when the Nazis invaded, but that didnt happen and thus WW2
Hitler first annexed Austria.
No
Poland