czechoslovakia
Austria
The Battle of Britan, the air war over England.
Poland and Czechslovakia.
England could have easily been invaded by the Germans if Hitler had decided to invade England. He chose to invade Russia instead.
Hitler did not invade North Korea.
Hitler did invade the USSR on 22 June 1941.
No
About half of Europe.
Yes
Yes
No
Hitler first annexed Austria.
1939 Poland
Poland
No
Operation Barbarossa was Hitler's plan to invade the USSR. It was, and still is, the largest land invasion in history.