Czecoslovakia
Germany invaded France
poland
Austria
GERMANY FIRST INVADED POLAND
Poland by Germany
Poland was invaded by Germany
The Holocaust was not a military action
Belgium
Austria (not Australia, which is on the other side of the world) was invaded and annexed by Nazi Germany in March 1938.Parts of Czechoslovakia were occupied by Germany after the Munich Agreement of September 1938, and then the country was totally destroyed in March 1939- the rest of the Czech part of the country was claimed by Germany, and the Slovak part became an independent country that Germany controlled.Operation Barbarossa, the German invasion of Soviet Russia, began in June 1941.
Poland was the first Allied country invaded & defeated by Germany in WW2.
World War 2 started when Germany invaded Poland on September 1, 1939 and then England & France declared War on Germany.
Germany invading Poland, because Germany felt threatened by Jewish population. This was not the first country invaded by the Germans prior to the official outrbreak. They actually invaded the Sudaten lands in Czechoslovakia in 1938, the rest of the world stood by and watched. This then showed Hitler that no country were going to oppose his actions.