Because,Holland was either a Ally or Neutal country which was in Germanys way to get near the french border/English channel
Hitler threatened to declare war on Czechoslovakia because the Czech government declared martial law.
1941
If Hitler took Poland then Britain and France would declare war on him, which they did.
No. Hitler just launched an invasion without an official declaration of war.
Holland had become an important source of supplies for the American war effort (Holland was a significant source of supplies to the Patriots).
He didn't. Britain declared war with Germany.
The USA did not have to declare war on Germany because Adolf Hitler declared war on the USA.
The 11 of December 1941.
1987
No we declared war on japan then Hitler declared war on us all after pearl harbor
No. Hitler had a Pact with the Soviet Union that split Poland between them. The invasion of Poland lead Britain and France to declare war on Germany. The Soviets entered the war when Hitler invaded Russia.
Hitler declared war on the USA on 11 December 1941, during a Reichstag speech in Berlin.