This is a really odd question as it assumes that most historians give bogus dates for the start of World War 2 in Europe.
If Hitler took Poland then Britain and France would declare war on him, which they did.
Hitler only came to power in 1933.
you declare war
acutally the only country germany declared war on was the united states no other country only them. why u ask well germany didn't declare war on any other countries because the other countries they were at war with already declared on germany and there was no need to declare war on them
When the Germans violated British neutrality to reach France, Britian declared war on Germany.
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.
The USA did not have to declare war on Germany because Adolf Hitler declared war on the USA.
He didn't. Britain declared war with Germany.
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.
Britain France and the soviet union agreed to declare war against Hitler