China
Poland was invaded by Germany just before the war was declared.
Japan, bro. Japan declared war on America not Germany. Canada declared war on Germany on the 10th of September.
europe
No country. After Japan bombed Pearl Harbor the US declared war on Japan. Within days Germany declared war on the US because they had an agreement with Japan.
Italy
The US .
Germany
Germany invaded Poland and as a result France and England declared war on Germany.
Germany declared war on the US, the US then declared war on Germany.
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
Poland
Britain.