On 1 May 1945.
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.
No, the Cold War started when Hitler was dead.
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.
Poland
Hitler only came to power in 1933.
June 21st, 1941 was the start of Hitler's Operation Barbossa.
No, Adolf Hitler shot himself dead while in his Berlin bunker in Germany.
Hitler declared war on the USA on 11 December 1941, during a Reichstag speech in Berlin.
They were split into east Germany and west Germany. Rusians were in the east; Americans and British in the west.
Hitler was dead when German surrendered.
Stalin became his allie