Why did America fight Hitler in world war 2?

Answer 1

Hitler made the decision for the U.S. by declaring war on America (jointly with Mussolini's Facist Italy) on December 11, 1941 - 4 days after the Japanese bombed Pearl Harbor.

Why did Hitler declare war on the Americans? It could have been that he was over indulging in fulfilling his obligations to the Tripartite Pact that required military assistance versus any nation that attacked a signator (Japan, Germany, and Italy being the signers). But, America did not attack Japan, it was the other way around.

It could also have been that Hitler thought it was a way to get the Japanese to come into the war versus the Soviets. By December 11, 1941, the Germans were just starting to have setbacks in the attacks on Moscow and on December 5th, they had called off the attack. Although supremely confident in his victory, Hitler may have been trying to hedge his bets.

In America, FDR was all for declaring war on Germany (he had been waging an undeclared limited war against the Germans for some time with materials and anti-sub escorts for British cargo ships), however Congress was not. Even after Pearl Harbor, it took Hitler's declaration of war to get the Congress to act and declare war in return.

Answer 2

Great Britain really needed the help, but it was Germany who formally declared war on the US first, because the US had declared war on Japan, following the disastrous event: Pearl Harbor. It's was kind of a chain reaction because within a couple days, the Allies had all formally declared war on every country in the Axis Powers and the Axis Powers did accordingly.

Answer 3

we got pulled into WWII because of the attack on pearl harbor.

Answer 4

Because the USA were against the Soviet Union (USSR/Russia) and Germany (Hitler) was fighting them.

Answer 5

The japanese bombed Pearl Harbor.