American public opinion was hostile to the Axis, but how much aid to give the Allies was controversial. The United States returned to its typical isolationist foreign policy after the See more

On 11 December 1941, three days after the United States declared war on Japan, Germany declared war on the U.S.. Italy also declared war on the U.S. the same day. That same day, the United States, in its turn, declared war on Germany and Italy. See more

The United States contributed several forces to the China Burma India theater, such as the 5307th Composite Unit (Provisional) but nicknamed "Merrill's Marauders" after its commander, Frank Merrill. It was a United States Army long range penetration See more

• Amerika Bomber
• Project Z
• Operation PX See more

Without American production, the United Nations could never have won the war.
The year 1940 marked a change in attitude in the United States. … See more

The Attack on Pearl Harbor
Because of Japanese advances in French Indochina and China, the United States, in coordination with the … See more

Although the Axis powers never launched a full-scale invasion of the United States, there were attacks and acts of sabotage on U.S. soil.
• December 7, 1941 – Attack on Pearl Harbor, a surprise attack that killed almost 2,500 people in the … See more