Americans did not "officially and legally" enter World War 2 until Pearl Harbor was bombed, however the Americans were helping with food, supplies, war materiels, and add ship convoy protection.
The Americans helped the Allies by sending resources to them during WWI.
Well. . . . . . I think the British helped the Americans.
Americans and the British were allies during WWI and helped each other out in order to defeat the central power Germany.
During World War 1, the Lusitania, a civilian boat, was struck by a German U-Boat killing many Americans propelling America on the side of the Allies. The boat was destroyed on May 7th in 1915. During World War 2, the Japanese bombed Pearl Harbor, a major naval base where most of the American Fleet rested causing the Americans to join on the side of the Allies once again.
2 years
USA and Soviet Union.
an allies is a friend the term was used a lot in world war 2 between the british and the Americans
Norway's allies were Britain, and the allies including the U.S.
In 1916-1918, during the first world war; during WW 2 Romania and Germany were allies.
The Allies.
The Netherlands were Allies in World War II.
Technically, neither, but there was always some degree of support for the Allies.. Lend-Lease Programme, oil embargoes directed against Japan, blind eyes being turned to Americans joining foreign militaries to get involved in the war, etc.