because they attacked Pearl Harbor
At the beginning of WW II the US hoped not to get involved. It was only after the US was bombed by Japan, at Pearl Harbor, that the US found that it could not avoid gettting involved.
December 7, 1941
It was The US entered WW I on April 16th, 1917.
Harry Truman was the US president when WW 2 ended. He had been the vice president when President Roosevelt died in office.
20th century: 2nd Balkanic war, WW I, WW II
Franklin Delano Roosevelt.
He was the commander of American forces in Europe in WW 2.
end ww 2
Franklin Roosevelt was the US President when WW 2 started.
Italy, Germany and Japan on one side and USA, UK, France and Spain on the other.
2= N of WW= 2 nations of world war
YesYes. In fact, Dwight Eisenhower was the Supreme Allied Commander during WW II.