Question

Why did President Roosevelt believe it was necessary for the U.S. to be involved in WWII?

Answer 1

Answer:Isolationists believed that World War II was ultimately a dispute between foreign nations and that the United States had no good reason to get involved. The best policy, they claimed, was for the United States to build up its own defenses and avoid antagonizing either side.

Explanation:

Answer 2

Because after China attacked Pearl Harbor he believed that he should fight back