answersLogoWhite

0

The U.S. entered World War II after the bombing of Pearl Harbor. Before that point in the war, the U.S. was practicing an isolationist philosophy, and just supporting the Allies through other means. However, once the U.S. was attacked, they entered the war and was a main reason why the war was won.

User Avatar

Wiki User

16y ago

What else can I help you with?