Answer:
The United States had been attempting to maintain a policy of neutrality leading up to WWII. The country had adopted a policy of neutrality in 1939 in order to avoid entangling itself in the war, as many Americans felt that US involvement would only worsen the situation.
President Roosevelt had also implemented an embargo on the sale of arms to both sides of the conflict, in an effort to avoid US involvement. However, Japan's surprise attack on Pearl Harbor in December 1941 ultimately forced the US to abandon its policy of neutrality and enter the war.
Step-by-step explanation: