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Answer:
But the neutral USA entered World War II only after many months of argument in Congress and among the general public, and only when a Japanese fleet launched a big surprise air raid against its Pacific naval base at Pearl Harbor in Hawaii on 7 December 1941.
Explanation:
Hope this helps?
Containment is the policy.
Some examples are the Stamp Act and they also started putting taxes on sugar and oil. The war that started this was the French and Indian War because after their victory the English were in debt.