Why did the United States enter World War II? Germany had unleashed unrestricted submarine warfare against the American merchant ships. The United States was attacked at Pearl Harbor, Hawaii, by Japan.

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asked Apr 20, 2022 29.3k views

6 votes

Why did the United States enter World War II?

Germany had unleashed unrestricted submarine warfare against the American merchant ships.

The United States was attacked at Pearl Harbor, Hawaii, by Japan.

American leaders feared that Iraq’s dictator was hiding weapons of mass destruction.

The United States came to the defense of its ally, the Soviet Union.