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Fact check

Is it true: Pearl Harbor Foreknowledge?

Unsubstantiated70% confidence

There's no solid evidence for it.

There is no authenticated evidence that Roosevelt or his advisers knew Pearl Harbor was the target and withheld warning to bring the United States into the war. Intercepted cables showed war was coming but pointed most strongly toward Southeast Asia and the Philippines, and the official investigations documented serious intelligence failures, not deliberate withholding.

The claim

Claims that US officials had specific foreknowledge of the Pearl Harbor attack and allowed it to happen to enter World War II.

Key evidence

The McCollum Memo proposed actions to provoke Japan into war

Wohlstetter's definitive analysis attributes failure to intelligence noise, not deliberate withholding

Read the full evidence file

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