The Pearl Harbor advance-knowledge debate is a dispute over what, if any, advance knowledge American officials had of Japan’s December 7, 1941 attack on Pearl Harbor.

Several writers, including journalist Robert Stinnett and former United States Navy Rear Admiral Robert A. Theobald, have argued that various parties high in the U.S. and British governments knew of the attack in advance and may even have let it happen or encouraged it in order to force America into war via the “back door.” Evidence supporting this view is taken from quotations and source documents from the time and the release of newer materials.

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