John Ford already had multiple Academy Awards to his name when the United States entered World War II - three as Best Director for The Informer, Stagecoach, and The Grapes of Wrath. With the support of the Office of Strategic Services (OSS), the filmmaker, popularly-famed for his work with American Western legend John Wayne, went on to win two more for Best Documentary during the war for his films Battle of Midway and December 7.
Files recently unearthed in the Central Intelligence Agency’s (CIA) CREST database help to illuminate Mr. Ford’s relationship with OSS Director William Donovan and his fellow military fans, who were eager to contribute to the lauded filmmaker’s war effort oeuvre.
https://www.muckrock.com/news/archives/2017/oct/04/john-ford-oss/