Unidentified Flying Objects and Air Force Project Blue Book
https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104590/unidentified-flying-objects-and-air-force-project-blue-book/
WebOf a total of 12,618 sightings reported to Project Blue, From 1947 to 1969, the Air Force investigated Unidentified Flying Objects under Project Blue Book. The project, headquartered at Wright-Patterson Air Force Base, Ohio, was terminated Dec. 17, 1969.
DA: 70 PA: 62 MOZ Rank: 43