Documents / Official release
This is a Secret History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach of the Central Intelligence Agency, published in 1992. It gives a history of the CIA's manned overhead reconnaissance program from 1954 to 1974, covering the development and operation of the U-2 and the A-12 OXCART aircraft. It covers overflights of the Soviet Union, the 1960 downing of Francis Gary Powers, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
From the source:Release of 2026-06-12 This CIA History Staff document chronicles the complete history of the U-2 and OXCART (A-12) high-altitude reconnaissance aircraft programs from 1954 to 1974, detailing their development, operations over the Soviet Union and other targets worldwide, the famous downing of Francis Gary Powers in 1960, organizational reforms following that incident, and the eventual transfer of operations from CIA to Air Force control. A more redacted version of this document has been available on CIA's public website.
“US Navy”15 pages
159 The Final Overflights of Geern·t NOf'OHN Chapter 4 _ the Soviet Union, 1959-1960 THE U-2 AND THE "MISSILE-GAP" DEBATE Despite President Eisenhower's reluctance to send U-2s over the Soviet Bloc, he once again authorized overflights in the summer of 1959, after a pause of more than a year. The overriding factor in his decision was the growing '• missile-gap" controversy. which had its •roots in a series of dramatic Soviet announcements during the second half of 1957. The first announcement revealed the successful test of an intercontinental ballistic missile in August. Then in October, the Soviets announced the successful orbiting of the world's first artificial earth satellite, Sputnik. One month later the Soviets orbited a second satellite containing a dog and a television camera. To many Americans, including some influential members of Congress, the Soviet Union's space successes seemed to indicate that its missile program was ahead of that of the United States. By the spring of 1958, after the United States had successfully launched several satel lites, fears of a space technology gap between the two superpowers had eased. By the end of the year, however, new concerns arose that the Soviet Union was producing a missile arsenal that would be much larger than that of the United States. This was the famous missile gap that received widespread publicity beginning in early 1959.1 The missile-gap controversy was fueled by Soviet boasts about the success of their missile program. On 4 December 1958. a Soviet delegate to the Geneva Conference on Surprise Attack stated: "Soviet ICBMs are at present in mass production." Five days later, Soviet ' For an overview of tht: controversy. see Roy E. Licklider. "The Missile Gap Controversy." Political SL'ience Quanerly 85 ( I 970):600-6 l 5. Secact
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Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. 406 pages are in the text index: search them above, or from the library's search.