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.
“Canberra”11 pages
318 See. et NOFORN Chapter 7 The U-2 program not only provided information on individual Soviet weapons systems, but also helped analysts assess basic Soviet intentions, particularly during crisis situations, as Dulles wrote in May 1960: Whenever the international situation becomes tense because of a problem in some particular area, we are concerned whether the situation might get beyond control-that someone on the other side might suddenly and irrationally unleash big war. ... Our knowledge of Soviet military preparations, however, result ing from the overflight program. has given us an ability to dis count or call the bluffs of the Soviets with confidence. We have been able to conclude that Soviet statements were more rhetori cal than threatening and that our courses of action could be carried through without serious risk of war and without Soviet interference.4 Dulles closed his report on the U-2's accomplishments by put ting the program in perspective as part of the entire national intelli gence effort, noting that "in terms of reliability, of precision, of access to otherwise inaccessible installations, its contribution has been unique. And in the opinion of the military, of the scientists and of the senior officials responsible for our national security it has been, to put it simply. invaluable." The impact of the U-2 overflights on international relations is harder to measure. On the one hand, the intelligence they gathered was a major factor in keeping the United States from beginning a costly and destabilizing arms race in the late 1950s and early 1960s by showing that the Soviet Union was not engaged in major buildups of strategic bombers and intercontinental ballistic missiles. On the other hand, violations of Soviet airspace by U-2s strained relations with Moscow at times and led to the collapse of the 1960 summit meeting. On balance, however, the impact of the U-2 on superpower relations was positive. Without the intelligence gathered by the U-2, the Soviet Cnion's strategic military capabilities would have remained a mystery, making it very difficult for the President to resist pressure from the military, the Congress, and the public to carry out major increases in strategic weapons, which would have poisoned relations with the Soviet Union far more than the small number of overflights did. ' Ibid.. pp. 9- IO (TS Codeword). Seeret
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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.