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Office of the Secretary of Defense: 05_AARO_Historical_Record_Report

Department of Defense. Office of the Secretary of Defense. · 2023 · 63 pages · text from the file's own layer

This is Volume I of the Historical Record Report from the Department of Defense's All-domain Anomaly Resolution Office (AARO), dated February 2024 and released in full in February 2025. It reviews US government UAP investigations since 1945, from Project SIGN and Blue Book through the Condon Report, AATIP and the UAP Task Force. AARO found no evidence that any sighting involved extraterrestrial technology or that anyone reverse-engineered alien craft. It says the claims come largely from circular reporting, and it names KONA BLUE as a proposed program that was never approved.

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vast majority of cases report on events that amount to ordinary objects, atmospheric
and natural phenomena, and observer misidentification.
• Although many UAP/UFO cases remain unsolved, based on the lack of evidence of
the extraterrestrial origin of even one UAP report and the assessment that all resolved
cases to date have ordinary explanations, AARO assess sightings and claims of
extraterrestrial visitations have been influenced by a range of factors.
Commonalities of 20th and 21st Century UAP Investigations
International Security Environment and Technological Surprise
In both periods, changes in the international order brought uncertainty. Concern about
the Soviet Union’s desire for regional hegemony and military and political superiority
contributed to U.S. involvement with conflicts in Korea, Vietnam, and elsewhere, sparked a
boom in U.S. technological innovation, and led to widespread fear within society about Soviet
capabilities and intentions.
One primary means of competing with the Soviet Union was to collect intelligence on
Soviet leadership intentions and military capabilities. The means by which the U.S.
accomplished this goal was to develop a range of air- and space-based reconnaissance systems to
collect an array of intelligence on the Soviet Union—especially over its territory. During some
early UFO investigation efforts, it was deemed essential to determine if UFOs were Soviet
“secret weapons” or psychological warfare operations aimed at causing public fear and
generating hysteria to undermine U.S. societal morale.
Today’s global security environment is similarly dynamic. Both the Russian Federation
and the PRC seek to alter the international system at the expense of the security of the United
States. AARO recognizes that concern with competitor technological surprise is still a real and
legitimate driver of UAP investigations today. It is imperative to determine whether or not these
sightings represent a risk to flight safety, and whether these sightings represent technological
advances that could pose counterintelligence and national security threats.
Secrecy
The USG’s need to maintain secrecy to protect classified information about intelligence
sources and methods, military operations and technology, and U.S. vulnerabilities is also a
shared context among all UAP investigations. While secrecy is essential to protect U.S. national
security interests, it can reduce the public’s trust in government. With a gap in information about
UFO/UAP investigations, other information sources and narratives, including private UFO
investigative organizations and “UFOlogy” emerged to fill that gap. AARO assesses that the
classification of prior USG investigations have fueled speculation that the government was
hiding knowledge of extraterrestrials, when, in fact, secrecy was and still is intended to
deliberately and thoughtfully protect sensitive military and intelligence community programs,
capabilities, sources, and methods.05Page determined to be Unclassified
Review by Chief of Staff, AARO
IAW FY24 NDAA, Section 1841 (a)(1)(C)
Date: 02/05/2025

Cases discussed

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Official release, from the nara collection. The PDF is mirrored here; the original link is above. 63 pages are in the text index: search them above, or from the library's search.