Matthew Brown
| Matthew Brown | |
| Occupation (as stated) | Former Pentagon contractor and policy analyst |
|---|---|
| Education (as stated) | BA, international affairs |
| Known for | |
| Report | Author of the Immaculate Constellation report, introduced publicly April 29, 2025 |
| Claim | Saw an Immaculate Constellation briefing in a folder labeled “2018 Schriever Wargame” |
| Public statements | Substack; interviews with Corbell and Knapp |
| Later | Asked President Trump on Aug 17, 2026 to release him from nondisclosure obligations |
| Status | Self-identified whistleblower; unverified |
Matthew Brown is an American who publicly identified himself in April 2025 as the author of the report on Immaculate Constellation, an alleged unacknowledged Pentagon UAP program. The report was brought to Congress by journalist Michael Shellenberger and entered into the record of a November 2024 hearing without naming its author [1].
Brown says he saw an Immaculate Constellation briefing on a Pentagon computer server in 2018. His employment, the file he describes, and the program itself have not been independently verified, and the Department of Defense says it has no record of any such program [1][3].
Background (as stated by Brown)
Brown’s biography comes almost entirely from his own statements. According to unofficial summaries of his April 2025 interview, he has a bachelor’s degree in international affairs, worked at a Washington think tank and then in national-security roles as a contractor, and briefly worked in the office of the Under Secretary of Defense for Intelligence; he said he began, but did not complete, a master’s degree thesis in security policy [2]. A separate account says that in 2018 he was a contractor and policy analyst in the Office of the Secretary of Defense [1]. Metabunk participants who reviewed the interview found no public verification of his employer, job title or clearance [2].
The Immaculate Constellation report
Brown says that in 2018, while sorting misplaced files on a shared Office of the Secretary of Defense server, he found a presentation of roughly 12 to 15 slides under a folder labeled “2018 Schriever Wargame.” He describes it as an Immaculate Constellation briefing without special access program markings, saying it described a program created after AATIP was exposed in 2017 and included a slide on a large black triangle seen near Russian intelligence vessels off Kamchatka [1]. He says a supervisor told him to delete the file and that it later vanished [1].
The report attributed to him is described as a later synthesis, not the 2018 deck itself [1]. According to a quotation from Jeremy Corbell‘s video description on Metabunk, the report reached Congress through Shellenberger months before the November 2024 hearing [2]. A 12-page report was entered into the hearing record on November 13, 2024 [1]. Brown said in the interview that the file’s purpose was never fully spelled out and that slides were probably missing, according to a forum transcription [2].
Public statements
Brown was introduced on April 29, 2025 in the “WEAPONIZED” interview series by Corbell and George Knapp [4]. He publishes a Substack, saying he does so free of charge to advance disclosure [4]. On August 17, 2026 he publicly asked President Donald Trump to release him from “all relevant secrecy and nondisclosure obligations,” saying he had more to disclose and cited secrecy agreements and active threats as reasons for holding back; Cybernews reported that the Department of War denied the program exists [5]. Cybernews also reported that Brown said he gave details to members of the Senate and House in 2023 [5].
Skepticism
On May 2, 2025 Jason Colavito wrote that Brown had probably mistaken fictional wargame documents for secret UFO revelations, noting that the Schriever Wargame is a long-running, publicly acknowledged exercise [6]. A professional wargamer, Kevin Williamson, wrote on LinkedIn on May 1, 2025 that wargame materials can look like intelligence products to people unfamiliar with the format, according to Anomaly Archives [4]. A secondary analysis notes that the wargame explanation narrows the question but cannot prove the deck was fictional, since a real briefing could in principle have been misfiled [1]. A Space Force spokesperson was reportedly quoted as saying the term was not part of the 2018 exercise [1]. See Schriever Wargame file claim.
Assessment
Documented: Brown came forward publicly on April 29, 2025, and the 2018 Schriever Wargame took place [4][7]. Unverified: his employment details, the existence and content of the file, the instruction to delete it, and the program itself. No copy, metadata or access record has been published, and the account is based on memory of an event about seven years earlier [1][2].
See also
- Immaculate Constellation
- Schriever Wargame file claim
- Michael Shellenberger
- Jeremy Corbell
- George Knapp
- November 2024 House Oversight UAP hearing
- David Grusch Testimony
- Mick West
References
- ^ “The Schriever File: Immaculate Constellation or Wargame Scenario?” The Galactic Mind. thegalacticmind.com
- ^ “Matthew Brown: Immaculate Constellation Report Author/Whistleblower,” Metabunk forum thread, April 29 to May 14, 2025. metabunk.org
- ^ Straight Arrow News, “Secret Pentagon UFO program allegedly operating without Congress’ knowledge,” October 9, 2024. san.com
- ^ “Brown, Matthew – alleged Immaculate Constellation whistle blower,” Anomaly Archives. anomalyarchives.org
- ^ “Matthew Brown asks Trump for immunity to reveal more UAP secrets,” Cybernews, August 2026. cybernews.com
- ^ Jason Colavito, “Misinformation Abounds in a Busy Week for Government UFO Fantasies,” May 2, 2025. jasoncolavito.com
- ^ “Air Force Space Command Conducts Schriever Wargame 2018,” GPS World, October 11, 2018. gpsworld.com