Section B · FAU Colonel · president of CRIDOVNI
Ariel Sánchez Ríos
Colonel (Naval Aviator, ret.) of the Uruguayan Air Force · president of CRIDOVNI (since 2008)
Biography
Colonel (naval aviator, retired) of the Uruguayan Air Force and, since 2008, president of CRIDOVNI (Commission for Receiving and Investigating Reports of Unidentified Flying Objects), the world's longest continuously running government UAP commission —active without interruption since 1979—. He is its public face and institutional voice: he advocates a methodological, air-sovereignty approach, and under his leadership CRIDOVNI has investigated more than 1,500 reports, of which about 3% are classified as 'non-conventional'. According to the commission itself, during his tenure the Uruguayan Air Force reached a preliminary cooperation agreement with the United States' AARO; no published US document confirms it. What is on record, in AARO emails obtained through FOIA (case 26-F-1773, published by The Black Vault in 2026), is that two CRIDOVNI representatives, their names redacted, attended AARO's UAP data workshop in August 2025 and met the office at the Pentagon on 4 August, with an hour set aside for 'future collaboration'. In those emails the Uruguayan delegation writes that it wants 'to establish a further working relationship' with AARO, and the office says it also invited Chile's SEFAA, which did not reply.
Documents
CRIDOVNI · FAU commission
CRIDOVNI (Commission for the Reception and Investigation of Reports of Unidentified Flying Objects) is the commission the Uruguayan Air Force created on 7 August 1979, under the Ministry of National Defence, and which has operated without interruption ever since. It receives reports, investigates them with military resources (radar, controllers, checks against known traffic and weather data) and classifies them, with an explicit category for "non-conventional" cases. According to the commission's own figures as reported by the Uruguayan press, of some 1,570 reports between 1979 and 2021, 47 (about 3%) ended up in that category; the rest received a conventional explanation. The commission makes no statement on the nature of the phenomenon, and its cooperation with the US AARO stands only as reported.
AARO FOIA records 26-F-1773 · UAP data workshop and meeting with CRIDOVNI (August 2025)
A 92-page PDF AARO released through FOIA to The Black Vault (case 26-F-1773, requested 17 March 2026). It contains the emails in which the office arranges the trip of two CRIDOVNI representatives, the agenda of the 4 August 2025 meeting at the Pentagon (CRIDOVNI briefing, AARO briefing and an hour on 'future collaboration') and the workshop attendee list, which shows 'CRIDOVNI (Uruguay)' twice and an 'Australian Government'. Names are redacted and 19 pages were withheld in full. It contains no signed cooperation agreement. A US government document; The Black Vault's copy is linked.
All-domain Anomaly Resolution Office (AARO), vía The Black Vault · view source
Why they're here · 3 pieces
- 2008
Presidencia de la CRIDOVNI
Leads the Uruguayan official commission with a methodological approach and institutional continuity
- 2023
Acuerdo de cooperación FAU–AARO
Preliminary agreement with the US UAP office, according to the commission itself (no published US document)
- 2025
Reunión CRIDOVNI–AARO en el Pentágono y taller de datos UAP
Two CRIDOVNI representatives brief AARO on 4 August and attend the 5–6 August workshop (FOIA records 26-F-1773)
Sources
- Segurilatam — interview with Colonel Ariel Sánchez Ríos (CRIDOVNI)
- Uruguayan Air Force — CRIDOVNI
- FAU — 40 años de CRIDOVNI
- AARO — FOIA records 26-F-1773 on the August 2025 UAP data workshop (The Black Vault, 2026) — AARO emails with the CRIDOVNI delegation (PDF pp. 12-17) and the workshop attendee list (p. 39); names redacted.
Contributes a theoretical framework, with no specific case in the archive.
Biography summarized from public sources, classified by section (A-F).