YEAR DOSSIER

1990 UAP Cases

Browse every indexed UAP case from 1990. These year landing pages create long-tail search entry points for archive queries tied to specific years and incidents.

1 INCIDENTS · YEAR-BASED ARCHIVE HUB
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State Dept▲ Triangular
CONFIDENTIAL
STATE-004 · 1990-03-30

Belgian UFO Wave — NATO F-16 Pursuit

◎Belgium (Ardennes / Wavre region)

Over 13,500 witnesses reported a large triangular object with bright lights traversing Belgium over 18 months. Belgian Air Force F-16s achieved radar lock on the object twice; it accelerated from 280 mph to 1,100 mph in 2 seconds and descended from 10,000 ft to 1,000 ft in 5 seconds. The Belgian government publicly acknowledged and investigated the sightings. U.S. Embassy Brussels diplomatic cables are included in the 2026 archive release.

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