The Beginning: November 29, 1989
Between November 1989 and April 1990, Belgium experienced an unprecedented wave of unidentified aerial phenomena reports. The events began on the evening of November 29, 1989, in Eupen, a town approximately seven miles from the German border. According to official accounts, two Belgian federal police officers on routine patrol observed a large triangular craft hovering near a field. The object was described as dark and silent, with bright white lights at each corner and a central red or orange pulsating light.
Testimony from these police officers and other early witnesses described the craft remaining stationary for extended periods, sometimes hovering low enough to illuminate the ground below with its powerful lights. That first night, approximately 143 sightings were reported in the Eupen area, with at least 13 additional witnesses being police officers.
Scale of Reported Sightings
The initial sightings sparked widespread reporting across Belgium. Over the following months, the wave intensified. According to civilian investigation records, over 13,500 people reported sightings during the wave period. The Belgian Society for the Study of Space Phenomena (SOBEPS) documented more than 2,600 written witness statements. These reports came from a cross-section of witnesses, including police officers, military personnel, scientists, and civilians throughout the country.
Witnesses consistently described large, silent, triangular objects. The craft were reported as moving slowly and silently on some occasions, then accelerating rapidly on others. The objects’ behavior, particularly their apparent ability to hover without sound and then move at extreme speeds, drew attention from both the public and official observers.
The Night of March 30-31, 1990
The Belgian UFO wave reached a critical point on the night of March 30-31, 1990. Around 23:00 on March 30, the Control Reporting Center (CRC) at Glons, near Liège, received reports of unusual lights moving toward Thorembais-Gembloux, located southeast of Brussels. Radar facilities at Semmerzake tracked an unidentified object.
The Belgian Air Force scrambled two F-16 fighters from Beauvechain Air Base to investigate. The incident that followed was documented through both ground radar tracking and pilot communications, which were later released publicly.
Radar Data and Military Response
According to the Belgian Air Force records presented in a July 11, 1990 press conference, the radar data from this night showed extraordinary acceleration and altitude change capabilities. The recorded targets exhibited speeds ranging from 280 km/h to 1,800 km/h, accelerations that occurred within minimal time intervals without corresponding sonic booms. The radar also recorded rapid altitude changes, with documented instances of objects descending from 3,000 meters to 1,200 meters in seconds.
Transcripts of radio communications between the F-16 pilots, Captain Yves Meelbergs and Lieutenant Rudy Verrijt, and the Glons Control Reporting Center were released to the public. Over the course of the engagement, the two F-16s attempted nine separate interceptions. The pilots obtained radar lock on unidentified targets on multiple occasions, but crucially, neither pilot reported visual contact with any object throughout the incident.
The Radar Lock Question
The nature of the radar locks obtained during this incident has been subject to analysis. According to military records presented at the July 1990 press conference, three radar locks were achieved during the engagement. Subsequent analysis indicated that these radar locks were on each other, the two F-16s locked onto one another rather than external targets. Ground-based radar systems reported additional radar contacts, though their nature remains disputed among analysts.
The F-16s returned to base after approximately one hour of operations, with the final confirmed radar contact occurring around 00:40. Following additional sporadic and unconfirmed contacts, the engagement concluded shortly after 01:00.
Belgian Air Force Official Position
Major General Wilfried De Brouwer, Chief of Operations of the Belgian Air Force, held a press conference on July 11, 1990, at the Belgian Ministry of Defence in Brussels. De Brouwer presented radar data, computerized radar images obtained from the F-16 onboard radar system, and radio transcripts from the March 30-31 incident. This marked an unusual moment in NATO air force history, a high-ranking military officer publicly presenting military radar data and acknowledging official inability to explain the observed phenomena.
De Brouwer’s position, as stated in multiple official forums, was direct: the Belgian Air Force had no explanation for the objects. In 2007, De Brouwer appeared at the National Press Club in Washington, D.C., where he reiterated that the Belgian Air Force had investigated the phenomena and found no identification. He stated that, in consultation with NATO partners, no stealth aircraft or experimental aircraft flights had taken place in Belgian airspace during the wave period. He further noted that the observed maneuvers, particularly the rapid changes in speed and altitude recorded by radar, were “well outside of the performance envelope of existing aircraft.”
Civilian Investigation: SOBEPS
The Belgian Society for the Study of Space Phenomena (SOBEPS) functioned as the primary civilian investigation body during the wave. SOBEPS had been established in 1971 and had experienced declining membership through the 1980s. The UFO wave of 1989-1990 brought the organization renewed attention and membership, with hundreds of witness testimonies submitted for documentation.
SOBEPS conducted systematic interviews and document collection. Testimony from witnesses included detailed descriptions of the objects’ appearance, movements, and effects. The organization worked in cooperation with the Belgian military, representing an unusual collaborative arrangement between civilian UFO researchers and national defense authorities.
SOBEPS concluded that the phenomena represented a genuine occurrence, with thousands of credible witnesses reporting consistent descriptions across the country. However, the organization did not reach a definitive explanation for the objects’ origin or nature.
Investigative Findings and Explanations
Following the March 1990 incidents, various explanations were proposed. Some researchers suggested atmospheric interference, such as Bragg scattering, could explain certain radar returns. However, the consistency of witness reports, the radar data from military systems, and the documented radar lock events remained without complete explanation.
In 2011, Belgian television program RTL broadcast an interview with Patrick Maréchal, who stated he had constructed a hoax photograph (known as the “Petit-Rechain photo”) in April 1990 to deceive colleagues. This revelation addressed one specific piece of evidence from the later phase of the wave but did not account for the earlier November-December sightings or the March 1990 military radar incidents.
Official Record and Public Disclosure
The Belgian Air Force’s decision to publicly release radar data and military communications was noteworthy. Few NATO nations had taken such transparent action regarding unidentified aerial phenomena. The release of the July 1990 press conference materials, combined with Major General De Brouwer’s subsequent public statements and 2007 testimony at the National Press Club, created a substantial public record of official military acknowledgment.
The Belgian government did not classify the phenomena as a national security threat requiring secrecy, nor did it offer a definitive identification. Instead, it documented the events for public record and acknowledged uncertainty.
Current Status
Approximately 36 years after the wave began, no comprehensive, universally accepted explanation has been established. The phenomena remain unidentified in official records. The case has been cited by UFO researchers, military historians, and scientific commentators as one of the most extensively documented mass sighting events in modern history, distinguished by the involvement of military radar systems, trained pilots, and official military acknowledgment of investigative inability.
The Belgian UFO Wave remains a documented historical event supported by military records, official statements, witness testimony, and civilian investigation reports, a case where conventional explanations have not fully accounted for the totality of reported phenomena.