Among some of the better documented and investigatable cases that have occurred in the last decade is the rash of UFO sightings which took place over Belgium. Some very poignant factors make this case history extremely rare, with regards to how these cases usually run. Foremost of these determinants is the highly uncommon action of the Belgian government and Air Force, in being very open with their own verifications of the sightings with the public at large. This is the first time that such a sharing of apparently unfiltered military data has been, not only provided, but given over in an earnest attempt to invite public investigation. Beginning in late 1989, a definite UFO "flap" converged on Belgium, with the majority of the sightings occurring in the vicinity of Wallonia. For some time from that point on, literally thousands of people reported seeing triangular aircraft in the Belgian skies, exhibiting flight characteristics which simply cannot be explained, with regard to mundane terrestrial aircraft. Unlike previous flaps, these accounts generated report after report of what, in essence, was exactly the same type of craft. The eyewitness descriptions have been surprisingly similar in the vast majority of these reports. A surprising number of these civilian sightings were confirmed by individuals in the Belgian Air Force, police officers, and air traffic controllers.