Between 1989 and 1990, the skies over Belgium became the center of one of the most astonishing and well-documented UFO phenomena in modern history. Hundreds of people—civilians, police officers, and military personnel alike—reported witnessing large, silent, triangular craft hovering low in the night sky.

Unlike many UFO sightings, the Belgium Wave was not just anecdotal. It sparked official investigations, radar confirmations, and even an attempted interception by the Belgian Air Force. Despite the attention, no conventional explanation has ever fully accounted for what occurred.