Beginning in 1989 - 1990, this triangular shaped UFO was seen by thousands. The Belgian UFO wave peaked with the events of the night of 30/31 March 1990. On that night unknown objects were tracked on radar, chased by two Belgian Air Force F-16's, photographed, and were sighted by an estimated 13,500 people on the ground – 2,600 of whom filed written statements describing in detail what they had seen. Following the incident the Belgian air force released a report detailing the events of that night. Thanks for the information Wikipedia. Please expect 2-3 weeks before delivery. Price includes standard shipping to most countries.