During 1980 Rendlesham Forest in Suffolk is said to have been visited by a UFO. In fact it is one of the best documented encounters lasting four days in total.
The United States Air Force at that time had bases in Bentwater and also Woodbridge. One night during Christmas 1980 security guards at RAF Woodbridge spotted strange lights in the forest of nearby Rendlesham.
They went to investigate and reported that they saw "an object that was described as being metallic in appearance and triangular in shape, approx. 2 - 3 meters across the base, it illuminated the entire forest with a white light, and had a pulsing red light on top and blue lights underneath".
When they returned the next day in daylight they found three depressions in the ground where "the craft" had been seen.
Two days later the UFO was seen again,
and steps were taken to tighten up security around the
bases. No explanation has ever been forthcoming about