On December 26, 1980, strange lights were seen moving through Rendlesham Forest between Bentwaters and Woodbridge.
Twenty-two years ago, on December 26, 1980, shortly after midnight, Sergeant Penniston was asked to investigate strange lights moving through Rendlesham Forest, located between Bentwaters and Woodbridge. He was accompanied by John Burroughs and several other military personnel.
As the security men approached the strange lights—about 300 meters off the main access road in the trees—they could see flashing blue, yellow, red, and white lights…

Testimony
To learn more, watch the following video excerpt (which I translated and subtitled in French) taken from one of the best documentaries on the subject, titled I Know What I Saw.
In this video excerpt, one important detail is unfortunately not mentioned: a camera was used during the event, and 36 black-and-white photos of the UFO were taken. These photos are believed to be classified and stored in secret U.S. government archives. This information was shared during a 2002 interview with Sgt. Penniston.