Two Nights
The Rendlesham Forest incident unfolded across two separate nights at the end of December 1980, just outside RAF Woodbridge in Suffolk, England. The base was operated by the United States Air Force as part of NATO's Cold War presence in Europe. The 81st Tactical Fighter Wing was stationed there.
What makes this case unusual is not just the sighting itself but the documentation. A deputy base commander filed an official memorandum to the UK Ministry of Defence. He brought a tape recorder into the forest. And more than forty years later, the principal witnesses have never recanted their core accounts.
Night One: December 26, 1980
Around 3:00 AM on December 26, a security patrol near the East Gate of RAF Woodbridge reported strange lights apparently descending into Rendlesham Forest, the dense pine woodland that lay between Woodbridge and its companion base, RAF Bentwaters. The initial assumption was a downed aircraft.
Sergeant Jim Penniston and Airman First Class John Burroughs were dispatched to investigate, accompanied by Airman Ed Cabansag. What they found was not a crashed airplane.
What Penniston Reported
In his surviving early statement, Penniston described an object he believed was mechanical in nature and made drawings of what he saw. In later accounts, he described a much closer encounter: a small triangular craft, approximately nine feet across, with a smooth dark surface and unusual markings. He said he approached it, circled it, touched its surface, and watched it depart rapidly through the trees.
Burroughs corroborated the presence of unusual lights and the pursuit into the forest, but his early statement did not independently reproduce Penniston's later close-contact details. Penniston later said he underwent repeated military and AFOSI debriefings after the incident.
Animals on a nearby farm were reported to have gone into a frenzy during the encounter.
The next morning, three depressions were documented in the ground in a roughly triangular arrangement. Base personnel treated them as possible landing marks; skeptics later argued they could have been ordinary ground or animal disturbances.
Night Two: December 27–28, 1980
The following night, reports of lights in the forest resumed. This time, Lieutenant Colonel Charles Halt — the deputy base commander of RAF Bentwaters — decided to investigate personally. Halt was known as a pragmatic, no-nonsense officer. He went into the forest intending to debunk the claims from the previous night.
He brought a tape recorder.
The Halt Tape
The eighteen-minute audio recording captures Halt and his team moving through the forest, taking radiation readings, examining the ground depressions, and observing anomalous lights. Halt can be heard describing lights moving through the trees, a flashing red light that appeared to drip something, and beams of light that seemed to come down from the sky into the field near the forest's edge.
The tape was later released publicly. It remains one of the only audio recordings made by a military officer during an active UAP encounter.
Listen: The Halt Tape — December 28, 1980
Lt. Col. Charles Halt's field recording from Rendlesham Forest. Public domain via Wikimedia Commons.
Halt's team measured radiation levels at the site of the ground depressions. According to their readings, the levels were elevated above normal background. The significance of these readings has been debated — some analysts have argued the levels fell within the normal range for the area, while others maintain they were notably higher at the precise points of the depressions.
An official memo. An audio recording. Ground impressions. Radiation readings.
This is not a story told from memory decades later. It was documented in real time.
The Halt Memo
On January 13, 1981 — approximately two weeks after the events — Lieutenant Colonel Halt wrote an official memorandum addressed to the UK Ministry of Defence, titled "Unexplained Lights." The memo described the sightings across both nights, the physical evidence found at the landing site, the radiation readings, and the anomalous lights observed during his own investigation.
The memo was released to the public through a U.S. Freedom of Information Act request in 1983. It has since been recognized as one of the most significant official documents in UAP research — a serving deputy base commander, at a NATO installation, formally reporting an encounter with an unidentified object to a foreign government's defense ministry.
Halt later signed a sworn affidavit in 2010 reaffirming his account and stating that the events were real and unexplained.
The Aftermath
The UK Ministry of Defence investigated and concluded that the events posed "no defence significance." The case was filed. No further official action was taken.
MoD files relating to the Rendlesham incident were released in stages through the UK National Archives between 2001 and 2009. They confirm the official correspondence, the Halt memo, and the Ministry's position that the matter was not considered a threat.
Burroughs later received VA disability benefits after a long dispute over service-connected medical problems. Burroughs and his advocates have said the award was tied to injuries arising from the Rendlesham incident. The full VA adjudication and underlying medical records have not been made public.
Penniston, Burroughs, and former MoD UFO desk officer Nick Pope co-authored Encounter in Rendlesham Forest in 2014, providing their detailed account of the events.
Read: Encounter in Rendlesham Forest →The Skeptical Case
The Orford Ness lighthouse. Five miles to the east of the forest, along the same line of sight as the reported lights, stands the Orford Ness lighthouse. Skeptics, most notably astronomer Ian Ridpath, have argued that the flashing light observed by the airmen was the lighthouse beam, visible through the trees and unfamiliar to American personnel who had not been stationed at the base long. The lighthouse has a five-second rotation cycle. Some of the described light behavior is consistent with this interpretation.
The meteor. A bright fireball was recorded over southern England around the same time as the initial sighting on December 26. Astronomers have suggested this may have been the descending light that first drew the attention of the security patrol.
The ground impressions. Some investigators have suggested the depressions found at the site were consistent with rabbit diggings or existing ground features rather than landing gear. The triangular arrangement has been questioned as potentially coincidental.
The radiation readings. The significance of Halt's radiation measurements has been disputed. Some analysts argue the recorded levels, while slightly elevated, were within the normal background range for the area and did not necessarily indicate an anomalous source.
Each of these explanations addresses a component of the incident. None of them, individually or together, has been universally accepted as a complete explanation for the full sequence of events across both nights.
What We Know and What We Don't
Over two nights in December 1980, multiple U.S. Air Force personnel at a NATO base in England reported encounters with an unidentified object in the adjacent forest. The witnesses included a deputy base commander who documented the events in an official memorandum, made an audio recording during his investigation, and later reaffirmed his account under oath.
Physical evidence was reported: ground impressions in a triangular pattern and radiation readings at the site. The primary witnesses — Penniston, Burroughs, and Halt — have continued for decades to insist that what they encountered was real and unexplained.
The Ministry of Defence concluded the events had no defence significance. The lighthouse, the meteor, and the ground features may explain parts of what was observed. But the witnesses say there was a craft. Penniston says he touched it. Halt says he watched unexplained lights maneuver over the forest and base. More than forty years later, neither man considers the incident explained.
Rendlesham Forest is the rare UAP case that comes with paperwork. An official memo. An audio recording. Ground evidence. Radiation readings. And a deputy base commander who went into the forest to investigate the story, came out convinced something unexplained had occurred, maintained that position for decades, and eventually reaffirmed it in a sworn affidavit.
The Ministry of Defence said it had no defence significance. The witnesses say otherwise. The tape recorder was running.