Case No. 324·Spain
1976·Talavera la Real Air Base (Ala 23), Badajoz, Extremadura, Spain
Spain.Talavera la Real · the 'Green Man' (1976)
In the early hours of 12 November 1976, two conscript sentries in the fuel area of Talavera la Real Air Base (Badajoz, Spain) reported interference, a high-pitched whistle, a partial blackout and an agitated military dog. One of them, José María Trejo, described a humanoid figure some three meters tall formed by points of green light, with long arms and no hands or feet, before losing consciousness; his companions opened fire on the apparition, which vanished. The Spanish Air Force opened a file that the Ministry of Defense declassified in the 1990s. The documentation confirms a real alarm occurred, but does not conclusively support the presence of an object or a being; the strongest reading points to perceptual disturbance and contagious hysteria during a night watch.
Year
1976
Tier
A
Probability
20%
Category
Incident
Institutional evidence: multiple verifiable witnesses or official documentation. Three independent axes: the «tier» measures the strength of the evidence; the «probability» estimates how genuinely unexplained the case is —a natural phenomenon can remain unexplained, so it does not equal «non-prosaic»—; and the partition of explanations (below) says what it most plausibly was. So a well-documented case can have a possible hoax as its most plausible cause, and a Tier B is not, for that reason, a hoax.
Primary documents · viewer

Context · Talavera la Real (Badajoz, Spain)
Base Aerea - Talavera la Real.JPG · Wikimedia Commons · CC BY-SA 3.0 · open original
Part 01
The night in question
In the early hours of 12 November 1976, at Talavera la Real Air Base (Badajoz, Extremadura), two conscript soldiers —José María Trejo and Juan Carrizosa Luján— stood the night watch in the fuel area, each in his own sentry box, about sixty meters apart. According to the testimonies gathered afterward, the sequence began with an anomalous noise, first comparable to radio interference and then to a high-pitched whistle that lasted several minutes, accompanied by a partial blackout of the perimeter lighting and interference in communications. A unit military dog became intensely agitated.
In that tense context, Trejo described seeing to his left a large figure —close to three meters tall—, apparently formed by small points of green light, with arms of anomalous proportions and no defined hands or feet. The soldier lost consciousness. His companions, alarmed, opened fire with their service weapons in the direction of the apparition, which —by the account— vanished immediately afterward. Several members of the detachment stated they had perceived a light or a luminous silhouette by the base fence.
The episode did not remain a barracks anecdote: it was the subject of an internal report and investigation by the Air Force, which opened a formal file under the heading of a sighting of strange phenomena at the base. Decades later, during the declassification of the 'UFO files' carried out by the Spanish Ministry of Defense in the 1990s, that file was made public and can today be consulted in the Virtual Library of Defense. The official documentation confirms that a real alarm occurred that morning —there were gunshots, a report and military witnesses—, but it does not establish what caused it, nor does it conclusively support the presence of an object or an unknown being inside the installation.
Part 02
Why this case moved the needle
Talavera la Real is one of the most cited Spanish cases precisely because of its mixed nature: an extraordinary close-encounter account wrapped in a real institutional chain of custody. That combination is rare and valuable for the corpus. What is instructive is not the three-meter figure of green light, but the distance between two facts that are often confused: the existence of a declassified military file does not mean the Air Force validated an anomalous phenomenon; it means there was an alarm that the chain of command deemed worth recording.
The strongest analysis points to a mundane explanation of psychological root. Juan Ballester Olmos —a researcher who took part in the declassification of the files themselves— holds that what happened is compatible with an episode of perceptual disturbance in a sentry that, combined with fear, suggestion and contagious hysteria among young recruits in the dead of night, degenerated into the reported account. The isolated night watch, the loaded weapons, the tension of a military base in late-Franco Spain, and the absence of any conclusive physical evidence —no trace, no photograph, no radar contact— all fit that picture.
That is why the case lives in the corpus with high documentary weight but a low probability of anomaly: the file gives it traceability, while the internal evidence —a sentry's testimony, with no instrumental corroboration— is weak. It is a textbook example of why 'documented by a military' and 'unexplained' are not synonyms for 'non-human,' and of how an episode of perception and suggestion can be fixed forever in an official archive.
Part 03
What's left on paper
Documented evidence
- Spanish Air Force UFO file on the sighting of strange phenomena at Talavera la Real air base, declassified in the 1990s (Virtual Library of Defense)
- Two conscript sentries in the fuel area (José María Trejo and Juan Carrizosa Luján), sentry boxes ~60 m apart
- Reported sequence: radio interference / high-pitched whistle, partial perimeter blackout, agitated military dog, gunfire with service weapons
- Humanoid description: ~3 m tall, points of green light, long arms with no hands or feet; Trejo lost consciousness
- No conclusive physical evidence: no material trace, no photograph, no radar contact
- Skeptical reading (J. Ballester Olmos): a sentry's perceptual disturbance + contagious hysteria among recruits
Sources
- Biblioteca Virtual de Defensa — Expediente OVNI, avistamiento en la base aérea de Talavera la Real (Ejército del Aire, desclasificado) — Primary source: the official file declassified by the Ministry of Defence.
- Extremadura Misteriosa — «El Hombre Verde de Talavera la Real»
- Planvex — «José Manuel Trejo, principal testigo del caso OVNI de Talavera la Real» (2017)
Patterns it exhibits (2)
Entity form (1)
Location
Talavera la Real Air Base (Ala 23), Badajoz, Extremadura, Spain · 38.89°, -6.81°
Distribution of explanations
This case is classified among the model's hypotheses: the bar splits 100% by how much each explanation weighs (the uncertainty is spread across the hypotheses the case supports). Summed across the corpus they produce the comparable partition. It is a different question from the Probability above: that one estimates how likely the case is a genuinely unexplained phenomenon; this one splits which the explanation would be.
Modal hypothesis: Misidentification 77% · sums to 100%
Confused with: No single object identified
Structured analytical judgment, not a calibrated frequency. Forced classification: the mass the evidence cannot assign is spread across the hypotheses the case does support.
Related cases
Associated actors (1)