Event Description
Non-Human Intelligence (NHI)
No NHI encounter documented for this event.
In 1947, the Greek Air Force and Navy launched a formal investigation into a series of UFO sightings concentrated around the island of Santorini and the broader Aegean region. The investigation was led by Air Marshal Konstantinos Skaltsounis and produced a classified report that documented multiple incidents involving unidentified craft observed by both military and civilian witnesses. The resulting report, suppressed for decades by Greek authorities, eventually became one of the earliest known official military UFO investigations in European history.
The Santorini sightings occurred in the same year as the American Kenneth Arnold sighting and the Roswell incident, placing them within the first major wave of post-World War II UAP reports. Greece at this period was in the midst of a civil war, and its military was keenly alert to any aircraft activity — meaning military witnesses were operating at heightened alertness and were experienced in identifying conventional aircraft from both Allied and Soviet inventories.
Multiple witnesses including Navy personnel observed disc-shaped or oval objects moving over the Aegean waters at speeds and altitudes inconsistent with the aircraft of any nation. The objects were described as highly reflective, operating silently, and performing maneuvers — including rapid altitude changes and course reversals — that contemporary aircraft could not duplicate. Several incidents involved objects observed simultaneously from multiple positions, providing the kind of cross-corroboration that rules out single-witness misidentification.
Air Marshal Skaltsounis's investigation concluded that the objects were real, unidentified, and not attributable to any known human aviation program. The classified report documented the investigation methodology and witness statements in detail. When it was eventually declassified and became accessible to researchers, it provided a rare example of a formal, senior-officer-led European military UAP investigation from the critical 1947 period.
The Greek government's decision to classify the Skaltsounis report rather than dismiss the sightings publicly is itself significant — it suggests that Greek military authorities considered the phenomenon serious enough to warrant classified treatment, consistent with the posture taken by American and British military authorities examining the same phenomenon during the same period.