Greece's official UAP history begins with the ghost rockets of 1946. On 5 September that year Prime Minister Konstantinos Tsaldaris said projectiles had been seen over Macedonia and Thessaloniki on 1 September, and British Army units in the area reported similar objects. The Greek army gave physicist Paul Santorini, who had worked on the proximity fuze, a team of engineers to investigate what were thought to be Soviet missiles. In a 1967 lecture Santorini said "we soon established that they were not missiles", and he claimed the army halted the inquiry after consulting foreign officials, an account that rests on his own later recollection.

The modern record comes mainly from American files. Three mission reports and their sensor videos, published in the Department of War's first UFO records release on 8 May 2026, describe sightings by U.S. aircraft over and around Greece; their airfield code points to Larissa Air Base in Thessaly, where the U.S. Air Force based MQ-9 Reaper drones in 2018. On 27 October 2023 a crew over the Aegean reported a small, seemingly circular object just above the sea making "multiple 90-degree turns" at about 80 mph (October 2023 report); two days later another operator reported a similar object flying low over the water toward land. On 25 January 2024 a crew in transit reported a "diamond-shaped" object with a probe beneath it, moving at about 434 knots and visible only on a short-wave infrared sensor (January 2024 report).

U.S. Central Command submitted the reports to AARO, and the release labelled all three unresolved. The October 2023 reporters judged the objects benign and not under intelligent control, and the release notes that its written video descriptions are not analytical judgments about what the objects were. No Greek government statement on the reports has been published.

Greece thus holds two distinct official records: a postwar Greek army inquiry known mainly through its chief investigator's later account, and recent U.S. sensor reports from the Aegean that remained unresolved when they were made public in 2026.