For decades, the United States military kept a tight lid on reports of unidentified flying objects. Now, a tranche of declassified files—long pursued by journalists and researchers—offers a rare look into some of the most puzzling encounters of the past eighty years. Among the most intriguing references are those that repeatedly point to Germany, both as a theatre of wartime sightings and as a suspected source of secret technology.
Wartime encounters over German skies
The documents detail reports from Allied aircrew during the final months of the Second World War. Pilots described glowing objects that moved with apparent intelligence, sometimes shadowing their aircraft at close range. One account, from the night of 22 December 1944, involves a crew of the 415th Night Fighter Squadron. According to the file, two lights rose from the ground, climbed to the aircraft's altitude, and held position behind its tail for about two minutes before peeling away—all, the crew noted, under 'complete control'. Ground radar confirmed no enemy aircraft in the vicinity.
Such encounters were not isolated. Over a six-week period, crews flying missions over Germany and France reported red, green, orange, and amber lights that flew in formation, performed evasive manoeuvres, and came as close as thirty metres. The pilots dubbed these phenomena 'Foo Fighters'. The British Air Ministry, after examining the reports, concluded in a secret March 1945 memorandum that 'the whole matter still remains something of an enigma'.
Separately, pilots reported sighting an aluminium cylinder roughly 3.6 metres long at about 2,700 metres. When fired upon, the object partially lost its shape and emitted a red glow, but did not break apart. Intelligence officers speculated it might be a German 'flak bomb', but no definitive explanation was ever provided. The file remained classified for eighty years.
Nazi 'flying discs' and post-war speculation
The released material also includes FBI documents from the 1940s and 1950s that reference alleged German development of disc-shaped aircraft. Some of these reports point to possible secret research projects near Berlin and along the Austrian border. However, these accounts are largely based on informant statements, rumours, and intelligence tips from the immediate post-war period—not on technical assessments or confirmed military files. They reveal more about which leads the authorities chose to pursue than about actual German capabilities.
Historians place many of these stories in the context of speculation about German secret weapons, psychological warfare, and the Allies' scramble to capture advanced Nazi technology. There is no evidence that Nazi Germany ever produced operational 'flying discs' with extraordinary flight performance. The files themselves note the lack of conclusive proof.
Patterns in the sightings
Despite the variety of descriptions—glowing shapes, arrowhead objects, discs—certain patterns recur. Many of the reported craft appear to lack visible wings, rotors, or conventional propulsion. They are said to hover motionless, accelerate abruptly, or perform manoeuvres that defy known aeronautics. Later US Air Force investigations, such as Project Blue Book (1947–1969), documented similar characteristics in a wide range of sightings.
Since the public revelation of the Pentagon's Advanced Aerospace Threat Identification Program (AATIP) in 2017, the United States has expanded its efforts to record and assess so-called Unidentified Anomalous Phenomena (UAP). The Department of Defense has established new reporting structures, and several previously classified videos—including footage from Navy pilots in 2004 and 2015—have been released. In some documents, military personnel report physical symptoms after close encounters, such as nausea, headaches, skin irritation, or neurological effects.
The explanations remain disputed. They range from known technological phenomena and misperceptions to far more speculative hypotheses. What is clear is that the Pentagon's new transparency is being closely watched in Europe, where governments and researchers are increasingly interested in the data. Germany, in particular, has a unique historical connection to these mysteries, both as the site of the earliest sightings and as the alleged birthplace of secret wartime technology.
As the files continue to be analysed, the question of what really happened over Germany in 1944—and what, if anything, was developed in secret labs—remains as open as ever. For now, the enigma endures.
