Spain IIEE Official Investigations — National UAP Documentation
Spain's Ministry of Defence conducted one of Europe's most systematic military UAP investigations, maintaining classified files from the 1960s through the 1990s. Beginning in 1992, Spain became the first NATO member to voluntarily declassify and release its military UAP files. The declassified files include Spanish Air Force pilot reports, radar data, and physical evidence cases. The releases covered approximately 80 cases from 1962–1993.