Robert O. Dean

Command Sergeant Major Robert Orel Dean served 27 years in the US Army with a Top Secret/Cosmic clearance. While stationed at SHAPE (Supreme Headquarters Allied Powers Europe) in Paris from 1963-1967, he claims he read a classified NATO document designated 'The Assessment' — an in-depth study concluding that Earth was being visited by at least four extraterrestrial civilizations and that they posed no military threat. The Assessment was reportedly classified above Top Secret. Dean went public after retirement in the 1990s. His NATO service record at SHAPE is verified. He spoke publicly until his death in 2018, maintaining consistent accounts across decades of interviews. His testimony connects the UAP subject to NATO and the broader Western alliance — this wasn't just an American secret.