Smokey Stover who it is agreed by most 415th members gave the "foo fighters" their name. The phrase foo fighter, also taken from Holman's strip, was used by Allied aircraft pilots in World War II to describe various unidentified flying objects or mysterious aerial phenomena seen in the skies over both the European and Pacific Theaters of Operations. Though foo fighter initially described a type of UFO reported and named by the 415th Squadron, the term was also commonly used to mean any UFO sighting from that period. Foo Fighters is also the name of a rock band, first heard in 1995.
Unidentified flying object in the 2010s, for unexplained reasons. Nevertheless, various studies have concluded that the phenomenon does not represent a threat to national security, nor does it contain anything worthy of scientific pursuit (e.g., 1951 Flying Saucer Working Party, 1953 CIA Robertson Panel, USAF Project Blue Book, Condon Committee). The Oxford English Dictionary defines a UFO as "An unidentified flying object; a 'flying saucer'." The first published book to use the word was authored by Donald E. Keyhoe. The acronym "UFO" was coined by Captain Edward J. Ruppelt, who headed Project Blue Book, then the USAF's official investigation of UFOs. He wrote,