The Gorman dogfight was a widely publicized UFO incident which took place on 1 October 1948, in the skies over Fargo, North Dakota, United States. United States Air Force (USAF) Captain Edward J. Ruppelt wrote in his bestselling and influential The Report on Unidentified Flying Objects that the "dogfight" was one of three "classic" UFO incidents in 1948 that "proved to [Air Force] intelligence specialists that UFOs were real," along with the Chiles-Whitted UFO encounter and the Mantell UFO incident.[1] In 1949, the official explanation made by the USAF was that the Gorman dogfight had been caused by a lighted weather balloon.[2]