Silent black triangles raced at 1,800mph over secret US military bases, newly released Pentagon UFO files reveal

Federal witnesses logged the craft on at least three occasions this past year, and officials still cannot say whether a foreign nation is behind them. One flew just 200 to 300 feet up, about 9ft long with a 13ft wingspan. None made a sound or left exhaust. Pentagon spokesman Sean Parnell says this seventh batch is not the last.

Officials admit America may be years away from matching the technology witnesses described.

A redacted Roswell witness describes an egg-shaped craft and 4ft bodies under canvas.

White House spokesperson Anna Kelly: 'The American people asked, and President Trump delivered—enjoy!'