The Delta Force is a 1986 American action film starring Chuck Norris and Lee Marvin as leaders of an elite group of Special Operations Forces personnel based on the real-life U.S. Army Delta Force unit. Directed, co-written and co-produced by Menahem Golan, the film features Martin Balsam, Joey Bishop, Robert Vaughn, Steve James, Robert Forster, Shelley Winters and George Kennedy. It is the first installment in The Delta Force film series. Two sequels were produced, entitled Delta Force 2: The Colombian Connection and the direct-to-video Delta Force 3: The Killing Game. The Delta Force was inspired by the hijacking of TWA Flight 847.