Eric L Haney born August 22 1952 is a retired member of the United States Army counterterrorist unit the 1st Special Forces Operational DetachmentDelta 1SFODD more commonly known as Delta Force In recent years he has been writing on terrorism guerrilla warfare and special operations Haney is the author of Inside Delta Force a memoir of his time in the elite unit in which he also writes about his participation in the aborted 1980 Operation Eagle Claw mission to Iran to free American hostages He was a coexecutive producer of the CBS television series The Unit created by David Mamet and inspired by Haneys special operations experiences Previously Haney was a technical consultant on Mamets 2004 film Spartan starring Val Kilmer