John R. Stockwell is an American former CIA officer who became a critic of United States government policies after serving in the Agency for thirteen years and serving seven overseas tours of duty. After managing U.S. involvement in the Angolan Civil War as Chief of the Angola Task Force during its 1975 covert operations, he resigned and wrote In Search of Enemies, a book which remains the only detailed, insider's account of a major CIA "covert action". He also served as a reserve officer in the United States Marine Corps from 1955 to 1977, retiring as a Major.