Tribes, also known as The Soldier Who Declared Peace (UK), is a 1970 television film, broadcast as an ABC Movie of the Week directed by Joseph Sargent. A big ratings success when it first aired November 10, 1970, Tribes was later released theatrically in Britain and Europe under the title The Soldier Who Declared Peace.
This drama tells the story of Private Adrian (portrayed by Jan-Michael Vincent), a young United States Marine Corps Vietnam war era draftee who, despite being an anti-war hippie, reluctantly reports to boot camp to fulfill his duty. Adrian naturally excels as a leader, though his pacifist ideology presents continuing conflicts between himself and his Drill Instructor. Adrian's Drill Instructor, Gunnery Sgt. Thomas Drake (portrayed by Darren McGavin) quickly recognizes Adrian's leadership qualities, but is conflicted as he grows to respect Adrian while also realizing that he represents everything Adrian opposes.
Throughout the traing another instructor, Sgt. Frank DePayster (portrayed by Earl Holliman), takes an instant dislike to Adrian. He repeatedly argues with Drake about him, claiming that the fact that the man is performing all of his assigned tasks is not enough -- he considers his attitude grounds enough for him to be set back and placed in the Motivational Platoon, a diciplinary unit for problem recruits. Drake disagrees and allows him to graduate. However, DePayster had gone behind his back by filing a complaint against them both with the Company Commanding Officer. Without Drake's aproval, the CO flunked Adrian and placed him in Motivational Platoon under DePayster. Drake acuses DePayster of carring out a personal vedetta, to which DePayster replies "I'll forget I heard that."
The next morning, DePayster informs Drake that Adrian deserted during the night. Drake keeps a drawing of a dove made earlier by Adrian.