Tribes, also known as The Soldier Who Declared Peace (UK), is a 1970 American television drama film broadcast as an ABC Movie of the Week directed by Joseph Sargent.

A big ratings success when it first aired November 10, 1970 (which happened to be the Marine Corps' 195th birthday), Tribes was later released theatrically in Britain and Europe under the title The Soldier Who Declared Peace.

Private Adrian, 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 as an American.

Throughout the training, Drake's superior, Chief Drill Instructor Master Sergeant Frank DePayster, takes an instant dislike to Adrian.

However, during a weekend pass in San Diego, Adrian becomes disenchanted with military life and exchanges his dress uniform for civilian clothes at an Army-Navy store.