Taps (1981)
The key to understanding Taps lies in its name. It differs from the title of the novel that serves as its source material, and perhaps for good reason: while both follow the general premise of a group of military cadets fighting to keep their school open, Devery Freeman's Father Sky serves as more of a psychological investigation behind the cadets' reasoning and their parents' opposition, while Taps purely focuses on the cadets. This may be a result of the fact that the film rights were purchased before Father Sky was published. However, nitpicking over similarities and differences doesn't mean too much when Taps provides a subdued analysis of its own on military culture within the United States.