Full Metal Jacket

The American Army and the Vietnam War, but this time from the perspective of Stanley Kubrick. From the beginning to the middle of the film, we watch how military discipline affects soldiers with different personalities. This effect can be interpreted more as a psychological damage.
For the rest of the movie, we are on the battlefield and feel the war in all its reality. The film does not have a subject that can be summarized other than being essentially a war movie, but the treatment of this subject is enough to explain what war does to people. The war used in fiction is just a tool to show this. For this reason,
Do not expect a ‘Rambo’ movie.