Platoon released in 1986 is the first known successful anti-war movie which shows the true destruction of war on both a soldier and the people caught up in conflict.
The movie is set during the Vietnam war and follows a group of US soldiers adapting to the life they're facing in the jungle of Vietnam and the fatalities of war. The main character is Chris (Charlie Sheen) who is a new recruit and adjusting to life as a soldier. The movie mainly focuses on Chris' struggle of trying to keep his morals and not be mentally changed by war, like many of young Americans who went to fight in Vietnam at the time.
Platoon's main focus is trying to show the public the true sense of what war is really like and the realism of what soldiers have to go through, the movie does this well and leaves a lasting effect on the audience showing them the realism of war.
There isn't necessarily a point to point plot to the movie, instead there is a feeling that anything can happen at any moment like the viewer is experiencing the war like they was there.
I would recommend this movie as it shows the true effect of what war has on an invidudal and educate people on what war is really like.