Platoon is a 1986 American war film written and directed by Oliver Stone, starring Tom Berenger, Willem Dafoe, Charlie Sheen, Keith David, Kevin Dillon, John C. McGinley, Forest Whitaker, and Johnny Depp. … The film, based on Stone’s experience from the [Vietnam] war, follows a new U.S. Army volunteer (Sheen) serving in Vietnam while his Platoon Sergeant and his Squad Leader (Berenger and Dafoe) argue over the morality in the platoon and of the war itself. …

…On Rotten Tomatoes, the film has an approval rating of 89% based on 120 reviews, with an average rating of 8.5/10. The site’s critical consensus reads, “Informed by director Oliver Stone’s personal experiences in Vietnam, Platoon forgoes easy sermonizing in favor of a harrowing, ground-level view of war, bolstered by no-holds-barred performances from Charlie Sheen and Willem Dafoe.”

https://en.wikipedia.org/wiki/Platoon_(film)