Hey, take it up with Ira Konigsberg, author of The Complete Film Dictionary (in print for over 20 years now). He transcribed the definition, not me.
TCFD defines "war films" as:
So apparently its as broad a genre as science-fiction.
On a side note I consider Platoon to be every bit the "slice of life character study" that we see in The Hurt Locker, much less so than movies about completing specific missions like Saving Private Ryan or Black Hawk Down.
TCFD defines "war films" as:
A motion picure dealing with war either as the major action of the film or the background to the film's action. Although war films are generally thought of as combat films that focus primarily on preparation for fighting and the actual armed conflict, the genre also includes other types of situations that are directly related to or the result of war: for example prisoner-of-war stories, often focusing on escape; the struggles and activities of the underground in occupied countries; spy adventures at home or abroad; and stories that use war as a context for dramatic situations and interactions among characters who are generally not taking an immediate role in the fighting.
So apparently its as broad a genre as science-fiction.
On a side note I consider Platoon to be every bit the "slice of life character study" that we see in The Hurt Locker, much less so than movies about completing specific missions like Saving Private Ryan or Black Hawk Down.