Use for works in which the events in the writer's life slightly disguised are presented as fiction. Samuel Butler's The way of all flesh is an example of autobiographical fiction.
Use for stories dealing with wars, campaigns or battles from the military angle. Do not use for stories dealing with the social aspects of wartime life. For novels belonging to another genre and with a wartime setting, prefer the heading for that genre, e.g., Adventure fiction, Mystery fiction, etc.