Watch the short anime series (13 episodes) called 'Flag'
I liked its multiple point documentary style as well done whole, - I'd say it is PGR-12/PG14, story revolves around a Civil War, the attempted measures to end it, and the persons caught up in it - there's isn't any blood in it percé, but some occasional gun camera scenes in the series do dipict Very Heavy MG fire being used on armed targets, and soldiers using weapons, more a humane and a journalistical political/military take on things.
I'd recommend it as it is quite well done with none of the 'disney' or 'kids anime' style to it, think it of a 13 episode (single) series in the style/ethos mix akin to Blood Diamond, Redacted Space; Above and Beyond.