Other websites have criticised this film. I would only say this, watch the interviews afterwards, esp. with the guys who had escaped the horrors of ethnic cleasning occuring in some parts of Africa. This is a brutal film, raw and nasty - but maybe necessary. There's no sense in how people treat other people sometimes, but this movie doesn't try to find a nice pat answer.
A difficult film to watch in places due to the brutality, but this is not glorified violence. One has to remind oneself that this is a film based on real events going on in Africa and could indeed happen in many parts of the world. Willis leads a special forces team on a rescue mission, who then become involved in the atrocities being committed in the civil war. He is totally believable as the die hard (scuse the pun!)soldier who finds a conscience.