Killer Force, also known as The Diamond Mercenaries, is a 1976 thriller film directed by Val Guest and starring Telly Savalas, Peter Fonda and Christopher Lee. It was a co-production between the Republic of Ireland, Switzerland, United Kingdom and the United States, and was filmed primarily in Namibia, which at the time of filming was under South African occupation. Its plot is about a gang of criminals who plan a major robbery of a diamond mine.