Another Man's War is a 2009 book written by Sam Childers about his life as a former gang biker turned preacher and defender of South Sudanese orphans. The book was the basis of Machine Gun Preacher, a 2011 biographical adventure drama film starring Gerard Butler. The book bears the endorsement from South Sudan President Salva Kiir Mayardit, "The Reverend Sam Childers has been a very close friend to the government of South Sudan for many years and is a trusted friend."