The Army of the Devil participated in the First Liberian Civil War in the 1980s. While commanding the Small Boy Unit, Solidus Snake inducted a young boy into its ranks, whom he named Jack. After receiving his first taste of battle, Jack went on to become an accomplished killer, eventually being promoted to captain at only age 10. In order to keep the child soldiers controlled, they would be fed food mixed with gunpowder and toluene, and be forced to watch Hollywood action movies to help keep them focused on killing.