500,000 children working with armed groups around the world -- detailed report from Psychology Beyond Borders

These children serve in a variety of different capacities: as cooks, as quartermasters, as sexual slaves and as combat troops. Their experiences can result in high exposure to profoundly traumatic events, placing them at extreme risk for the development of serious emotional disorders. Psychosocial services targeting former child soldiers are required to help these children transition from their roles as members of armed forces back into a healthy and stable civilian life.

Brief Summary with link to the 100+ page report