Since the start of Boko Haram's insurgency thousands of boys and girls have gone missing across north eastern Nigeria. The Islamist group use the kidnap of children as a strategy in their asymmetric war. Girls, as young as eight, are taken to be married off to fighters or deployed as sex slaves and, increasingly, used to commit suicide attacks. Lucy (22): "The insurgents came to my village around 4 pm. They shot at anything that moved and bombs were going off everywhere. I hid in our house. Three days after the violence got worse. Men were dragged out of their houses and older women were shot without any reason. I was captured and locked up with the other girls from the village. I was imprisoned for two months. Sometimes one of my friends would be married off and I never saw them again. I managed to escape but each day I still think about the girls who were less fortunate."