I nside a mud-brick hut on the edge of a camp for people displaced by terrorism, an ex-Boko Haram fighter is explaining what drew him to the group. “I joined because I had no choice,” said the former militant, Bahana Alhadji. Then aged 22 and struggling to make a living fishing on Lake Chad, he told The Telegraph that joining the group gave him status, camaraderie and a reliable source of food. “When I was there, we were given rations every week. They made me feel welcome.” As a kind of perverse signing bonus, Alhadji was given three teenage ‘wives’. The group is notorious for systematically enslaving young women and girls and forcing them into marriages with its fighters. Bana Aljadji (right), a former Boko Haram combatant who left the group and now lives in the Fourkolum displacement site with his wives and children Credit : Hugh Kinsella Cunningham/The Telegraph It is easy to see how groups like Boko Haram appeal to young men like Alhadji.…