'Yan ta'addar Boko Haram dai sun shafe kusan shekaru 9 suna kokarin kafa daular musulunci a yankin arewa maso gabashin Najeriya, inda dalilin hakan ne matsalar take shafar kasashe da suke makwabtaka da Najeriyan irin su kasar Chadi, Nijar da kasar Cameroon.
