Repeat: An audio recording believed to be from Boko Haram's leader Abubakar Shekau said the jihadists, who have been waging a six-year military campaign in northern Nigeria, were merging with ISIS.
An audio recording believed to be from Boko Haram's leader Abubakar Shekau said the jihadists, who have been waging a six-year military campaign in northern Nigeria, were merging with ISIS.