Cameroonian President Paul Biya(R) meets with Nigerian President Muhammadu Buhari in Yaounde, Cameroon, on July 29, 2015. Nigerian President Muhammadu Buhari on Wednesday jetted out to hold consultative talks with his Cameroonian counterpart, Paul Biya, in a continued effort to create a more robust regional effort against Boko Haram. (Xinhua/Fabrice Ngon)
