Nigeria’s President Muhammadu Buhari says he has not changed the service chiefs in order to avoid “competition within the service.” Buhari said this in a recorded interview that was aired by Arise TV Monday night. Abayomi Gabriel Olonisakin, chief of defence staff; Tukur Yusufu Buratai, chief of army staff, Ibok-EteIkwe Ibas, chief of naval staff; […]