Bwana Buhari yigeze kuba ari mu gisirikare, yararongoye igihugu ca Nigeria mu kiringo c'amezi 20 mu myaka ya 1980, aca atorwa nk'umukuru w'igihugu mu 2015, gutyo aca aba uwa mbere atsinze umukuru w'igihugu akiri ku butegetsi.
