Question: Who is the retired Nigerian Army general whom eventually appointed the vice admiral, Ibok-Ete Ekwe Ibas, to Chief of Naval Staff (CNS) of the Nigerian Navy?
Sentence (from "Muhammadu Buhari"): He is a retired major general in the Nigerian Army and previously served as the nation's head of state from 31 December 1983 to 27 August 1985, after taking power in a military "coup d'état".
Relevant evidence: Yes