Aliyu Mohammed Gusau

Aliyu Mohammed Gusau (born 18 May 1943) is a Nigerian general and statesman. He has held several high level national security, military and intelligence offices, and has participated in several military coups, playing a central role in founding the Fourth Nigerian Republic.

He was most recently the Minister of Defence, and has served as National Security Adviser to three presidents; he was also the Chief of Army Staff during Ernest Shonekan and briefly Sani Abacha's regime, headed different intelligence agencies, and was commandant of the Nigerian Defence Academy. Provided by Wikipedia