Muhammadu Buhari GCFR ( born 17 December 1942 ) is the President of Nigeria . He is a retired Nigerian Army major general and was Head of State of Nigeria from 31 December 1983 to 27 August 1985 , after taking power in a military coup d'état .
Muhammadu Buhari , GCFR ( born 17 December 1942 ) is the President-elect of Nigeria and a retired Major General in the Nigerian Army who was Head of State of Nigeria from 31 December 1983 to 27 August 1985 , after taking power in a military coup d'état .