Air Marshal Adesola Nunayon Amosu was born on 1 August, 1958 in Badagry, Lagos State, Nigeria. He was enlisted into the Nigerian Air Force (NAF) through the Nigerian Defence Academy as a member of 25 Regular Course on 3 January, 1979. He was commissioned as a Pilot Officer on 3 July, 1981. Prior to his appointment on 16 January, 2014 as the Chief of Air Staff (CAS), he was the Director of Operations and Air Officer Commanding Tactical Air Command (AOC TAC). He was the 19th Chief of Air Staff who served from 2014 to 2015.