At the commencement of the Biafra War in 1967, Akintunde Akinsehinwa was recruited by the Nigerian Army and trained as an officer cadet at the Nigerian Army School of Infantry in Jaji, Kaduna State. After six months of training, Akinsehinwa was commissioned by the Army as a second lieutenant and sent to the war front to join the famous 3rd Marine Commando Division under the stewardship of "The Black Scorpion" – Colonel Benjamin Adekunle, where he participated in military offensive efforts on the Calabar front to quell the secession of the Biafran separatist movement. After the war ended in 1970, Akinsehinwa chose to undergo further military training by taking Signal Officers Courses. Upon completion of his training he was promoted to rank of Lieutenant and posted to Arakan Signals Barracks in Apapa, Lagos, Nigeria as an officer of the Nigerian Army Signal Corps. While at Arakan, he was appointed as a staff officer to then Brigadier General Mohammed who was brigade commander of signals at the time. Brigadier General Mohammed was soon appointed as Minister of Communications by the Yakubu Gowonregime and took Akinsehinwa along with him as a personnel staff officer and technical assistant. On July 29, 1975, General Mohammed was made head of state by younger soldiers who wanted to ensure Nigeria's return to democratic rule. He was not directly involved in the coup d'état that brought him to power, but he had played a prominent role in rallying northern officers behind the July 1966 coup that felled Aguiyi-Ironsi. Upon becoming Head of State, Murtala appointed Akinsehinwa as his Aide-de-Camp. Mohammed citing Akinsehinwa's hard work, wit and intelligence, appointed Akinsehinwa as Aide-de-Camp effectively making him the youngest and lowest ranking presidential Aide-de-Camp in Nigerian history. In a short time, Mohammed's policies won him broad popular support, and his decisiveness elevated him to the status of a national hero.
Death
On Friday the 13th of February 1976, General Mohammed's motorcade was ambushed in Lagos by coup plotters and assassins amid an abortive coup d'état. The coup plotters unleashed a hail of bullets on Mohammed's black Mercedes Benz limousine killing him instantly. Mohammed's driver and orderly were also killed instantly. However, Akinsehinwa survived the initial barrage of bullets and exited the limousine to return fire. Unfortunately, he was overpowered and eventually succumbed to a hail of bullets. Akintunde Akinsehinwa at 31 years of age thus became the first aide-de-camp to die in the line of duty while serving a Nigerian head of state.
