After informing his reluctant parents, Ojukwu joined the
Nigerian Civil Service in
Udi, as an Assistant District Officer. He was posted to the East since local authorities mandated all young civil administrators to serve in the
Eastern Region. He hardly spoke
Igbo since he was born in the north, raised in the west, and educated in England, hence, he could speak English and Yoruba fluently, and satisfactory
Hausa. Ojukwu started learning Igbo in order to communicate with the people. Throughout his stay in Udi and other later postings in
Umuahia and
Aba from 1955 to 1957, he stayed with people living in bushes. From Aba, he was posted to
Calabar. His father, believing the
superstition that Efik women cast spells and bewitch young men, he called his friend, the then Governor-general,
John Stuart Macpherson, to terminate the appointment, which he did. Ojukwu became angry about the termination, and he then applied to join the
Nigerian Army in 1957. His reason was to escape the influence of his father over his chosen career. The Nigerian army was regarded as a small administration that people who held commissioned offices had their last degree from primary school. Seeing Ojukwu apply to join the military, surprised the
Governor-general, high Army Commands, and his father. Louis, through Macpherson, ensured that Ojukwu is denied officer cadetship, hence he would not enter as a private soldier, which is more difficult but Ojukwu still Joined as a private soldier at the Army Recruit Depot in
Zaria. During a recruit training by Sergeant Moussa Fort-Lamy, Ojukwu corrected his English speaking errors. Surprised by that, he sent Ojukwu to be interviewed by the Depot commander and subsequently apply for an officer commission-cadetship. It took a month for the paper to be out and during the waiting, Ojukwu was assigned the duty of escorting the wife and daughter of the Colonel in their horse ride and tennis parties. The application was successful, and from Zaria, Ojukwu first moved to
Teshie in Ghana and then to Officer Cadet School in
Eaton Hall, England in February 1958. After a six months course, Ojukwu became a Second Lieutenant and before returning to Nigeria in November, he visited Infantry School, Warminster and Small Arms School, Hythe. In Nigeria, Ojukwu was posted to the 5th Battalion in
Kaduna. He was sent to Ghana's Teshie Frontal School in 1959, to teach infantry tactics, and one of his student was
Murtala Muhammed. From Teshie, he taught military law at the Ghana Academy. A British Brigadier, who was on a visit to Nigeria, requested that Ojukwu return as his staff in the brigade at
Apapa. The Nigerian Army at Central Lagos disputed the request and asked Ojukwu to report to the headquarters in January 1961. Ojukwu returned to Nigeria to witness the 1960
Nigerian Independence but returned to Ghana to finish his work. He returned again to Nigeria before Christmas in 1960 and saw he was already promoted to the rank of a captain. From January 1961 to mid 1961, he worked as a staff of branch A of the new Nigerian army headquarters located within the building of the Defense ministry in Lagos. After the independence, many British army officers were removed and there were more space for new administration. It was six months of Ojukwu's captaincy when he was promoted to the rank of a Major in the summer of 1961. Shortly after his promotion, Ojukwu was sent to Kaduna as a staff officer of the 1st Brigade.
Zaire also had independence in 1960 and had begun to break into
Katanga, a rich in minerals province. At the end of 1961, the 1st Brigade were sent there and took over the works of the
United Nations (UN) forces at Luluaboury. Ojukwu served as the Adjutant to the British commander, Brigadier Mackenzie. The British Government informed Lagos about the remaining single vacancy of one Nigerian officer to attend the
Joint Service Command and Staff College (JSSC) course in 1962. ==1966 coups and events leading to the Nigerian Civil War==