Former Nigerian Head of State General Abdulsalami Abubakar says that during the lead-up to the Nigerian Civil War, Emeka Odumegwu Ojukwu rejected the authority of Yakubu Gowon as head of state. Abubakar makes the claim in his autobiography, “Call of Duty,” which was publicly presented on his 84th birthday in Abuja. According to Abubakar, Ojukwu insisted on maintaining military hierarchy for succession after Major General J.T. Aguiyi-Ironsi was killed following the January 1966 coup. Abubakar says Ojukwu argued that, in the absence or death of Aguiyi-Ironsi, the next in command was Brigadier Babafemi Ogundipe, the Chief of Staff at Supreme Headquarters. He adds that Ojukwu refused to pledge loyalty to Gowon. The accounts presented across outlets also link the refusal to a wider context of instability after the coup, including anti-Igbo sentiment and ethnic violence in the North, and escalating tensions across the country. Abubakar further describes how, after attempts at political solutions, including the Aburi Accord, failed, Ojukwu announced secession and the Republic of Biafra on 30 May 1967.