Babatunde "Tunde" Abdulbaki Idiagbon (14 September 1943 – 24 March 1999) was a Nigerian general who served as the 6th Chief of Staff, Supreme Headquarters (second-in-command) under military head of state General Muhammadu Buhari from 1983 to 1985. He was also a key member of Nigeria's military governments between 1966 and 1979, serving as a military administrator of Borno State under General Olusegun Obasanjo's military government. Early life Idiagbon was born into the family of his father Hassan Dogo who is of Fulani ancestry and mother Ayisatu Iyabeji Hassan Idiagbon on 14 September 1943 in Ilorin, Kwara State. He attended United Primary School, Ilorin from 1950 to 1952 and Okesuna Senior Primary School, Ilorin, 1953–57. He received his secondary education at the Nigeria Military School, Zaria between 1958 and 62. Military career In 1962, Idiagbon joined the Nigerian Army by enrolling in the Nigerian Military Training College (NMTC). In February 1964, the college was renamed the Nigerian Defence Academy (NDA). From 1962 to 1965, Idiagbon attended the Pakistan Military Academy, Kakul (PMA Kakul), Abbottabad, Pakistan, where he obtained a bachelor's degree in economics. Upon arrival to Nigeria from Pakistan he was commissioned second lieutenant in April 1965. He was company commander, 4th Battalion from August 1965 to February 1966. In 1966 he studied for the junior commander course at the Nigerian Defence Academy, Kaduna. From 1966 to 1967 he also served as an intelligence officer, 4th Battalion and General Staff Officer, 3rd Intelligence, 1st Sector. He was promoted to the rank of lieutenant in 1966. He fought in the Nigerian Civil War and was made commanding officer, 20 Battalion from October 1967 to February 1968. In 1968, he was promoted to the rank of captain. He was the commanding officer, 125 Battalion, from 1968 to 1970 - a dreaded fighting unit. In 1970, he was promoted to the rank of major. He was made brigade major and deputy commander, 33 Brigade from March 1970 to March 1971 and the commander, 29 Brigade from March 1971 to December 1972. In January 1973 he served as the general staff officer, Grade 1 and later, principal staff officer (PSO), Supreme Military Headquarters. He was promoted to lieutenant colonel in 1974. He was made brigade commander, 31 and 15 Brigades from August 1975 to August 1978. In 1976, Idiagbon proceeded to the Command and Staff College in Quetta, Pakistan, for further military training. In