President Jimmy Carter with the then-leader of Nigeria, General Olusegun Obasanjo (1977). Two years later, Obasanjo became the first military head of state to transfer power peacefully to a civilian regime in Nigeria

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Olusegun Obasanjo

Olusegun Mathew Okikiola Aremu Obasanjo, GCFR (/oʊˈbɑːsəndʒoʊ/; Yoruba: Olúṣẹ́gun Ọbásanjọ́ [olúʃɛ̙́ɡũ ɒ̙básandʒɒ̙́]; born c. 5 May 1937) is a former Nigerian Army general who was President of Nigeria from 1999 to 2007. Obasanjo was a career soldier before serving twice as his nation’s head of state. He served as a military ruler from 13 February 1976 to 1 October 1979, and as a democratically elected president from 29 May 1999 to 29 May 2007. From July 2004 to January 2006, Obasanjo also served as Chairperson of the African Union… Wikipedia