Masu Ikon Fada a Ji a Najeriya: Tsohon shugaban Najeriya Olusegun Obasanjo

Lt. Col. Philip Effiong, right, acting head of state who announced the formal surrender of Biafra, talks in Owerri, Biafra's last stronghold, to Col. Olusegun Obasanjo, who accepted the field surrender of Biafra's armed forces, Jan. 15, 1970.

U.S. Ambassador to the United Nations Andrew Young, left, talks with Lt. Gen. Olusegun Obasanjo, the Nigerian head of state, in Lagos, Feb. 10, 1977.

American President Jimmy Carter, left, and Nigerian Head of State General Olusegun Obasanjo after attending a service at the First Baptist Church, in Lagos on April 3, 1978.

Obasanjo with President Bill Clinton.

Obasanjo

Olusegun Obasanjo, Nigeria's former president who is heading an African Union observation mission on the Senegalese elections, makes a statement during a press conference, in Dakar, Senegal Saturday, Feb. 25, 2012.

Former Nigerian President Olusegun Obasanjo, an envoy of the African Union and West Africa's ECOWAS bloc, speaks to journalists at a news conference in the capital Dakar February 25, 2012.

Tsohon shugaban Najeriya Olusegun Obasanjo kan hanyar zuwa fadar shugaban Ivory Coast Laurent Gbagbo domin shawarwari.

Tsohon shugaban Najeriya. Olusegun Obasanjo, zai jagoranci tawagar hadin guiwa ta Kungiyar Tarayyar Afirka da ECOWAS wajen kokarin yin sulhun gardamar siyasar da ta kaure a kasar Senegal

Zimbabwean Prime Minister Morgan Tsvangirai meets with former Nigerian President Olusegun Obasanjo at his offices in Harare, July, 29, 2013.