Ojukwu Bunker is part of the National War Museum and its annex at Okpara Avenue, all in Umuahia, Abia State.
The bunker, constructed during the civil war after the fall of Enugu, was the subterranean office for the Biafran government. The premises belonged to Late Dr. Michael I. Okpara, the second Premier of Eastern Nigeria from December 17, 1959 to January 15, 1966.
The plan was drawn on April, 1968 by Frank Mbanefo Associates. Frank Mbanefo was from Onitsha, Anambra State. Structural design was done by Agbim and partners. Dr. Chuba Agbim was from Amaru Village in Nimo, Anambra State.
The superintendent who handled the workers was Late Mr. Laurence O. Okany from Ogidi, Anambra State. The construction was done by Engineer Joel Onyemelukwe of Nnewi-Ichi, Nnewi, Anambra State.
The bunker measures 26.9 feet deep, about 8 meters. It was done under 90 days, between April to June 1968. All the people involved in the construction of the bunker were less than 40 years old.