<P> The two Nigerian Military Juntas of 1966 - 1979 and 1983 - 1998 were a pair of military dictatorships in Nigeria that were led by the Nigerian military, having a chairman or president in charge . </P> <P> Nigeria's first military junta began following the 1966 Nigerian coup d'état which overthrew Prime Minister Alhaji Sir Abubakar Tafawa Balewa . Major General Johnson Aguiyi - Ironsi was made the Head of the Federal Military Government of Nigeria, but was soon overthrown and murdered in a coup in July of the same year . </P> <P> Aguiyi - Ironsi was succeeded by General Yakubu Gowon, who established a Supreme Military Council . Gowon held power until July 1975, when he was overthrown in a bloodless coup . </P>

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