Sani Abacha

General Sani Abacha seized power in a coup, overthrowing the interim government of Ernest Shonekan. Abacha cited the need to restore order after the political crisis following the annulled 1993 election.

Abacha's regime arrested and detained numerous political opponents, including former head of state Olusegun Obasanjo and his deputy Shehu Musa Yar'Adua, who were accused of plotting a coup. The crackdown consolidated Abacha's authoritarian rule.

Abacha's regime executed writer and environmental activist Ken Saro-Wiwa and eight other Ogoni activists after a controversial trial. The execution drew international condemnation and led to Nigeria's suspension from the Commonwealth.

Abacha initiated a transition program to civilian rule, with himself as the sole presidential candidate. The program was widely seen as a sham to legitimize his continued rule. It ended abruptly with his death.

Abacha died suddenly at the age of 54, officially from a heart attack. His death ended his five-year dictatorship and opened the door for a transition to civilian rule in Nigeria.