But Nigeria refused to bend to Mr Buhari’s will. Almost 500 politicians and businessmen were arrested for corruption and sent to jail by military tribunals. A new currency was issued to flush out the stashes piled floor to ceiling in the homes of the elite. For many military men this purge was too close for comfort—and too uncompromising.

Buhari, a former military general who campaigned on rooting out government corruption, has died at age 82, the presidential press office said in a statement on Sunday.

Nigeria's President Muhammadu Buhari, who has died age 82 in a London clinic, was a former military ruler and self-styled converted democrat who returned to power through elections but struggled to convince Nigerians he could deliver on the change he promised.