Nigerian Navy / International Court of Justice / Successive Nigerian Military / Democratic Party / Nigerian police / Social Democratic Party / Nigeria's Federal government / Nigerian Union of Petroleum and Natural Gas Workers / Interim National Government / League of Nations / Federal government / Islamic court / Clinton administration / European Union / /
and a civilian sworn in as president / presidential elections / /
Position
Major General / imprisoned political leader / Prime Minister / President / Lieutenant-General / military ruler / writer and campaigner / civilian president / Lieutenant-Colonel / General / President and first politician / head / Governor / writer / Major / head of state and governor / Major-General / anti-pollution campaigner / Brigadier / candidate / Exiled writer / Chief / /