Thursday, July 2, 1998 Published at 13:17 GMT 14:17 UK
Nigeria: Country Profile
With an estimated 103m people Nigeria is Africa's most populous nation.
Oil and debt
Nigeria's economy is heavily dependent on oil, which provides the vast majority of the country's export earnings.
During the 1970s Nigeria experienced high levels of economic growth but its national debt also grew.
After repeatedly negotiating agreements with creditors Nigeria arranged a long-term structural programme with the International Monetary Fund in 1986.
Coups and politics
Nigeria gained independence from Britain on October 1, 1960. Since then its has had 27 years of military rule.
Major-General Johnson Aguiyi-Aronsi, an Ibo from the Eastern Region, staged a successful coup in 1966 and formed a Supreme Military Council.
Just six months later he was killed and Lieutenant-Colonel Yakubu Gowon, from the Christian North, seized power.
In 1967 relations between the Eastern Region and the federal government deteriorated.
The military Governor of the Eastern Region, Lt-Col Chukwuemeka Odumegwu-Ojukwu, announced their secession and proclaimed its independence as the Republic of Biafra.
Federal forces spent two years quelling the Biafra rebellion. Up to 1m people died mainly from starvation.
But Nigeria has also seen its influence grow with neighbouring countries, most recently in Sierra Leone, where Nigeria helped restore the democratically elected leader.
Since then a series of coups and countercoups have dominated the Nigerian political landscape.