<P> General Sani Abacha led a coup d'état which overthrew President Shonekan and his government . </P> <Table> <Tr> <Th_colspan="3"> Head of State </Th> <Th_colspan="3"> Term of Office </Th> <Th> Military </Th> </Tr> <Tr> <Th> No </Th> <Th> Portrait </Th> <Th> Name </Th> <Th> Took Office </Th> <Th> Left Office </Th> <Th> Duration </Th> </Tr> <Tr> <Th> 10 </Th> <Td> </Td> <Td> General Sani Abacha (1943--1998) </Td> <Td> 17 November 1993 </Td> <Td> 8 June 1998 (died in office .) </Td> <Td> 4 years, 203 days </Td> <Td> Provisional Ruling Council </Td> </Tr> <Tr> <Th> 11 </Th> <Td> </Td> <Td> General Abdulsalami Abubakar (1942--) </Td> <Td> 8 June 1998 </Td> <Td> 29 May 1999 (resigned .) </Td> <Td> 355 days </Td> <Td> Provisional Ruling Council </Td> </Tr> </Table> <Tr> <Th_colspan="3"> Head of State </Th> <Th_colspan="3"> Term of Office </Th> <Th> Military </Th> </Tr> <Tr> <Th> No </Th> <Th> Portrait </Th> <Th> Name </Th> <Th> Took Office </Th> <Th> Left Office </Th> <Th> Duration </Th> </Tr>

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