<Table> <Tr> <Th_colspan="2"> Sierra Leone Civil War </Th> </Tr> <Tr> <Td_colspan="2"> Map of Sierra Leone </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> 23 March 1991--18 January 2002 (10 years, 9 months, 3 weeks and 5 days) </Td> </Tr> <Tr> <Th> Location </Th> <Td> Sierra Leone </Td> </Tr> <Tr> <Th> Result </Th> <Td> Commonwealth victory </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> <P> Sierra Leone </P> <Ul> <Li> Kamajors </Li> <Li> CDF </Li> </Ul> <P> United Kingdom ECOMOG Forces Executive Outcomes Supported by: Guinea United States UNAMSIL </P> <Ul> <Li> Pakistan (2001 - 2005) </Li> <Li> India </Li> <Li> Kenya </Li> <Li> Russia (1999 - 2005) </Li> <Li> Ukraine (1999 - 2005) </Li> <Li> Nigeria </Li> <Li> Norway </Li> <Li> New Zealand </Li> <Li> Ghana </Li> <Li> Jordan </Li> <Li> Germany </Li> </Ul> </Td> <Td> <P> RUF AFRC West Side Boys Liberia </P> <Ul> <Li> NPFL </Li> </Ul> <P> Supported by: Libya </P> Burkina Faso </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> Joseph Saidu Momoh Julius Maada Bio Ahmad Tejan Kabbah Samuel Hinga Norman Yahya Kanu Valentine Strasser Solomon Musa Moinina Fofana Allieu Kondewa David Richards Tony Blair Vijay Jetley Daniel Opande </Td> <Td> Foday Sankoh Sam Bockarie Issa Sesay Augustine Gbao Johnny Paul Koroma Charles Taylor Benjamin Yeaten </Td> </Tr> <Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> <P> 4,000 + government soldiers and militiamen (1999) ECOMOG: 700 + Nigerian soldiers </P> 6,000 UNAMSIL soldiers, 260 military observers, 4 Russian Mil Mi - 24s (1999) </Td> <Td> ~ 20,000 rebels (1999) </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td_colspan="2"> Between 50,000--300,000 killed 2.5 million displaced internally and externally </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Sierra Leone Civil War </Th> </Tr>

When did the civil war in sierra leone start and end
find me the text answering this question