<Table> <Tr> <Th> </Th> <Th> War </Th> <Th> Dates </Th> <Th> Duration </Th> <Th> Duration ( graphical representation ) </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> War in Afghanistan </Td> <Td> 2001 / 10 -- present </Td> <Td> 16 years ( 15 years , 11 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> Moro Rebellion </Td> <Td> 1899 -- 1913 </Td> <Td> 14 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 3 . </Td> <Td> Northwest Indian War </Td> <Td> 1785 -- 1795 </Td> <Td> 10 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 4 . </Td> <Td> Iraq War </Td> <Td> 2003 / 03 -- 2011 / 12 </Td> <Td> 8.8 years ( 8 years , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 5 . </Td> <Td> American Revolutionary War </Td> <Td> 1775 / 04 -- 1783 / 09 </Td> <Td> 8.4 years ( 8 years , 5 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 6 . </Td> <Td> Vietnam War </Td> <Td> 1965 / 03 -- 1973 / 04 </Td> <Td> 8.1 years ( 8 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 7 . </Td> <Td> Second Seminole War </Td> <Td> 1835 / 12 -- 1842 / 08 </Td> <Td> 6.7 years ( 6 years , 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 8 . </Td> <Td> First Barbary War </Td> <Td> 1801 / 05 -- 1805 / 06 </Td> <Td> 4.1 years ( 4 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 9 . </Td> <Td> American Civil War </Td> <Td> 1861 / 04 -- 1865 / 04 </Td> <Td> 4 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 10 . </Td> <Td> World War II </Td> <Td> 1941 / 12 -- 1945 / 08 </Td> <Td> 3.7 years ( 3 years , 8 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 11 . </Td> <Td> War on ISIL </Td> <Td> 2014 / 06 -- present </Td> <Td> 3.3 years ( 3 years , 3 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 12 . </Td> <Td> Korean War </Td> <Td> 1950 / 06 -- 1953 / 07 </Td> <Td> 3.1 years ( 3 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 13 . </Td> <Td> War of 1812 </Td> <Td> 1812 / 06 -- 1814 / 12 </Td> <Td> 2.5 years ( 2 years , 6 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 14 . </Td> <Td> Red Cloud 's War </Td> <Td> 1866 / 07 -- 1868 / 04 </Td> <Td> 1.8 years ( 1 year , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 15 . </Td> <Td> Mexican - American War </Td> <Td> 1846 / 04 -- 1848 / 02 </Td> <Td> 1.8 years ( 1 year , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 16 . </Td> <Td> World War I </Td> <Td> 1917 / 04 -- 1918 / 11 </Td> <Td> 1.6 years ( 1 year , 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 17 . </Td> <Td> Great Sioux War of 1876 </Td> <Td> 1876 / 02 -- 1877 / 05 </Td> <Td> 1.2 years ( 1 year , 3 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 18 . </Td> <Td> Persian Gulf War </Td> <Td> 1990 / 08 -- 1991 / 02 </Td> <Td> 0.5 years ( 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 19 . </Td> <Td> Whiskey Rebellion </Td> <Td> 1794 / 05 -- 1794 / 10 </Td> <Td> 0.4 years ( 5 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 20 . </Td> <Td> Spanish -- American War </Td> <Td> 1898 / 04 -- 1898 / 08 </Td> <Td> 0.3 years ( 114 days ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 21 . </Td> <Td> Kosovo War </Td> <Td> 1999 / 03 -- 1999 / 06 </Td> <Td> 0.2 years ( 79 days ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 22 . </Td> <Td>
<Table> <Tr> <Th> </Th> <Th> War </Th> <Th> Dates </Th> <Th> Duration </Th> <Th> Duration ( graphical representation ) </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> War in Afghanistan </Td> <Td> 2001 / 10 -- present </Td> <Td> 16 years ( 15 years , 11 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> Moro Rebellion </Td> <Td> 1899 -- 1913 </Td> <Td> 14 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 3 . </Td> <Td> Northwest Indian War </Td> <Td> 1785 -- 1795 </Td> <Td> 10 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 4 . </Td> <Td> Iraq War </Td> <Td> 2003 / 03 -- 2011 / 12 </Td> <Td> 8.8 years ( 8 years , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 5 . </Td> <Td> American Revolutionary War </Td> <Td> 1775 / 04 -- 1783 / 09 </Td> <Td> 8.4 years ( 8 years , 5 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 6 . </Td> <Td> Vietnam War </Td> <Td> 1965 / 03 -- 1973 / 04 </Td> <Td> 8.1 years ( 8 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 7 . </Td> <Td> Second Seminole War </Td> <Td> 1835 / 12 -- 1842 / 08 </Td> <Td> 6.7 years ( 6 years , 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 8 . </Td> <Td> First Barbary War </Td> <Td> 1801 / 05 -- 1805 / 06 </Td> <Td> 4.1 years ( 4 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 9 . </Td> <Td> American Civil War </Td> <Td> 1861 / 04 -- 1865 / 04 </Td> <Td> 4 years </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 10 . </Td> <Td> World War II </Td> <Td> 1941 / 12 -- 1945 / 08 </Td> <Td> 3.7 years ( 3 years , 8 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 11 . </Td> <Td> War on ISIL </Td> <Td> 2014 / 06 -- present </Td> <Td> 3.3 years ( 3 years , 3 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 12 . </Td> <Td> Korean War </Td> <Td> 1950 / 06 -- 1953 / 07 </Td> <Td> 3.1 years ( 3 years , 1 month ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 13 . </Td> <Td> War of 1812 </Td> <Td> 1812 / 06 -- 1814 / 12 </Td> <Td> 2.5 years ( 2 years , 6 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 14 . </Td> <Td> Red Cloud 's War </Td> <Td> 1866 / 07 -- 1868 / 04 </Td> <Td> 1.8 years ( 1 year , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 15 . </Td> <Td> Mexican - American War </Td> <Td> 1846 / 04 -- 1848 / 02 </Td> <Td> 1.8 years ( 1 year , 9 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 16 . </Td> <Td> World War I </Td> <Td> 1917 / 04 -- 1918 / 11 </Td> <Td> 1.6 years ( 1 year , 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 17 . </Td> <Td> Great Sioux War of 1876 </Td> <Td> 1876 / 02 -- 1877 / 05 </Td> <Td> 1.2 years ( 1 year , 3 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 18 . </Td> <Td> Persian Gulf War </Td> <Td> 1990 / 08 -- 1991 / 02 </Td> <Td> 0.5 years ( 7 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 19 . </Td> <Td> Whiskey Rebellion </Td> <Td> 1794 / 05 -- 1794 / 10 </Td> <Td> 0.4 years ( 5 months ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 20 . </Td> <Td> Spanish -- American War </Td> <Td> 1898 / 04 -- 1898 / 08 </Td> <Td> 0.3 years ( 114 days ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 21 . </Td> <Td> Kosovo War </Td> <Td> 1999 / 03 -- 1999 / 06 </Td> <Td> 0.2 years ( 79 days ) </Td> <Td> <Table> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> 22 . </Td> <Td>
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War in Afghanistan
War in Afghanistan