List of longest wars - wikipedia List of longest wars Throughout history humans have engaged in diverse forms of war. Even though there is disagreement among scholars as to how long these wars were, the following list classifies wars according to their duration. War Start date End date Duration Reconquista 000000000718 - 01 - 01 - 0000 718 - 000000000722 - 01 - 01 - 0000 722 000000001492 - 01 - 01 - 0000 1492 774 years Roman -- Persian Wars - 999999999946 - 01 - 01 - 0000 54 BC 000000000628 - 01 - 01 - 0000 628 681 years Germanic Wars - 999999999887 - 01 - 01 - 0000 113 BC 000000000569 - 01 - 01 - 0000 569 681 years Ottoman wars in Europe 000000001265 - 01 - 01 - 0000 1265 000000001918 - 01 - 01 - 0000 1918 653 years Serbian -- Turkish conflict 000000001312 - 01 - 01 - 0000 1312 000000001918 - 01 - 01 - 0000 1918 606 years Croatian -- Ottoman wars 000000001443 - 01 - 01 - 0000 1443 000000001878 - 01 - 01 - 0000 1878 435 years Arab -- Byzantine wars 000000000634 - 01 - 01 - 0000 634 000000001050 - 01 - 01 - 0000 1050 416 years Mexican Indian Wars 000000001519 - 01 - 01 - 0000 1519 000000001933 - 01 - 01 - 0000 1933 414 years Spanish -- Moro conflict 000000001500 - 01 - 01 - 0000 1500 000000001900 - 01 - 01 - 0000 1900 400 years Byzantine -- Arab wars ( 780 -- 1180 ) 000000000780 - 01 - 01 - 0000 780 000000001180 - 01 - 01 - 0000 1180 400 years Yaqui Wars 000000001533 - 01 - 01 - 0000 1533 000000001929 - 01 - 01 - 0000 1929 396 years Polish -- Russian Wars 000000001558 - 01 - 01 - 0000 1558 000000001939 - 01 - 01 - 0000 1939 381 years Philippine revolts against Spain 000000001521 - 01 - 01 - 0000 1521 000000001898 - 01 - 01 - 0000 1898 377 years Moroccan -- Portuguese conflicts 000000001415 - 01 - 01 - 0000 1415 000000001769 - 01 - 01 - 0000 1769 354 years Russo - Turkish wars 000000001568 - 01 - 01 - 0000 1568 000000001918 - 01 - 01 - 0000 1918 350 years Dano - Swedish wars 000000001470 - 01 - 01 - 0000 1470 000000001814 - 01 - 01 - 0000 1814 344 years Three Hundred and Thirty Five Years ' War 000000001651 - 01 - 01 - 0000 1651 000000001986 - 01 - 01 - 0000 1986 335 years Apache -- Mexico Wars 000000001600 - 01 - 01 - 0000 1600 000000001915 - 01 - 01 - 0000 1915 315 years Russo -- Swedish Wars 000000001495 - 01 - 01 - 0000 1495 000000001809 - 01 - 01 - 0000 1809 314 years Ottoman -- Persian Wars 000000001514 - 01 - 01 - 0000 1514 000000001823 - 01 - 01 - 0000 1823 309 years Burmese -- Siamese wars 000000001547 - 01 - 01 - 0000 1547 000000001855 - 01 - 01 - 0000 1855 308 years American Indian Wars 000000001622 - 01 - 01 - 0000 1622 000000001924 - 01 - 01 - 0000 1924 302 years Ottoman -- Venetian Wars 000000001422 - 01 - 01 - 0000 1422 000000001718 - 01 - 01 - 0000 1718 296 years Arauco War 000000001536 - 01 - 01 - 0000 1536 000000001825 - 01 - 01 - 0000 1825 289 years Arauco War 000000001536 - 01 - 01 - 0000 1536 000000001818 - 01 - 01 - 0000 1818 282 years Hispano - Moroccan wars 000000001681 - 01 - 01 - 0000 1681 000000001958 - 01 - 01 - 0000 1958 277 years Viking invasions of England 000000000793 - 01 - 01 - 0000 793 000000001066 - 01 - 01 - 0000 1066 273 years Navajo Wars 000000001600 - 01 - 01 - 0000 1600 000000001866 - 01 - 01 - 0000 1866 266 years Ottoman -- Habsburg wars 000000001526 - 01 - 01 - 0000 1526 000000001791 - 01 - 01 - 0000 1791 265 years Byzantine -- Seljuq wars 000000001048 - 01 - 01 - 0000 1048 000000001308 - 01 - 01 - 0000 1308 260 years Polish -- Ottoman Wars 000000001443 - 01 - 01 - 0000 1443 000000001699 - 01 - 01 - 0000 1699 256 years Ottoman -- Portuguese conflicts 000000001481 - 01 - 01 - 0000 1481 000000001718 - 01 - 01 - 0000 1718 237 years Chechen -- Russian conflict 000000001785 - 01 - 01 - 0000 1785 Ongoing 232 years Islamic conquest of Afghanistan 000000000642 - 01 - 01 - 0000 642 000000000870 - 01 - 01 - 0000 870 228 years Anglo - Spanish Wars 000000001585 - 01 - 01 - 0000 1585 000000001808 - 01 - 01 - 0000 1808 223 years Byzantine -- Ottoman Wars 000000001265 - 01 - 01 - 0000 1265 000000001479 - 01 - 01 - 0000 1479 214 years Polish -- Teutonic War 000000001308 - 01 - 01 - 0000 1308 000000001521 - 01 - 01 - 0000 1521 213 years Franco - Moroccan conflicts 000000001765 - 01 - 01 - 0000 1765 000000001958 - 01 - 01 - 0000 1958 193 years Cossack uprisings 000000001591 - 01 - 01 - 0000 1591 000000001775 - 01 - 01 - 0000 1775 184 years Russo - Persian Wars 000000001651 - 01 - 01 - 0000 1651 000000001828 - 01 - 01 - 0000 1828 177 years Spanish conquest of Guatemala 000000001521 - 01 - 01 - 0000 1521 000000001697 - 01 - 01 - 0000 1697 176 years Spanish conquest of Chiapas 000000001523 - 01 - 01 - 0000 1523 000000001695 - 01 - 01 - 0000 1695 172 years Muscovite -- Lithuanian Wars 000000001368 - 01 - 01 - 0000 1368 000000001537 - 01 - 01 - 0000 1537 169 years Russian conquest of Siberia 000000001580 - 01 - 01 - 0000 1580 000000001747 - 01 - 01 - 0000 1747 167 years Fitnas 000000000656 - 01 - 01 - 0000 656 000000000819 - 01 - 01 - 0000 819 163 years Ottoman -- Hungarian Wars 000000001366 - 01 - 01 - 0000 1366 000000001526 - 01 - 01 - 0000 1526 160 years Polish -- Swedish wars 000000001563 - 01 - 01 - 0000 1563 000000001721 - 01 - 01 - 0000 1721 158 years Anglo - Dutch Wars 000000001652 - 01 - 01 - 0000 1652 000000001810 - 01 - 01 - 0000 1810 158 years Australian frontier wars 000000001788 - 01 - 01 - 0000 1788 000000001934 - 01 - 01 - 0000 1934 146 years Mongol invasions and conquests 000000001206 - 01 - 01 - 0000 1206 000000001337 - 01 - 01 - 0000 1337 131 years Early Muslim conquests 000000000622 - 01 - 01 - 0000 622 000000000750 - 01 - 01 - 0000 750 128 years Second Hundred Years ' War 000000001689 - 01 - 01 - 0000 1689 000000001815 - 01 - 01 - 0000 1815 126 years Mughal - Sikh Wars 000000001635 - 01 - 01 - 0000 1635 000000001753 - 01 - 01 - 0000 1753 118 years Hundred Years ' War 000000001337 - 01 - 01 - 0000 1337 000000001453 - 01 - 01 - 0000 1453 116 years Russo - Kazan Wars 000000001438 - 01 - 01 - 0000 1438 000000001552 - 01 - 01 - 0000 1552 114 years Jin -- Song Wars 000000001125 - 01 - 01 - 0000 1125 000000001234 - 01 - 01 - 0000 1234 109 years Seleucid -- Parthian wars - 999999999762 - 01 - 01 - 0000 238 BC - 999999999871 - 01 - 01 - 0000 129 BC 109 years Georgian -- Seljuk wars 000000001099 - 01 - 01 - 0000 1099 000000001203 - 01 - 01 - 0000 1203 104 years Russo - Circassian War 000000001763 - 01 - 01 - 0000 1763 000000001864 - 01 - 01 - 0000 1864 101 years Xhosa Wars 000000001779 - 01 - 01 - 0000 1779 000000001889 - 01 - 01 - 0000 1889 110 years Tuareg rebellion 000000001916 - 01 - 01 - 0000 1916 Ongoing 101 years Kurdish separatism in Iran 000000001918 - 01 - 01 - 0000 1918 Ongoing 99 years Kurdish rebellions in Turkey 000000001921 - 03 - 06 - 0000 6 March 1921 Ongoing 96 years, 7 months, 4 weeks and 2 days Afghan -- Sikh Wars 000000001751 - 01 - 01 - 0000 1751 000000001837 - 01 - 01 - 0000 1837 86 years Iraqi -- Kurdish conflict 000000001918 - 01 - 01 - 0000 1918 000000002003 - 01 - 01 - 0000 2003 85 years Dagohoy Rebellion 000000001744 - 01 - 24 - 0000 24 January 1744 000000001829 - 08 - 31 - 0000 31 August 1829 85 years, 7 months and 1 week Anglo - Afghan War 000000001839 - 01 - 01 - 0000 1839 000000001919 - 01 - 01 - 0000 1919 80 years Eighty Years ' War 000000001568 - 01 - 01 - 0000 1568 000000001648 - 01 - 01 - 0000 1648 80 years Spanish conquest of Petén 000000001618 - 01 - 01 - 0000 1618 000000001697 - 01 - 01 - 0000 1697 79 years Muslim conquest of Transoxiana 000000000673 - 01 - 01 - 0000 673 000000000751 - 01 - 01 - 0000 751 78 years Anglo - Ashanti wars 000000001823 - 01 - 01 - 0000 1823 000000001900 - 01 - 01 - 0000 1900 77 years Umayyad conquest of Hispania 000000000711 - 01 - 01 - 0000 711 000000000788 - 01 - 01 - 0000 788 77 years Muslim conquest of Sicily 000000000827 - 06 - 01 - 0000 June 827 000000000902 - 08 - 01 - 0000 August 902 75 years and 2 months Apache Wars 000000001849 - 01 - 01 - 0000 1849 000000001924 - 01 - 01 - 0000 1924 75 years Jewish -- Roman wars 000000000066 - 01 - 01 - 0000 66 000000000136 - 01 - 01 - 0000 136 70 years Dzungar -- Qing Wars 000000001687 - 01 - 01 - 0000 1687 000000001758 - 01 - 01 - 0000 1758 71 years Indo - Pakistani wars 000000001947 - 10 - 22 - 0000 22 October 1947 Ongoing 70 years and 2 weeks Rohingya insurgency in Western Myanmar 000000001947 - 01 - 01 - 0000 1947 Ongoing 70 years Internal conflict in Myanmar 000000001948 - 01 - 01 - 0000 1948 Ongoing 69 years Israeli -- Palestinian conflict 000000001948 - 01 - 01 - 0000 1948 Ongoing 69 years Israeli -- Lebanese conflict 000000001948 - 05 - 14 - 0000 14 May 1948 Ongoing 69 years, 5 months, 3 weeks and 1 day Arab -- Israeli conflict 000000001948 - 05 - 15 - 0000 15 May 1948 Ongoing 69 years, 5 months and 3 weeks Balochistan conflict 000000001948 - 01 - 01 - 0000 1948 Ongoing 69 years Pacification of Algeria 000000001835 - 01 - 01 - 0000 1835 000000001903 - 01 - 01 - 0000 1903 68 years Kashmir conflict 000000001948 - 10 - 22 - 0000 22 October 1948 Ongoing 69 years and 2 weeks Afghanistan -- Pakistan skirmishes 000000001949 - 01 - 01 - 0000 1949 Ongoing 68 years Karen conflict 000000001949 - 01 - 01 - 0000 1949 Ongoing 68 years Civil war between the Bamar people and the Karen people that has been ongoing since 1948, little less than a year after Myanmar gained independence from the British. Korean War ( Fatherland Liberation War ) 000000001950 - 01 - 01 - 0000 1950 Ongoing ( Korean Armistice Agreement in 1953 ) 67 years Argentine Civil Wars 000000001814 - 01 - 01 - 0000 1814 000000001880 - 01 - 01 - 0000 1880 66 years Italian Wars 000000001494 - 01 - 01 - 0000 1494 000000001559 - 01 - 01 - 0000 1559 65 years Darfurs Civil War 000000001722 - 01 - 01 - 0000 1722 000000001786 - 01 - 01 - 0000 1786 46 years Ethnic conflict in Nagaland 000000001954 - 01 - 01 - 0000 1954 Ongoing 63 years Muslim conquest of the Maghreb 000000000647 - 01 - 01 - 0000 647 000000000709 - 01 - 01 - 0000 709 62 years Sudanese Civil Wars 000000001955 - 08 - 18 - 0000 18 August 1955 Ongoing 62 years, 2 months, 2 weeks and 4 days Sixty Years ' War 000000001754 - 01 - 01 - 0000 1754 000000001814 - 01 - 01 - 0000 1814 60 years Dutch -- Portuguese War 000000001601 - 01 - 01 - 0000 1601 000000001661 - 01 - 01 - 0000 1661 60 years Lelantine War - 999999999290 - 01 - 01 - 0000 710 BC - 999999999350 - 01 - 01 - 0000 650 BC 60 years Italian unification 000000001815 - 01 - 01 - 0000 1815 000000001871 - 01 - 01 - 0000 1871 56 years South Thailand insurgency 000000001960 - 01 - 01 - 0000 1960 Ongoing 57 years Xinjiang conflict 000000001960 - 01 - 01 - 0000 1960 Ongoing 57 years Texas -- Indian wars 000000001820 - 01 - 01 - 0000 1820 000000001875 - 01 - 01 - 0000 1875 55 years Papua conflict 000000001962 - 01 - 01 - 0000 1962 Ongoing 55 years Moro attacks on Sabah 000000001962 - 01 - 01 - 0000 1962 Ongoing 55 years Insurgency in Northeast India 000000001963 - 01 - 01 - 0000 1963 Ongoing 54 years Colombian Conflict 000000001964 - 01 - 01 - 0000 1964 Ongoing 53 years Basque conflict 000000001959 - 01 - 01 - 0000 1959 000000002011 - 01 - 01 - 0000 2011 52 years Bulgarian -- Ottoman wars 000000001344 - 01 - 01 - 0000 1344 000000001396 - 01 - 01 - 0000 1396 52 years Galicia -- Volhynia Wars 000000001340 - 01 - 01 - 0000 1340 000000001392 - 01 - 01 - 0000 1392 52 years Insurgency in Manipur 000000001964 - 11 - 24 - 0000 24 November 1964 Ongoing 52 years, 11 months, 1 week and 5 days Communist insurgency in Myanmar 000000001939 - 01 - 01 - 0000 1939 000000001989 - 01 - 01 - 0000 1989 50 years Byzantine conquest of Bulgaria 000000000968 - 01 - 01 - 0000 968 000000001018 - 01 - 01 - 0000 1018 50 years Greco - Persian Wars - 999999999501 - 01 - 01 - 0000 499 BC - 999999999551 - 01 - 01 - 0000 449 BC 50 years Naxalite -- Maoist insurgency 000000001967 - 05 - 18 - 0000 18 May 1967 Ongoing 50 years, 5 months, 2 weeks and 4 days Comanche -- Mexico Wars 000000001821 - 01 - 01 - 0000 1821 000000001870 - 01 - 01 - 0000 1870 49 years Wars of the Diadochi - 999999999678 - 01 - 01 - 0000 322 BC - 999999999725 - 01 - 01 - 0000 275 BC 47 years Civil conflict in the Philippines 000000001969 - 01 - 01 - 0000 1969 Ongoing 48 years CPP -- NPA -- NDF rebellion 000000001969 - 03 - 29 - 0000 29 March 1969 Ongoing 48 years, 7 months and 1 week Moro conflict 000000001969 - 03 - 29 - 0000 29 March 1969 Ongoing 48 years, 7 months and 1 week Caucasian War 000000001817 - 01 - 01 - 0000 1817 000000001864 - 01 - 01 - 0000 1864 47 years Western Sahara conflict 000000001970 - 01 - 01 - 0000 1970 Ongoing 47 years Chadian Civil Wars 000000001965 - 01 - 01 - 0000 1965 000000002010 - 01 - 01 - 0000 2010 45 years Kongo Civil War 000000001665 - 01 - 01 - 0000 1665 000000001709 - 01 - 01 - 0000 1709 44 years Sino - Dutch conflicts 000000001620 - 01 - 01 - 0000 1620 000000001662 - 01 - 01 - 0000 1662 42 years Thirty - Eight Years ' War 000000000770 - 01 - 01 - 0000 770 000000000811 - 01 - 01 - 0000 811 41 years Cabinda War 000000001975 - 11 - 08 - 0000 8 November 1975 Ongoing 41 years, 11 months and 4 weeks Insurgency in Laos 000000001975 - 12 - 03 - 0000 3 December 1975 Ongoing 41 years, 11 months and 2 days Bab al - Tabbaneh -- Jabal Mohsen conflict 000000001976 - 01 - 01 - 0000 1976 Ongoing 41 years Polish -- Czechoslovak border conflicts 000000001918 - 01 - 01 - 0000 1918 000000001958 - 01 - 01 - 0000 1958 40 years Spanish conquest of the Inca Empire 000000001532 - 01 - 01 - 0000 1532 000000001572 - 01 - 01 - 0000 1572 40 years Chichimeca War 000000001550 - 01 - 01 - 0000 1550 000000001590 - 01 - 01 - 0000 1590 40 years Umayyad invasion of Gaul 000000000719 - 01 - 01 - 0000 719 000000000759 - 01 - 01 - 0000 759 40 years Comanche Wars 000000001836 - 01 - 01 - 0000 1836 000000001875 - 01 - 01 - 0000 1875 39 years War in Afghanistan ( 1978 -- present ) 000000001978 - 04 - 27 - 0000 27 April 1978 Ongoing 39 years, 6 months, 1 week and 2 days Kurdish -- Turkish conflict ( 1978 -- present ) 000000001978 - 11 - 27 - 0000 27 November 1978 Ongoing 38 years, 11 months, 1 week and 2 days Assam separatist movements 000000001979 - 01 - 01 - 0000 1979 Ongoing 38 years Guatemalan Civil War 000000001960 - 01 - 01 - 0000 1960 000000001996 - 01 - 01 - 0000 1996 36 years Internal conflict in Peru 000000001980 - 05 - 17 - 0000 17 May 1980 Ongoing 37 years, 5 months, 2 weeks and 5 days French Wars of Religion 000000001562 - 01 - 01 - 0000 1562 000000001598 - 01 - 01 - 0000 1598 36 years Maoist insurgency in Turkey 000000001980 - 01 - 01 - 0000 1980 Ongoing 37 years Banana Wars 000000001898 - 01 - 01 - 0000 1898 000000001934 - 01 - 01 - 0000 1934 36 years Anglo - Powhatan Wars 000000001610 - 01 - 01 - 0000 1610 000000001646 - 01 - 01 - 0000 1646 36 years Holy Man 's Rebellion 000000001901 - 01 - 01 - 0000 1901 000000001936 - 01 - 01 - 0000 1936 35 years Ayutthaya - Lan Na War 000000001441 - 01 - 01 - 0000 1441 000000001474 - 01 - 01 - 0000 1474 33 years Wars of the Roses 000000001455 - 01 - 01 - 0000 1455 000000001487 - 01 - 01 - 0000 1487 32 years First War of Scottish Independence 000000001296 - 01 - 01 - 0000 1296 000000001328 - 01 - 01 - 0000 1328 32 years Casamance conflict 000000001982 - 01 - 01 - 0000 1982 000000002014 - 01 - 01 - 0000 2014 32 years Anglo - Mysore Wars 000000001767 - 01 - 01 - 0000 1767 000000001799 - 01 - 01 - 0000 1799 32 years Libyan resistance movement 000000001911 - 01 - 01 - 0000 1911 000000001943 - 01 - 01 - 0000 1943 32 years Second Viking Invasion of the British Isles 000000000980 - 01 - 01 - 0000 980 000000001012 - 01 - 01 - 0000 1012 32 years Aceh War 000000001873 - 01 - 01 - 0000 1873 000000001904 - 01 - 01 - 0000 1904 31 years Afaqi Khoja revolts 000000001826 - 01 - 01 - 0000 1826 000000001857 - 01 - 01 - 0000 1857 31 years Somali Civil War 000000001986 - 01 - 01 - 0000 1986 Ongoing 31 years The Troubles 000000001968 - 01 - 01 - 0000 1968 000000001998 - 01 - 01 - 0000 1998 30 years French conquest of Algeria 000000001827 - 01 - 01 - 0000 1827 000000001857 - 01 - 01 - 0000 1857 30 years Thirty Years ' War 000000001618 - 01 - 01 - 0000 1618 000000001648 - 01 - 01 - 0000 1648 30 years Eritrean War of Independence 000000001961 - 09 - 01 - 0000 1 September 1961 000000001991 - 05 - 29 - 0000 29 May 1991 29 years, 8 months and 4 weeks Murid War 000000001830 - 01 - 01 - 0000 1830 000000001859 - 01 - 01 - 0000 1859 29 years Lord 's Resistance Army insurgency 000000001987 - 01 - 01 - 0000 1987 Ongoing 30 years Portuguese Restoration War 000000001640 - 01 - 01 - 0000 1640 000000001668 - 01 - 01 - 0000 1668 28 years Nagorno - Karabakh conflict 000000001988 - 01 - 01 - 0000 1988 Ongoing 29 years Insurgency in Aceh 000000001976 - 12 - 04 - 0000 4 December 1976 000000002005 - 08 - 15 - 0000 15 August 2005 28 years, 8 months, 1 week and 4 days Intercommunal conflict in Mandatory Palestine 000000001920 - 03 - 01 - 0000 1 March 1920 000000001948 - 05 - 15 - 0000 15 May 1948 28 years, 2 months and 2 weeks Nicaraguan Revolution 000000001962 - 01 - 01 - 0000 1962 000000001990 - 01 - 01 - 0000 1990 28 years FULRO insurgency against Vietnam 000000001964 - 01 - 01 - 0000 1964 000000001992 - 01 - 01 - 0000 1992 28 years Communist insurgency in Sarawak 000000001962 - 12 - 01 - 0000 December 1962 000000001990 - 11 - 03 - 0000 3 November 1990 27 years, 10 months, 4 weeks and 1 day Peloponnesian War - 999999999569 - 01 - 01 - 0000 431 BC - 999999999596 - 01 - 01 - 0000 404 BC 27 years New Zealand Wars 000000001845 - 01 - 01 - 0000 1845 000000001872 - 01 - 01 - 0000 1872 27 years Insurgency in Jammu and Kashmir 000000001989 - 01 - 01 - 0000 1989 Ongoing 28 years Abkhaz -- Georgian conflict 000000001989 - 01 - 01 - 0000 1989 Ongoing 28 years Georgian -- Ossetian conflict 000000001989 - 01 - 01 - 0000 1989 Ongoing 28 years Communist insurgency in Sarawak 000000001962 - 12 - 01 - 0000 December 1962 000000001990 - 11 - 03 - 0000 3 November 1990 27 years, 10 months, 4 weeks and 1 day Sectarianism in Pakistan 000000001989 - 01 - 01 - 0000 1989 Ongoing 28 years Internal conflict in Bangladesh 000000001989 - 01 - 01 - 0000 1989 Ongoing 28 years Angolan Civil War 000000001975 - 01 - 01 - 0000 1975 000000002002 - 01 - 01 - 0000 2002 27 years Russo - Finnish wars 000000001918 - 01 - 27 - 0000 27 January 1918 000000001944 - 09 - 19 - 0000 19 September 1944 26 years, 7 months, 3 weeks and 2 days DHKP / C insurgency in Turkey 000000001990 - 04 - 01 - 0000 1 April 1990 Ongoing 27 years, 7 months and 4 days Mughal -- Maratha Wars 000000001681 - 09 - 01 - 0000 September 1681 000000001707 - 05 - 01 - 0000 May 1707 25 years and 8 months Livonian War 000000001558 - 01 - 01 - 0000 1558 000000001583 - 01 - 01 - 0000 1583 25 years Somali Civil War 000000001991 - 05 - 01 - 0000 May 1991 Ongoing 26 years and 6 months Sri Lankan Civil War 000000001983 - 07 - 23 - 0000 23 July 1983 000000002009 - 05 - 18 - 0000 18 May 2009 25 years, 9 months, 3 weeks and 4 days Spanish American wars of independence 000000001808 - 01 - 01 - 0000 1808 000000001833 - 01 - 01 - 0000 1833 25 years Oromo conflict 000000001992 - 01 - 01 - 0000 1992 Ongoing 25 years Insurgency in Meghalaya 000000001992 - 01 - 01 - 0000 1992 Ongoing 25 years Indonesian occupation of East Timor 000000001975 - 12 - 07 - 0000 7 December 1975 000000001999 - 10 - 31 - 0000 31 October 1999 23 years, 10 months, 3 weeks and 3 days South African Border war 000000001966 - 08 - 26 - 0000 26 August 1966 000000001990 - 03 - 21 - 0000 21 March 1990 24 years First Punic War - 999999999736 - 01 - 01 - 0000 264 BC - 999999999759 - 01 - 01 - 0000 241 BC 23 years Silesian Wars 000000001740 - 01 - 01 - 0000 1740 000000001763 - 01 - 01 - 0000 1763 23 years Laotian Civil War 000000001953 - 11 - 09 - 0000 9 November 1953 000000001975 - 12 - 02 - 0000 2 December 1975 22 years, 3 weeks and 2 days Second Sudanese Civil War 000000001983 - 01 - 01 - 0000 1983 000000002005 - 01 - 01 - 0000 2005 22 years Occupation of Araucanía 000000001861 - 01 - 01 - 0000 1861 000000001883 - 01 - 01 - 0000 1883 22 years Chiapas conflict 000000001994 - 01 - 01 - 0000 1994 Ongoing 23 years Insurgency in Ogaden 000000001994 - 01 - 01 - 0000 1994 Ongoing 23 years Norman conquest of England 000000001066 - 01 - 01 - 0000 1066 000000001088 - 01 - 01 - 0000 1088 22 years Kandyan Wars 000000001796 - 01 - 01 - 0000 1796 000000001818 - 01 - 01 - 0000 1818 22 years Little War in Hungary 000000001530 - 01 - 01 - 0000 1530 000000001552 - 01 - 01 - 0000 1552 22 years Communist insurgency in Malaysia ( 1968 -- 89 ) 000000001968 - 06 - 17 - 0000 17 June 1968 000000001989 - 12 - 02 - 0000 2 December 1989 21 years, 5 months, 2 weeks and 1 day Second Afar insurgency 000000001995 - 01 - 01 - 0000 1995 Ongoing 22 years United States occupation of Nicaragua 000000001912 - 01 - 01 - 0000 1912 000000001933 - 01 - 01 - 0000 1933 21 years Lazic War 000000000541 - 01 - 01 - 0000 541 000000000562 - 01 - 01 - 0000 562 21 years Great Northern War 000000001700 - 01 - 01 - 0000 1700 000000001721 - 01 - 01 - 0000 1721 21 years Ottoman conquest of Habesh 000000001557 - 01 - 01 - 0000 1557 000000001578 - 01 - 01 - 0000 1578 21 years Muslim conquest of Persia 000000000633 - 01 - 01 - 0000 633 000000000654 - 01 - 01 - 0000 654 21 years Allied Democratic Forces insurgency 000000001996 - 01 - 01 - 0000 1996 Ongoing 21 years Eumerella Wars 000000001840 - 01 - 01 - 0000 1840 000000001860 - 01 - 01 - 0000 1860 20 years War of the Sicilian Vespers 000000001282 - 01 - 01 - 0000 1282 000000001302 - 01 - 01 - 0000 1302 20 years Somaliland Campaign 000000001900 - 01 - 01 - 0000 1900 000000001920 - 01 - 01 - 0000 1920 20 years Chittagong Hill Tracts conflict 000000001977 - 01 - 01 - 0000 1977 000000001997 - 12 - 02 - 0000 2 December 1997 20 years, 3 weeks and 6 days Vietnam War 000000001955 - 11 - 01 - 0000 1 November 1955 000000001975 - 04 - 30 - 0000 30 April 1975 19 years, 5 months, 4 weeks and 1 day Byzantine -- Sasanian War of 572 -- 591 000000000572 - 01 - 01 - 0000 572 000000000591 - 01 - 01 - 0000 591 19 years United States occupation of Haiti 000000001915 - 07 - 28 - 0000 28 July 1915 000000001934 - 08 - 01 - 0000 1 August 1934 19 years and 4 days Miao Rebellion ( 1854 -- 73 ) 000000001854 - 01 - 01 - 0000 1854 000000001873 - 01 - 01 - 0000 1873 19 years Gothic War 000000000535 - 01 - 01 - 0000 535 000000000554 - 01 - 01 - 0000 554 19 years Al - Qaeda insurgency in Yemen 000000001998 - 01 - 01 - 0000 1998 Ongoing 19 years Communal conflicts in Nigeria 000000001998 - 01 - 01 - 0000 1998 Ongoing 19 years Jeroboam 's Revolt - 999999999069 - 01 - 01 - 0000 931 BC - 999999999087 - 01 - 01 - 0000 913 BC 18 years Communist insurgency in Thailand 000000001965 - 01 - 01 - 0000 1965 000000001983 - 01 - 01 - 0000 1983 18 years Basmachi movement 000000001916 - 01 - 01 - 0000 1916 000000001934 - 01 - 01 - 0000 1934 18 years Mahdist War 000000001881 - 01 - 01 - 0000 1881 000000001899 - 01 - 01 - 0000 1899 18 years Second Punic War - 999999999782 - 01 - 01 - 0000 218 BC - 999999999799 - 01 - 01 - 0000 201 BC 17 years Ethiopian Civil War 000000001974 - 09 - 12 - 0000 12 September 1974 000000001991 - 06 - 04 - 0000 4 June 1991 16 years, 8 months, 3 weeks and 2 days First Sudanese Civil War 000000001955 - 08 - 18 - 0000 18 August 1955 000000001972 - 03 - 27 - 0000 27 March 1972 16 years, 7 months, 1 week and 2 days Bolivian War of Independence 000000001809 - 01 - 01 - 0000 1809 000000001825 - 01 - 01 - 0000 1825 16 years Chilean War of Independence 000000001810 - 01 - 01 - 0000 1810 000000001821 - 01 - 01 - 0000 1821 or 000000001826 - 01 - 01 - 0000 1826 11 - 16 years Polish -- Ottoman War ( 1683 -- 99 ) 000000001683 - 01 - 01 - 0000 1683 000000001699 - 01 - 01 - 0000 1699 16 years Western Sahara War 000000001975 - 10 - 30 - 0000 30 October 1975 000000001991 - 09 - 06 - 0000 6 September 1991 15 years, 10 months and 1 week Great Turkish War 000000001683 - 07 - 14 - 0000 14 July 1683 000000001699 - 01 - 26 - 0000 26 January 1699 15 years, 6 months, 1 week and 5 days Lebanese Civil War 000000001975 - 04 - 13 - 0000 13 April 1975 000000001990 - 10 - 13 - 0000 13 October 1990 15 years and 6 months Rhodesian Bush War 000000001964 - 07 - 04 - 0000 4 July 1964 000000001979 - 12 - 12 - 0000 12 December 1979 15 years, 5 months, 1 week and 1 day War on Terror 000000002001 - 09 - 11 - 0000 11 September 2001 Ongoing 16 years, 1 month, 3 weeks and 4 days Morean War 000000001684 - 01 - 01 - 0000 1684 000000001699 - 01 - 01 - 0000 1699 15 years Long Turkish War 000000001591 - 01 - 01 - 0000 1591 000000001606 - 01 - 01 - 0000 1606 15 years Insurgency in the Maghreb ( 2002 -- present ) 000000002002 - 04 - 11 - 0000 11 April 2002 Ongoing 15 years, 6 months, 3 weeks and 4 days Cambodian -- Vietnamese War 000000001977 - 04 - 30 - 0000 30 April 1977 000000001991 - 10 - 23 - 0000 23 October 1991 14 years, 5 months, 3 weeks and 2 days Taliban insurgency 000000002002 - 01 - 01 - 0000 2002 Ongoing 15 years Jewish -- Babylonian War - 999999999399 - 01 - 01 - 0000 601 BC - 999999999414 - 01 - 01 - 0000 586 BC 15 years Third Indochina War 000000001978 - 01 - 01 - 0000 1978 000000001992 - 01 - 01 - 0000 1992 14 years Dhofar Rebellion 000000001962 - 01 - 01 - 0000 1962 000000001976 - 01 - 01 - 0000 1976 14 years Years of Lead ( Italy ) 000000001968 - 01 - 01 - 0000 1968 000000001982 - 01 - 01 - 0000 1982 14 years Taiping Rebellion 000000001850 - 01 - 01 - 0000 1850 000000001864 - 01 - 01 - 0000 1864 14 years Russo - Turkish War ( 1686 -- 1700 ) 000000001686 - 01 - 01 - 0000 1686 000000001700 - 01 - 01 - 0000 1700 14 years Abyssinian -- Adal war 000000001529 - 01 - 01 - 0000 1529 000000001543 - 01 - 01 - 0000 1543 14 years Marcomannic Wars 000000000166 - 01 - 01 - 0000 166 000000000180 - 01 - 01 - 0000 180 14 years Second Sino - Japanese War 000000001931 - 09 - 18 - 0000 18 September 1931 000000001945 - 09 - 09 - 0000 9 September 1945 13 years, 11 months, 3 weeks and 1 day War in Darfur 000000002003 - 02 - 26 - 0000 26 February 2003 Ongoing 14 years, 8 months, 1 week and 3 days War in Afghanistan ( 2001 -- 2014 ) 000000002001 - 10 - 07 - 0000 7 October 2001 000000002014 - 12 - 28 - 0000 28 December 2014 13 years, 2 months and 3 weeks Portuguese Colonial War 000000001961 - 02 - 04 - 0000 4 February 1961 000000001974 - 04 - 25 - 0000 25 April 1974 13 years, 2 months and 3 weeks Angolan War of Independence 000000001961 - 02 - 04 - 0000 4 February 1961 000000001974 - 04 - 25 - 0000 25 April 1974 13 years, 2 months and 3 weeks Darul Islam Rebellion 000000001949 - 08 - 01 - 0000 August 1949 -- 000000001962 - 09 - 02 - 0000 2 September 1962 000000001962 - 09 - 01 - 0000 September 1962 13 years, 3 weeks and 5 days War of the Spanish Succession 000000001702 - 07 - 09 - 0000 9 July 1702 000000001715 - 07 - 11 - 0000 11 July 1715 13 years and 2 days Conflict in the Niger Delta 000000002003 - 01 - 01 - 0000 2003 Ongoing 14 years Peruvian War of Independence 000000001811 - 01 - 01 - 0000 1811 000000001824 - 01 - 01 - 0000 1824 13 years Venezuelan War of Independence 000000001810 - 01 - 01 - 0000 1810 000000001823 - 01 - 01 - 0000 1823 13 years Wars of Alexander the Great - 999999999664 - 01 - 01 - 0000 336 BC - 999999999677 - 01 - 01 - 0000 323 BC 13 years War in North - West Pakistan 000000002004 - 03 - 16 - 0000 16 March 2004 Ongoing 13 years, 7 months, 2 weeks and 6 days Iran -- PJAK conflict 000000002004 - 04 - 01 - 0000 1 April 2004 Ongoing 13 years, 7 months and 4 days Napoleonic Wars 000000001803 - 05 - 18 - 0000 18 May 1803 000000001815 - 11 - 20 - 0000 20 November 1815 12 years, 6 months and 2 days Burundian Civil War 000000001993 - 10 - 21 - 0000 21 October 1993 000000002006 - 04 - 15 - 0000 15 April 2006 12 years, 5 months, 3 weeks and 4 days Haitian Revolution 000000001791 - 08 - 21 - 0000 21 August 1791 000000001804 - 01 - 01 - 0000 1 January 1804 12 years, 4 months, 1 week and 4 days Salvadoran Civil War 000000001979 - 10 - 15 - 0000 15 October 1979 000000001992 - 01 - 16 - 0000 16 January 1992 12 years, 3 months and 1 day Malayan Emergency 000000001948 - 06 - 16 - 0000 16 June 1948 000000001960 - 07 - 12 - 0000 12 July 1960 12 years, 3 weeks and 5 days Kivu conflict 000000002004 - 01 - 01 - 0000 2004 Ongoing 13 years Sistan and Baluchestan insurgency 000000002004 - 01 - 01 - 0000 2004 Ongoing 13 years Iraqi no - fly zones conflict 000000001991 - 01 - 01 - 0000 1991 000000002003 - 01 - 01 - 0000 2003 12 years Wars of the Three Kingdoms 000000001639 - 01 - 01 - 0000 1639 000000001651 - 01 - 01 - 0000 1651 12 years Cimbrian War - 999999999887 - 01 - 01 - 0000 113 BC - 999999999899 - 01 - 01 - 0000 101 BC 12 years Guinea - Bissau War of Independence 000000001963 - 01 - 23 - 0000 23 January 1963 000000001974 - 09 - 10 - 0000 10 September 1974 11 years, 7 months, 2 weeks and 4 days Paraguayan People 's Army insurgency 000000002005 - 08 - 27 - 0000 27 August 2005 Ongoing 12 years, 2 months, 1 week and 2 days Mexican War of Independence 000000001810 - 09 - 16 - 0000 16 September 1810 000000001821 - 09 - 27 - 0000 27 September 1821 11 years, 1 week and 4 days Dano - Swedish War ( 1501 -- 12 ) 000000001501 - 01 - 01 - 0000 1501 000000001512 - 01 - 01 - 0000 1512 11 years Pool Department insurgency 000000001997 - 01 - 01 - 0000 1997 000000002008 - 01 - 01 - 0000 2008 11 years Insurgency in Punjab 000000001984 - 01 - 01 - 0000 1984 000000001995 - 01 - 01 - 0000 1995 11 years Sino - Vietnamese conflicts 1979 -- 90 000000001979 - 01 - 01 - 0000 1979 000000001990 - 01 - 01 - 0000 1990 11 years Queen Anne 's War 000000001702 - 01 - 01 - 0000 1702 000000001713 - 01 - 01 - 0000 1713 11 years Sierra Leone Civil War 000000001991 - 03 - 23 - 0000 23 March 1991 000000002002 - 01 - 18 - 0000 18 January 2002 10 years, 9 months, 3 weeks and 5 days Nepalese Civil War 000000001996 - 02 - 13 - 0000 13 February 1996 000000002006 - 11 - 21 - 0000 21 November 2006 10 years, 9 months, 1 week and 1 day Houthi insurgency in Yemen 000000002004 - 06 - 18 - 0000 18 June 2004 000000002015 - 02 - 06 - 0000 6 February 2015 10 years, 7 months, 2 weeks and 5 days Yugoslav Wars 000000001991 - 03 - 31 - 0000 31 March 1991 000000002001 - 11 - 12 - 0000 12 November 2001 10 years, 7 months, 1 week and 5 days Gaza -- Israel conflict 000000002006 - 06 - 01 - 0000 June 2006 Ongoing 11 years and 5 months Mexican Drug War 000000002006 - 12 - 11 - 0000 11 December 2006 Ongoing 10 years, 10 months, 3 weeks and 4 days Algerian Civil War 000000001991 - 12 - 26 - 0000 26 December 1991 000000002002 - 02 - 08 - 0000 8 February 2002 10 years, 1 month, 1 week and 6 days Mexican Revolution 000000001910 - 01 - 01 - 0000 1910 000000001920 - 01 - 01 - 0000 1920 10 years Herzegovina uprising ( 1852 -- 62 ) 000000001852 - 01 - 01 - 0000 1852 000000001862 - 01 - 01 - 0000 1862 10 years See also List of wars extended by diplomatic irregularity References Jump up ^ McKitterick, Rosamond ; Collins, R. ( 1990 ). The New Cambridge Medieval. History 1. Cambridge University Press. p. 289. ISBN 9780521362924. Retrieved July 26, 2012. Jump up ^ Bowley, R.L. ( 2001 ). Scilly at war. St Mary 's : Bowley Publ. ISBN 0900184345. Jump up ^ Cruz, Eduardo Agustin ( 2010 ). The grand Araucanian wars ( 1541 -- 1883 ) in the kingdom of Chile. ( S.l. ) : Xlibris. ISBN 1450055281. Jump up ^ Corrigan, Gordon ( 2014 ). Great and glorious adventure : a history of the hundred years war and the birth of renaissance... ( S.l. ) : Pegasus Books. ISBN 978 - 1605985794. Jump up ^ Hart, Marjolein ' t ( 2011 ). Dutch wars of independence : the eighty years struggle, 1566 -- 1648. ( S.l. ) : Longman. ISBN 0582209676. Jump up ^ Charney, Michael W. ( 2009 ). A history of modern Burma ( 1. publ. 3. print. ed. ). New York : Cambridge University Press. ISBN 0521617588. Jump up ^ Ashley South ( 2003 ). Mon Nationalism and Civil War in Burma : The Golden Sheldrake, RoutledgeCurzon, London / New York, ISBN 0700716092 Jump up ^ Green, Peter ( 1996 ). The Greco - Persian wars ( ( Repr. ). ed. ). Berkeley, Calif. : Univ. of California Press. ISBN 0520205731. Jump up ^ Romm, James ( 2012 ). Ghost on the throne : the death of Alexander the Great and the war for crown and empire ( 1st ed. ). New York : Alfred A. Knopf. ISBN 0307271641. Jump up ^ Chauche, Victor Perera ; photographs by Daniel ( 1995 ). Unfinished conquest : the Guatemalan tragedy. Berkeley : University of California Press. ISBN 0520203496. Jump up ^ Jones, Dan ( 2014 ). Wars of the roses : the fall of the plantagenets and the rise of the tudors. ( S.l. ) : Viking. ISBN 0670026670. Jump up ^ Traquair, Peter ( 1998 ). Freedoms̓ sword. London : HarperCollins. ISBN 0004720792. Jump up ^ Martinkus, John ( 2004 ). Indonesia 's secret war in Aceh ( 1. publ. ed. ). Milsons Point, N.S.W. : Random House. ISBN 174051209X. access - date = requires url = ( help ) Jump up ^ Wilson, Peter H. ( 2011 ). The Thirty Years War : Europe 's tragedy ( 1st Harvard University Press pbk. ed. ). Cambridge, Mass. : Belknap Press of Harvard University Press. ISBN 0674062310. Jump up ^ Birmingham, David ( 2003 ). A concise history of Portugal ( 2. ed. ). Cambridge : Cambridge University Press. ISBN 0521536863. Jump up ^ Kagan, Donald ( 2004 ). The Peloponnesian War. New York : Penguin Books. ISBN 0142004375. Jump up ^ III, W. Martin James ( 2011 ). A political history of the civil war in Angola, 1974 -- 1990 ( Pbk. ed. ). New Brunswick, ( N.J. ), U.S.A. : Transaction Publishers. ISBN 1412815061. Jump up ^ Stevens, Carol B. ( 2007 ). Russia 's wars of emergence : 1460 -- 1730. Harlo ( u.a. ) : Pearson Longman. ISBN 0582218918. Jump up ^ Frost, Robert I. ( 2000 ). The northern wars : war, state, and society in northeastern Europe, 1558 -- 1721 ( ( Nachdr. ) ed. ). Harlow ( u.a. ) : Longman. ISBN 0582064295. Jump up ^ Karnow, Stanley ( 1997 ). Vietnam, a history ( 2nd rev. and updated ed. ). New York, N.Y. : Penguin Books. ISBN 0140265473. Jump up ^ Bowman, Karlyn ( July 24, 2008 ). `` America and the War on Terror '' ( PDF ). American Enterprise Institute for Public Policy Research. Retrieved April 3, 2010. Jump up ^ Rothenberg, Gunther E. ( 2006 ). The Napoleonic Wars. ( Washington, D.C. ) : Smithsonian Books. ISBN 006085121X. access - date = requires url = ( help ) Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_longest_wars&oldid=808881538 '' Categories : Lists of wars Hidden categories : Pages using citations with accessdate and no URL Wikipedia pages semi-protected from banned users All articles with unsourced statements Articles with unsourced statements from February 2016 Articles with unsourced statements from May 2016 Talk View source About Wikipedia Add links This page was last edited on 5 November 2017, at 20 : 05. About Wikipedia

Question: what has been the longest war in history
Answer: Reconquista