Wars
The big wars
The longest campaigns, by how many battles they took.
Franco-Prussian War58 battles · 1870 to 1871Greek War of Independence54 battles · 1821 to 1829Reconquista31 battles · 722 to 1492Genpei War26 battles · 1180 to 1185World War I26 battles · 1914 to 1918Napoleonic Wars21 battles · 1803 to 1815Norman Invasion of Wales19 battles · 1051 to 1204Ottoman Wars in Europe16 battles · 1354 to 1683American Indian Wars16 battles · 1609 to 1924Mughal–Sikh Wars16 battles · 1621 to 1788War of the Austrian Succession16 battles · 1740 to 1748Byzantine–Bulgarian Wars15 battles · 680 to 1355Byzantine–Seljuq Wars15 battles · 1048 to 1308Seven Years' War15 battles · 1756 to 1763Mahdist War15 battles · 1881 to 1899Argentine Civil Wars14 battles · 1814 to 1880Texas Revolution14 battles · 1835 to 1836Boshin War14 battles · 1868 to 1869Byzantine–Ottoman wars12 battles · 1265 to 1479Mexican Revolution12 battles · 1910 to 1920Germanic Wars11 battlesTaiping Rebellion10 battles · 1851 to 1864Chinese Civil War10 battles · 1927 to 1950Viking activity in the British Isles10 battles