War By Ill1337 Period: Aug 15, 1096 to May 18, 1291 Crusades Period: May 24, 1337 to Oct 19, 1453 Hundred Years' War Period: Jul 30, 1419 to May 30, 1434 Hussite War Period: May 22, 1455 to Jun 16, 1487 Wars of the Roses Period: Jan 25, 1494 to Apr 3, 1559 Italian Wars Period: Aug 27, 1522 to Aug 11, 1712 European Wars of Religion Period: Aug 1, 1566 to Jan 30, 1648 Eighty Years' War Period: May 23, 1618 to Oct 24, 1648 Thirty Years' War Period: 1639 to 1653 British Civil Wars Period: 1652 to 1674 Anglo-Dutch Wars Period: Jul 14, 1683 to Jan 26, 1699 Great Turkish War Period: Sep 27, 1688 to Sep 20, 1697 Nine Years' War Period: Feb 22, 1700 to Sep 10, 1721 Great Northern War Period: Jul 9, 1701 to Feb 6, 1715 War of the Spanish Succession Period: Dec 16, 1740 to Oct 18, 1748 War of the Austrian Succession Period: May 17, 1756 to Feb 15, 1763 Seven Years' War Period: Nov 1, 1765 to May 12, 1784 American Revolution and American Revolutionary War Period: Jun 5, 1789 to Nov 20, 1815 French Revolution, French Revolutionary and Napoleonic Wars Period: Jun 18, 1812 to Feb 17, 1815 War of 1812 Period: Apr 25, 1846 to Feb 2, 1848 Mexican-American War Period: Mar 24, 1848 to May 8, 1851 First Schleswig War Period: Oct 16, 1853 to Mar 30, 1856 Crimean War Period: Apr 12, 1861 to May 26, 1865 American Civil War Period: Feb 1, 1864 to Oct 30, 1864 Second Schleswig War Period: Jun 14, 1866 to Jul 22, 1866 Austro-Prussian War Period: Jul 19, 1870 to Jan 28, 1871 Franco-Prussian War Period: Apr 21, 1898 to Aug 13, 1898 Spanish-American War Period: Feb 8, 1904 to Sep 5, 1905 Russo-Japanese War Period: Oct 8, 1912 to Aug 10, 1913 Balkan Wars Period: Jul 28, 1914 to Nov 11, 1918 World War I Period: Nov 7, 1917 to Jun 16, 1923 Russian Civil War Period: Jan 27, 1918 to May 15, 1918 Finnish Civil War Period: Oct 20, 1918 to Nov 9, 1919 German Revolution Period: Nov 1, 1918 to Jul 18, 1919 Polish-Ukrainian War Period: Jan 21, 1919 to Jul 11, 1921 Irish War of Independence Period: Feb 14, 1919 to Mar 18, 1921 Polish-Soviet War Period: May 15, 1919 to Oct 11, 1922 Greco-Turkish War Period: Jun 28, 1922 to May 24, 1923 Irish Civil War Period: Jan 11, 1923 to Aug 25, 1925 Occupation of the Ruhr Period: Jul 17, 1936 to Apr 1, 1939 Spanish Civil War Period: Sep 1, 1939 to Sep 2, 1945 World War II Period: Dec 19, 1946 to Apr 1, 1954 First Indochina War Period: Jun 25, 1950 to Jul 27, 1953 Korean War Period: Nov 1, 1955 to Apr 30, 1975 Vietnam War Period: Jun 23, 1956 to Nov 11, 1956 Hungarian Revolution Period: Aug 2, 1990 to Feb 28, 1991 Gulf War Period: Mar 31, 1991 to Nov 12, 2001 Yugoslav Wars