1776 – American Revolutionary War, Chickamagua Wars, Second Cherokee War, Pennamite-Yankee War

1777 – American Revolutionary War, Chickamauga Wars, Second Cherokee War, Pennamite-Yankee War

1778 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1779 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1780 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1781 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1782 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1783 – American Revolutionary War, Chickamauga Wars, Pennamite-Yankee War

1784 – Chickamauga Wars, Pennamite-Yankee War, Oconee War

1785 – Chickamauga Wars, Northwest Indian War

1786 – Chickamauga Wars, Northwest Indian War

1787 – Chickamauga Wars, Northwest Indian War

1788 – Chickamauga Wars, Northwest Indian War

1789 – Chickamauga Wars, Northwest Indian War

1790 – Chickamauga Wars, Northwest Indian War

1791 – Chickamauga Wars, Northwest Indian War

1792 – Chickamauga Wars, Northwest Indian War

1793 – Chickamauga Wars, Northwest Indian War

1794 – Chickamauga Wars, Northwest Indian War

1795 – Northwest Indian War

1796 – No major war

1797 – No major war

1798 – Quasi-War

1799 – Quasi-War

1800 – Quasi-War

1801 – First Barbary War

1802 – First Barbary War

1803 – First Barbary War

1804 – First Barbary War

1805 – First Barbary War

1806 – Sabine Expedition

1807 – No major war

1808 – No major war

1809 – No major war

1810 – U.S. occupies Spanish-held West Florida

1811 – Tecumseh’s War

1812 – War of 1812, Tecumseh’s War, Seminole Wars, U.S. occupies Spanish-held Amelia Island and other parts of East Florida

1813 – War of 1812, Tecumseh’s War, Peoria War, Creek War, U.S. expands its territory in West Florida

1814 – War of 1812, Creek War, U.S. expands its territory in Florida, Anti-piracy war

1815 – War of 1812, Second Barbary War, Anti-piracy war

1816 – First Seminole War, Anti-piracy war

1817 – First Seminole War, Anti-piracy war

1818 – First Seminole War, Anti-piracy war

1819 – Yellowstone Expedition, Anti-piracy war

1820 – Yellowstone Expedition, Anti-piracy war

1821 – Anti-piracy war (see note above)

1822 – Anti-piracy war (see note above)

1823 – Anti-piracy war, Arikara War

1824 – Anti-piracy war

1825 – Yellowstone Expedition, Anti-piracy war

1826 – No major war

1827 – Winnebago War

1828 – No major war

1829 – No major war

1830 – No major war

1831 – Sac and Fox Indian War

1832 – Black Hawk War

1833 – Cherokee Indian War

1834 – Cherokee Indian War, Pawnee Indian Territory Campaign

1835 – Cherokee Indian War, Seminole Wars, Second Creek War

1836 – Cherokee Indian War, Seminole Wars, Second Creek War, Missouri-Iowa Border War

1837 – Cherokee Indian War, Seminole Wars, Second Creek War, Osage Indian War, Buckshot War

1838 – Cherokee Indian War, Seminole Wars, Buckshot War, Heatherly Indian War

1839 – Cherokee Indian War, Seminole Wars

1840 – Seminole Wars, U.S. naval forces invade Fiji Islands

1841 – Seminole Wars, U.S. naval forces invade McKean Island, Gilbert Islands, and Samoa

1842 – Seminole Wars

1843 – U.S. forces clash with Chinese, U.S. troops invade African coast

1844 – Texas-Indian Wars

1845 – Texas-Indian Wars

1846 – Mexican-American War, Texas-Indian Wars

1847 – Mexican-American War, Texas-Indian Wars

1848 – Mexican-American War, Texas-Indian Wars, Cayuse War

1849 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Skirmish between 1st Cavalry and Indians

1850 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Yuma War, California Indian Wars, Pitt River Expedition

1851 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Apache Wars, Yuma War, Utah Indian Wars, California Indian Wars

1852 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Yuma War, Utah Indian Wars, California Indian Wars

1853 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Yuma War, Utah Indian Wars, Walker War, California Indian Wars

1854 – Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Skirmish between 1st Cavalry and Indians

1855 – Seminole Wars, Texas-Indian Wars, Cayuse War, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Yakima War, Winnas Expedition, Klickitat War, Puget Sound War, Rogue River Wars, U.S. forces invade Fiji Islands and Uruguay

1856 – Seminole Wars, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, California Indian Wars, Puget Sound War, Rogue River Wars, Tintic War

1857 – Seminole Wars, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, California Indian Wars, Utah War, Conflict in Nicaragua

1858 – Seminole Wars, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, Mohave War, California Indian Wars, Spokane-Coeur d’Alene-Paloos War, Utah War, U.S. forces invade Fiji Islands and Uruguay

1859 Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, California Indian Wars, Pecos Expedition, Antelope Hills Expedition, Bear River Expedition, John Brown’s raid, U.S. forces launch attack against Paraguay, U.S. forces invade Mexico

1860 – Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Paiute War, Kiowa-Comanche War

1861 – American Civil War, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Cheyenne Campaign

1862 – American Civil War, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Cheyenne Campaign, Dakota War of 1862,

1863 – American Civil War, Texas-Indian Wars, Southwest Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Cheyenne Campaign, Colorado War, Goshute War

1864 – American Civil War, Texas-Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Cheyenne Campaign, Colorado War, Snake War

1865 – American Civil War, Texas-Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Colorado War, Snake War, Utah’s Black Hawk War

1866 – Texas-Indian Wars, Navajo Wars, Apache Wars, California Indian Wars, Skirmish between 1st Cavalry and Indians, Snake War, Utah’s Black Hawk War, Red Cloud’s War, Franklin County War, U.S. invades Mexico, Conflict with China

1867 – Texas-Indian Wars, Long Walk of the Navajo, Apache Wars, Skirmish between 1st Cavalry and Indians, Snake War, Utah’s Black Hawk War, Red Cloud’s War, Comanche Wars, Franklin County War, U.S. troops occupy Nicaragua and attack Taiwan

1868 – Texas-Indian Wars, Long Walk of the Navajo, Apache Wars, Skirmish between 1st Cavalry and Indians, Snake War, Utah’s Black Hawk War, Red Cloud’s War, Comanche Wars, Battle of Washita River, Franklin County War

1869 – Texas-Indian Wars, Apache Wars, Skirmish between 1st Cavalry and Indians, Utah’s Black Hawk War, Comanche Wars, Franklin County War

1870 – Texas-Indian Wars, Apache Wars, Skirmish between 1st Cavalry and Indians, Utah’s Black Hawk War, Comanche Wars, Franklin County War

1871 – Texas-Indian Wars, Apache Wars, Skirmish between 1st Cavalry and Indians, Utah’s Black Hawk War, Comanche Wars, Franklin County War, Kingsley Cave Massacre, U.S. forces invade Korea

1872 – Texas-Indian Wars, Apache Wars, Utah’s Black Hawk War, Comanche Wars, Modoc War, Franklin County War

1873 – Texas-Indian Wars, Comanche Wars, Modoc War, Apache Wars, Cypress Hills Massacre, U.S. forces invade Mexico

1874 – Texas-Indian Wars, Comanche Wars, Red River War, Mason County War, U.S. forces invade Mexico

1875 – Conflict in Mexico, Texas-Indian Wars, Comanche Wars, Eastern Nevada, Mason County War, Colfax County War, U.S. forces invade Mexico

1876 – Texas-Indian Wars, Black Hills War, Mason County War, U.S. forces invade Mexico

1877 – Texas-Indian Wars, Skirmish between 1st Cavalry and Indians, Black Hills War, Nez Perce War, Mason County War, Lincoln County War, San Elizario Salt War, U.S. forces invade Mexico

1878 – Paiute Indian conflict, Bannock War, Cheyenne War, Lincoln County War, U.S. forces invade Mexico

1879 – Cheyenne War, Sheepeater Indian War, White River War, U.S. forces invade Mexico

1880 – U.S. forces invade Mexico

1881 – U.S. forces invade Mexico

1882 – U.S. forces invade Mexico

1883 – U.S. forces invade Mexico

1884 – U.S. forces invade Mexico

1885 – Apache Wars, Eastern Nevada Expedition, U.S. forces invade Mexico

1886 – Apache Wars, Pleasant Valley War, U.S. forces invade Mexico

1887 – U.S. forces invade Mexico

1888 – U.S. show of force against Haiti, U.S. forces invade Mexico

1889 – U.S. forces invade Mexico

1890 – Sioux Indian War, Skirmish between 1st Cavalry and Indians, Ghost Dance War, Wounded Knee, U.S. forces invade Mexico

1891 – Sioux Indian War, Ghost Dance War, U.S. forces invade Mexico

1892 – Johnson County War, U.S. forces invade Mexico

1893 – U.S. forces invade Mexico and Hawaii

1894 – U.S. forces invade Mexico

1895 – U.S. forces invade Mexico, Bannock Indian Disturbances

1896 – U.S. forces invade Mexico

1897 – No major war

1898 – Spanish-American War, Battle of Leech Lake, Chippewa Indian Disturbances

1899 – Philippine-American War, Banana Wars

1900 – Philippine-American War, Banana Wars

1901 – Philippine-American War, Banana Wars

1902 – Philippine-American War, Banana Wars

1903 – Philippine-American War, Banana Wars

1904 – Philippine-American War, Banana Wars

1905 – Philippine-American War, Banana Wars

1906 – Philippine-American War, Banana Wars

1907 – Philippine-American War, Banana Wars

1908 – Philippine-American War, Banana Wars

1909 – Philippine-American War, Banana Wars

1910 – Philippine-American War, Banana Wars

1911 – Philippin