List of wars involving the United States

This is a list of wars and rebellions involving the United States of America. Currently, there are 105 wars on this list, 4 of which are ongoing.

  USA victory - 81

  Another result - 11 (e.g. a treaty or peace without a clear result, status quo ante bellum, result unknown or indecisive)

  USA defeat - 10

  Ongoing conflict - 4

18th-century wars

Conflict	Allies	Opponent(s)	Result for the United States and its Allies	Presidents of the United States
American Revolutionary War (1775–1783) Location: Eastern North America, Southern North America the Atlantic The Battle of Long Island, August 27, 1776	United States Kingdom of France Canadian Auxiliaries Spanish Empire Iroquois Oneida Tuscarora Watauga Association Catawba Lenape Choctaw Dutch Republic Mysore	Great Britain Loyalists German Auxiliaries Iroquois Onondaga Cayuga Seneca Cherokee	US-allied victory Treaty of Paris (1783) Britain recognizes the independence of the United States of America and the Thirteen Colonies.	President of the Continental Congress in American Revolutionary War: John Hancock Henry Laurens John Jay Samuel Huntington Thomas McKean John Hanson Elias Boudinot Thomas Mifflin Richard Henry Lee John Hancock Nathaniel Gorham Arthur St. Clair Cyrus Griffin
Cherokee–American wars (1776–1795) Part of the American Indian Wars Location: Old Southwest Abduction of Daniel Boone's daughter by the Cherokee	United States Choctaw	Cherokee	US-allied victory	President of the Continental Congress in Cherokee–American wars: John Hancock Henry Laurens John Jay Samuel Huntington Thomas McKean John Hanson Elias Boudinot Thomas Mifflin Richard Henry Lee John Hancock Nathaniel Gorham Arthur St. Clair Cyrus Griffin Presidents of the United States: George Washington
Northwest Indian War (1785–1793) Part of the American Indian Wars Location: Northwest Territory The Battle of Fallen Timbers	United States Chickasaw Choctaw	Western Confederacy List Council of Three Fires Iroquois Confederacy Seven Nations of Canada Wabash Confederacy (Wea, Piankashaw, and others) Illini Confederacy Wyandot Mississaugas Menominee Shawnee Lenape Miami Kickapoo Kaskaskia Chickamauga Cherokee (or "Lower Cherokee") Upper Muscogee Great Britain British North America	US-allied victory Treaty of Greenville (1795) American occupation of the Northwest Territory	George Washington
Quasi-War (1798–1800) 'Location: Atlantic Ocean, the Caribbean, the Indian Ocean and the Mediterranean USS Constellation vs. L'Insurgente	United States Co-belligerent: Great Britain	French Republic Guadeloupe	Convention of 1800 Peaceful cessation of Franco-American alliance End of French privateer attacks on American shipping American neutrality and renunciation of claims by France	John Adams

19th-century wars

Conflict	Allies	Opponent(s)	Result for the United States and its Allies	Presidents of the United States
First Barbary War (1801–1805) Part of the Barbary Wars Location: Mediterranean Sea off the coast of Tripoli Lieutenant Presley O'Bannon at Derna, April 1805	United States Sweden Kingdom of Sicily Malta Protectorate Kingdom of Portugal Sultanate of Morocco	Ottoman Tripolitania Sultanate of Morocco	US-allied victory	Thomas Jefferson
Tecumseh's War (1810–1813) Part of the American Indian Wars and the War of 1812 Location: Northwest River Ohio The Battle of Tippecanoe	United States	Tecumseh's Confederacy List Shawnee Red Sticks Ojibway Chickamauga Meskwaki Iroquois Miami Mingo Odawa Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot	US victory	James Madison
War of 1812 (1812–1815) Location: Eastern and Central North America General Andrew Jackson stands on the parapet of his makeshift defenses as his troops repulse attacking Highlanders, by painter Edward Percy Moran in 1910.	United States Choctaw Nation Cherokee Nation Creek Allies	United Kingdom British North America The Canadas Tecumseh's Confederacy List Shawnee Red Sticks Ojibway Chickamauga Meskwaki Iroquois Miami Mingo Odawa Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot Spain (1814)	Inconclusive/Other Result Treaty of Ghent Military stalemate; both sides' invasion attempts repulsed Status quo ante bellum Defeat of Tecumseh's Confederacy Burning of Washington including the White House and the Capitol
Creek War (1813–1814) Part of the American Indian Wars and the War of 1812 Location: Southern United States The Battle of Horseshoe Bend, 1814	United States Lower Creeks Cherokee Nation Choctaw Nation	Red Stick Creek	US-allied victory Treaty of Fort Jackson
Second Barbary War (1815) Part of the Barbary Wars Location: Mediterranean Sea and the Barbary States Decatur's squadron off Algiers	United States	Deylik of Algiers	US victory
First Seminole War (1817–1818) Part of the Seminole Wars and the American Indian Wars Location: Pensacola, Spanish Florida Barracks and tents at Fort Brooke near Tampa Bay	United States	Seminole Spanish Florida	US victory Spain cedes Spanish Florida to the United States in the Adams–Onís Treaty of 1819 The United States forcibly relocates Seminole in northern Florida to a reservation in the center of the peninsula in the Treaty of Moultrie Creek of 1823	James Monroe
Arikara War (1823) Part of the American Indian Wars Location: Missouri River An Arikara warrior	United States Sioux	Arikara	Inconclusive/Other Result White Peace treaty agreed by US Col Leavenworth
Winnebago War (1827) Part of the American Indian Wars Location: Illinois and Michigan Territory	United States Choctaw Nation	Prairie La Crosse Ho-Chunks with a few allies	US-allied victory Ho-Chunks cede lead mining region to the United States	John Quincy Adams
Black Hawk War (1832) Part of the American Indian Wars Location: Illinois and Michigan Territory Native women and children fleeing the Battle of Bad Axe	United States Ho-Chunk Menominee Dakota Potawatomi	Black Hawk's British Band Ho-Chunk and Potawatomi allies	US-allied victory End of Native armed resistance to U.S. expansion in the Old Northwest Black Hawk Purchase (1832) The United States purchases Potawatomi land in the Treaty of Tippecanoe (1832) The United States purchases the rest of Potawatomi land west of the Mississippi River in the Treaty of Chicago (1833)	Andrew Jackson
Second Seminole War (1835–1842) Part of the Seminole Wars and the American Indian Wars Location: Florida, United States U.S. Marines search for Seminoles in the Everglades	United States	Seminole	US victory Approximately 3,800 Seminoles transported to the Indian Territory Approximately 300 remain in Everglades	Andrew Jackson (March 4, 1829 – March 4, 1837) Martin Van Buren (March 4, 1837 – March 4, 1841) William Henry Harrison (March 4, 1841 – April 4, 1841) John Tyler (April 4, 1841 –March 4, 1845)
Texas Comanche Wars (1836–1875) Part of the Texas–Indian wars and the American Indian Wars Location: South-central United States (Texas, Oklahoma, New Mexico, Kansas, Colorado) and northern Mexico U.S. Marines search for Seminoles in the Everglades	Republic of Texas United States	Comanche	US victory	Andrew Jackson (March 4, 1829 – March 4, 1837) Martin Van Buren (March 4, 1837 – March 4, 1841) William Henry Harrison (March 4, 1841 – April 4, 1841) John Tyler (April 4, 1841 –March 4, 1845) James K. Polk (March 4, 1845 – March 4, 1849) Zachary Taylor (March 4, 1849 – July 9, 1850) Millard Fillmore (July 9, 1850 – March 4, 1853) Franklin Pierce (March 4, 1853 – March 4, 1857) James Buchanan (March 4, 1857 – March 4, 1861) Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869) Ulysses S. Grant (March 4, 1869 – March 4, 1877)
Mexican–American War (1846–1848) Location: Texas, New Mexico, California and Mexico 2nd Dragoons charge the enemy at the Battle of Resaca de la Palma, 1846	United States California Republic	Mexico	US-allied victory Treaty of Guadalupe Hidalgo Mexican Cession Mexican recognition of US sovereignty over Texas and California (among other territories)	James K. Polk
Cayuse War (1847–1855) Part of the American Indian Wars Location: Oregon The Whitman Massacre.	United States	Cayuse	US victory Cayuse reduced in numbers and forced to cede most of their lands	James K. Polk (March 4, 1845 – March 4, 1849) Zachary Taylor (March 4, 1849 – July 9, 1850) Millard Fillmore (July 9, 1850 – March 4, 1853) Franklin Pierce (March 4, 1853 – March 4, 1857)
Apache Wars (1849–1924) Part of the Texas–Indian wars and the American Indian Wars Location: Southwestern United States U.S. Cavalry dash for cover while fighting Apaches, by F. Remington	United States	Apache Ute Yavapai	US victory Apaches moved to reservations	James K. Polk (March 4, 1845 – March 4, 1849) Zachary Taylor (March 4, 1849 – July 9, 1850) Millard Fillmore (July 9, 1850 – March 4, 1853) Franklin Pierce (March 4, 1853 – March 4, 1857) James Buchanan (March 4, 1857 – March 4, 1861) Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869) Ulysses S. Grant (March 4, 1869 – March 4, 1877) Rutherford B. Hayes (March 4, 1877 – March 4, 1881) James A. Garfield (March 4, 1881 – September 19, 1881) Chester A. Arthur (September 19, 1881 – March 4, 1885) Grover Cleveland (March 4, 1885 – March 4, 1889) Benjamin Harrison (March 4, 1889 – March 4, 1893) Grover Cleveland (March 4, 1893 – March 4, 1897) William McKinley (March 4, 1897 – September 14, 1901) Theodore Roosevelt (September 14, 1901 – March 4, 1909) William Howard Taft (March 4, 1909 – March 4, 1913) Woodrow Wilson (March 4, 1913 – March 4, 1921) Warren G. Harding (March 4, 1921 – August 2, 1923) Calvin Coolidge (August 2, 1923 – March 4, 1929)
Navajo Wars (1849–1866) Part of the American Indian Wars Location: New Mexico Fort Defiance	United States	Navajo Nation	US victory Long Walk of the Navajo Navajos moved to reservations	James K. Polk (March 4, 1845 – March 4, 1849) Zachary Taylor (March 4, 1849 – July 9, 1850) Millard Fillmore (July 9, 1850 – March 4, 1853) Franklin Pierce (March 4, 1853 – March 4, 1857) James Buchanan (March 4, 1857 – March 4, 1861) Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869)
Bleeding Kansas (1854–1861) Location: Kansas and Missouri Sacking of Lawrence in 1856	Anti-slavery settlers (Free-Staters)	Pro-slavery settlers (Border Ruffians)	Free-Stater victory. Kansas admitted as a free state on January 29, 1861.	Franklin Pierce (March 4, 1853 – March 4, 1857) James Buchanan (March 4, 1857 – March 4, 1861)
Puget Sound War (1855–1856) Part of the American Indian Wars Location: Washington	United States Snoqualmie	Nisqually Muckleshoot Puyallup Klickitat Haida Tlingit	US victory Indians relocated to Siletz, Grand Ronde and Coast Reservations	Franklin Pierce
Rogue River Wars (1855–1856) Location: Rogue Valley	United States	Rogue River people	US victory Indians relocated to Siletz, Grand Ronde and Coast Reservations
Third Seminole War (1855–1858) Part of the Seminole Wars and the American Indian Wars Location: Pensacola, Florida	United States	Seminole	US victory By late 1850s, most Seminoles forced to leave their land; a few hundred remain deep in the Everglades on land unwanted by white settlers	Franklin Pierce (March 4, 1853 – March 4, 1857) James Buchanan (March 4, 1857 – March 4, 1861) Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869)
Yakima War (1855–1858) Part of the American Indian Wars Location: Washington Territory Seattleites evacuate to the town blockhouse as USS Decatur opens fire on advancing tribal forces.	United States Snoqualmie	Yakama Walla Walla tribe Umatilla tribe Nez Perce tribe Cayuse tribe	US victory
Second Opium War (1856–1859) Part of the Opium Wars Location: China Palikao's bridge, on the evening of the battle, by Émile Bayard	British Empire French Empire United States	China	US victory Treaties of Tientsin Kowloon Peninsula and Stonecutters Island ceded to the United Kingdom as part of British Hong Kong
Utah War (1857–1858) Part of the Mormon wars Location: Utah Territory and Wyoming	United States	Deseret/Utah Mormons (Nauvoo Legion)	Inconclusive/Other Result Resolution through negotiation Brigham Young replaced as governor of the territory Full amnesty for charges of sedition and treason issued to the citizens of Utah Territory by President James Buchanan on the condition that they accept American Federal authority
Reform War (1858–1866) Location: Mexico	Liberals United States	Conservatives	Liberals - US victory
Pig War (1859) Location: San Juan Islands Proposed boundaries:   Through Haro Strait, favored by the US   Through Rosario Strait, favored by Britain   Through San Juan Channel, compromise proposal The lines are as shown on maps of the time. The modern boundary follows straight line segments and roughly follows the blue line. The modern eastern boundary of San Juan County roughly follows the red line.	United States Washington Territory	United Kingdom Colony of Vancouver Island	Inconclusive Treaty of Washington Mostly a bloodless war – San Juan Islands awarded to the United States following third-party arbitration	James Buchanan
John Brown's Raid on Harpers Ferry (1859) Part of pre-Civil War conflicts Location: West Virginia Harper's Weekly illustration of U.S. Marines attacking John Brown's "Fort" Teresa Baine	United States	Abolitionist Insurgents	US victory
First and Second Cortina War (1859–1861) Location: Texas and Mexico	United States Confederate States Mexico	Cortinista bandits	US-allied victory
Paiute War (1860) Part of the American Indian Wars Location: Pyramid Lake, Nevada	United States	Paiute Shoshone Bannock	US victory
American Civil War (1861–1865) Location: Southern United States, Indian Territory, Northeastern United States, Western United States, Atlantic Ocean The Battle of Antietam, by Thure de Thulstrup.	United States Indian Home Guard Seminole Nation (Western) (most) Seminole Nation (Florida) Muskogee Nation (part)	Confederate States Cherokee Nation Choctaw Nation Catawba Chickasaw Nation (part) Muskogee Nation (part) Seminole Nation (Western) (part) Comanche Nation (part)	US victory Dissolution of the Confederate States U.S. territorial integrity preserved Beginning of the Reconstruction Era U.S. Federal government expands further control over land and railroad rights in the Indian Territory.	Abraham Lincoln
Yavapai Wars (1861–1875) Part of the American Indian Wars Location: Arizona Rescue of Lt. Charles King	United States	Yavapai Apache Yuma Mohave	US victory	Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869) Ulysses S. Grant (March 4, 1869 – March 4, 1877)
Dakota War of 1862 (1862) Part of the American Indian Wars Location: Minnesota and Dakota The Siege of New Ulm, Minnesota on August 19, 1862	United States	Dakota Sioux	US victory	Abraham Lincoln
Colorado War (1863–1865) Part of the American Indian Wars Location: Colorado, Wyoming, and Nebraska	United States	Cheyenne Arapaho Sioux	Inconclusive/Other Result Military and congressional hearings against John Chivington
Snake War (1864–1868) Part of the American Indian Wars Locations: Oregon, Nevada, California, and Idaho	United States	Paiute Bannock Shoshone	US victory	Abraham Lincoln (March 4, 1861 – April 15, 1865) Andrew Johnson (April 15, 1865 – March 4, 1869)
Powder River War (1865) Part of the American Indian Wars Location: Powder River State	United States	Sioux Cheyenne Arapaho	Inconclusive	Andrew Johnson
Red Cloud's War (1866–1868) Part of the American Indian Wars Location: Powder River State The Fetterman Massacre	United States Crow Nation	Lakota Cheyenne Arapaho	Lakota-allied victory Treaty of Fort Laramie (1868) Legal control of Powder River Country ceded to Native Americans Creation of the Great Sioux Reservation (including the Black Hills)
Formosa Expedition (1867) Location: Hengchun, Taiwan, Qing China' Attack of United States Marines and Sailors on the pirates of the island of Formosa, East Indies, Harper's Weekly	United States	Paiwan	Paiwan victory
Comanche Campaign (1867–1875) Part of the American Indian Wars Location: Western United States Battle of Beecher Island. One soldier and three horses have fallen, while others continue to wage the battle.	United States	Cheyenne Arapaho Comanche Kiowa	US victory	Andrew Johnson (April 15, 1865 – March 4, 1869) Ulysses S. Grant (March 4, 1869 – March 4, 1877)
United States expedition to Korea (1871) Location: Ganghwa Island The captured Sujagi aboard USS Colorado in June 1871	United States	Joseon dynasty	Inconclusive/Other Result American military victory American diplomatic failure Withdrawal of American forces Korea retains isolationist policies Eventual signing of the United States–Korea Treaty of 1882	Ulysses S. Grant
Modoc War (1872–1873) Part of the American Indian Wars Location: California and Oregon Engraving of soldiers recovering the bodies of the slain May 3, 1873.	United States	Modoc	US victory
Red River War (1874–1875) Part of the American Indian Wars Location: Texas	United States	Cheyenne Arapaho Comanche Kiowa	US victory End to the Texas-Indian Wars
Las Cuevas War (1875) Location: Texas and Mexico Texan soldiers.	United States	Mexican bandits	US victory Cattle returned to Texas
Great Sioux War of 1876 (1876–1877) Part of the American Indian Wars Location: Montana, Dakota and Wyoming Custer's last stand at Little Bighorn.	United States	Lakota Dakota Sioux Northern Cheyenne Arapaho	US victory Legal control of Powder River Country ceded to the United States
Buffalo Hunters' War (1876–1877) Part of the American Indian Wars Location: Texas and Oklahoma	United States	Comanche Apache	US victory
Nez Perce War (1877) Part of the American Indian Wars Location: Oregon, Idaho, Wyoming, and Montana Chief Joseph's band in the Battle of Bear Paw Mountain	United States	Nez Perce Palouse	US victory	Rutherford B. Hayes
Bannock War (1878) Part of the American Indian Wars Location: Idaho, Oregon, and Wyoming	United States	Bannock Shoshone Paiute	US victory
Cheyenne War (1878–1879) Part of the American Indian Wars Location: Oklahoma, Kansas, Nebraska, South Dakota and Montana Aftermath of the Battle of "The Pit."	United States	Cheyenne	US victory
Sheepeater Indian War (1879) Part of the American Indian Wars Location: Idaho	United States	Shoshone	US victory
Victorio's War (1879–1880) Part of the American Indian Wars Location: Mexico	United States Mexico	Apache	US-allied victory
White River War (1879) Part of the American Indian Wars Location: Colorado Battle of Milk Creek Canyon	United States	Ute	US victory
Egyptian Expedition (1882) Part of the Anglo-Egyptian War Location: Alexandria Front page of "Judge" magazine, 12 August 1882, featuring a cartoon by "JAW" concerning aid rendered by the American navy during the British bombardment of Alexandria.	United States	Egypt	US victory	Chester A. Arthur
Crow War (1887) Part of the American Indian Wars Location: Montana Crow Indians Firing into the Agency 1887	United States	Crow people	US victory	Grover Cleveland
Ghost Dance War (1890–1891) Part of the American Indian Wars Location: South Dakota Mass grave for the dead Lakota after the Wounded Knee Massacre.	United States	Sioux	US victory	Benjamin Harrison
Garza War (1891–1893) Location: Texas and Mexico 3rd Cavalry Troopers searching a suspected Revolutionist, 1892	Mexico United States	Garzistas	US-allied victory
Yaqui Wars (1896–1918) Part of the American Indian Wars Location: Arizona and Mexico 10th Cavalry soldiers holding Yaqui prisoners at their camp in Bear Valley, January 9, 1918.	United States Mexico	Yaqui Pima Opata	US-allied victory	Grover Cleveland (March 4, 1893 – March 4, 1897) William McKinley (March 4, 1897 – September 14, 1901) Theodore Roosevelt (September 14, 1901 – March 4, 1909) William Howard Taft (March 4, 1909 – March 4, 1913) Woodrow Wilson (March 4, 1913 – March 4, 1921)
Second Samoan Civil War (1898–1899) Location: Samoa Samoan warriors and American servicemen during the Siege of Apia in March 1899.	Samoa United States	Mataafans German Empire	Inconclusive/Other Result Allies and Rebels compromise for peace Tripartite Convention United States acquires American Samoa United Kingdom withdraws claim in exchange for concessions in the Solomon Islands Germany acquires German Samoa Mata'afa Iosefo becomes paramount chief of Samoa	William McKinley
Spanish–American War (1898) Location: Cuba, Puerto Rico, Philippines and Guam Theodore Roosevelt and the "Rough Riders" after the Battle of San Juan Hill.	United States Cuban Revolutionaries Filipino Revolutionaries	Spain Cuba Guam Philippines Puerto Rico	US-allied victory Treaty of Paris Protectorate over Cuba Collapse of the Spanish Empire
Philippine–American War (1899–1902) Location: Philippines U.S. soldiers during the Battle of Manila.	1899–1902 United States Military government 1902-1906 United States Civil government	1899–1902 Philippine Republic Negros Republic Zamboanga Republic Limited Foreign Support: Empire of Japan Shishi 1902-1906 Tagalog Republic Irrenconcilables	US victory Occupation of the Philippines Establishment of the Insular Government of the Philippine Islands General Emilio Aguinaldo captured Dissolution of the First Philippine Republic	William McKinley (March 4, 1897 – September 14, 1901) Theodore Roosevelt (September 14, 1901 – March 4, 1909)
Moro Rebellion (1899–1913) Location: Philippines American soldiers battling against Moro fighters.	United States	Moro Remnants of the Sulu Sultanate	US victory Total annexation of the Philippine Islands	William McKinley (March 4, 1897 – September 14, 1901) Theodore Roosevelt (September 14, 1901 – March 4, 1909) William Howard Taft (March 4, 1909 – March 4, 1913) Woodrow Wilson (March 4, 1913 – March 4, 1921)
Boxer Rebellion (1899–1901) Location: China U.S. soldiers during the Boxer Rebellion in China.	British Empire United Kingdom Australia New Zealand India Russian Empire Empire of Japan French Republic United States German Empire Kingdom of Italy Austro-Hungarian Empire China (until 1900)	Boxers China (from 1900)	US-allied victory Signing of the Boxer Protocol Provisions for foreign troops to be stationed in Beijing	William McKinley

20th-century wars

Conflict	Allies	Opponent(s)	Result for the United States and its Allies	Presidents of the United States
Crazy Snake's War (1909) Part of the American Indian Wars Location: Oklahoma Creek prisoners of war.	United States	Creek	US victory	Theodore Roosevelt (September 14, 1901 – March 4, 1909) Warren G. Harding (March 4, 1921 – August 2, 1923) Calvin Coolidge (August 2, 1923 – March 4, 1929)
Mexican Border War (1910–1919) Part of the Mexican Revolution Location: Mexico–United States border American troops of the 16th Infantry Regiment rest for the night on May 27, 1916	United States	Mexico Supported by: German Empire	US victory Seditionist insurgency suppressed Permanent border wall established Pancho Villa's troops no longer an effective fighting force Mexican Constitutionalist faction leader Venustiano Carranza recognised as the sole leaders of the Mexican government by the United States	William Howard Taft (March 4, 1909 – March 4, 1913) Woodrow Wilson (March 4, 1913 – March 4, 1921)
Little Race War (1912) Part of the Banana Wars Location: Cuba USS Mississippi in Cuba	Cuba United States	Cuban PIC	US-allied victory Dissolution of the PIC	William Howard Taft
United States occupation of Nicaragua (1912–1933) Part of the Banana Wars Location: Nicaragua US Marines holding a captured Sandinista flag.	United States Nicaragua	Nicaraguan Liberals Sandinistas	US victory Change of regime in Nicaragua Great Depression marks US withdrawal (1933)	William Howard Taft (March 4, 1909 – March 4, 1913) Woodrow Wilson (March 4, 1913 – March 4, 1921) Warren G. Harding (March 4, 1921 – August 2, 1923) Calvin Coolidge (August 2, 1923 – March 4, 1929) Herbert Hoover (March 4, 1929 – March 4, 1933)
Bluff War (1914–1915) Part of the American Indian Wars Location: Utah and Colorado Prisoners of the Bluff War in Thompson, Utah, waiting to board a train for their trial in Salt Lake City.	United States	Ute Paiute	US victory	Woodrow Wilson
United States occupation of Veracruz (1914) Part of the Mexican Revolution Location: Mexico American ships at Veracruz	United States Supported by: United Kingdom	Mexico Supported by: German Empire Kingdom of Italy	US victory
United States occupation of Haiti (1915–1934) Part of the Banana Wars Location: Haiti 2nd Marine Regiment in Haiti	United States Haiti	Haitian Rebels	US-allied victory	Woodrow Wilson (March 4, 1913 – March 4, 1921) Warren G. Harding (March 4, 1921 – August 2, 1923) Calvin Coolidge (August 2, 1923 – March 4, 1929) Herbert Hoover (March 4, 1929 – March 4, 1933) Franklin D. Roosevelt (March 4, 1933 – April 12, 1945)
United States occupation of the Dominican Republic (1916–1924) Part of the Banana Wars Location: Dominican Republic US Marines in the Occupation of the Dominican Republic.	United States	Dominican Republic	US victory	Woodrow Wilson (March 4, 1913 – March 4, 1921) Warren G. Harding (March 4, 1921 – August 2, 1923) Calvin Coolidge (August 2, 1923 – March 4, 1929)
World War I (1914–1918, direct U.S. involvement in 1917–1918) Location: Europe, Africa, Asia, Middle East, the Pacific Islands, and coast of North and South America US troops firing 37mm gun during an advance against German entrenched positions.	French Republic British Empire United Kingdom Canada Newfoundland Australia New Zealand Ceylon India South Africa Russian Empire (until 1917) Kingdom of Italy United States (since 1917) Empire of Japan Kingdom of Serbia Kingdom of Montenegro Kingdom of Romania Kingdom of Greece Belgium Portugal Republic of Armenia Idrisid Emirate of Asir Emirate of Nejd and Hasa Kingdom of Hejaz Republic of China Siam Brazil	German Empire Austro-Hungarian Empire Ottoman Empire Kingdom of Bulgaria	US-allied victory End of the German, Ottoman, and Austro-Hungarian empires; the October Revolution in U.S. ally Russia leads to the creation of the hostile Russian SFSR and Soviet Union Formation of new countries in Europe and the Middle East Transfer of German colonies and regions of the former Ottoman Empire to other powers Establishment of the League of Nations	Woodrow Wilson
Russian Civil War (1917–1923, direct U.S. involvement in 1918–1920) Location: Russia US troops march through Russia before the Battle of Romanovka.	White Movement Mountain Republic Makhnovshchina Left SR Green armies British Empire Japan Czechoslovakia Greece United States France Serbia Romania Italy China Mongolia	Russian SFSR Far Eastern Republic Mongolian Communists Makhnovshchina Left SR Green armies	Inconclusive/Other Result Victory for the Bolshevik Red Army in Russia, Ukraine, Belarus, South Caucasus, Central Asia, Tuva, and Mongolia; incorporation of those territories into the Russian SFSR and Soviet Union Victory for pro-independence movements in Finland, Estonia, Latvia, Lithuania, and Poland; expulsion of Bolshevik forces from those territories
Posey War (1923) Part of the American Indian Wars Location: Utah Ute and Paiute prisoners of war.	United States	Ute Paiute	US victory Last Indian uprising	Warren G. Harding
World War II (1939–1945, direct U.S. involvement in 1941–1945) Location: Europe, Pacific Ocean, Atlantic Ocean, Southeast Asia, East Asia, Middle East, Mediterranean, North Africa, Oceania, North and South America Six United States Marines raising the U.S. flag atop Mount Suribachi during the Battle of Iwo Jima.	Soviet Union (since 1941) United States (since 1941) British Empire United Kingdom Canada Australia New Zealand India and others French Republic Republic of Poland Czechoslovak Republic Kingdom of Yugoslavia Kingdom of Greece Denmark Norway Netherlands Belgium Luxembourg Republic of Cuba Republic of Haiti Argentina Brazil Mexico Chile Peru United States of Venezuela Liberia Kingdom of Egypt Ethiopian Empire Union of South Africa Sultanate of Muscat and Oman Kingdom of Nepal Republic of China Mongolian People's Republic Commonwealth of the Philippines Viet Minh Korean Provisional Government	Third Reich Empire of Japan Soviet Union (in 1939–1941) Kingdom of Italy Kingdom of Hungary Kingdom of Romania Kingdom of Bulgaria Slovak Republic Independent State of Croatia Finland Kingdom of Iraq Thailand Manchukuo Mengjiang	US-allied victory Collapse of Nazi Germany Fall of Japanese and Italian empires Creation of the United Nations Emergence of the United States and the Soviet Union as rival superpowers Beginning of the Cold War (1947–1989) Beginning of the Atomic Age Germany and Austria, as well as their capitals, Berlin and Vienna, respectively, divided into four occupation zones each, one for each of the United States, France, the United Kingdom, and the Soviet Union	Franklin D. Roosevelt (March 4, 1933 – April 12, 1945) Harry S. Truman (April 12, 1945 – January 20, 1953)
Korean War (1950–1953) Part of the Cold War Location: Korea U.S. soldier fires a 75mm recoilless rifle, near Oetlook-tong, Korea, in support of infantry units directly across the valley.	South Korea United Nations United States United Kingdom Australia Belgium Canada France Philippines Colombia Ethiopian Empire Kingdom of Greece Luxembourg Netherlands New Zealand Spanish State Union of South Africa Thailand Turkey	North Korea China Soviet Union Supported by: East Germany Czechoslovak Republic Hungarian People's Republic Polish People's Republic Socialist Republic of Romania People's Republic of Bulgaria Mongolian People's Republic	US-allied victory UNSC Resolution 83 goals achieved North Korean invasion of South Korea repelled South Korean statehood preserved Subsequent United Nations invasion of North Korea repelled Subsequent Chinese-North Korean invasion of South Korea repelled Korean Armistice Agreement	Harry S. Truman (April 12, 1945 – January 20, 1953) Dwight D. Eisenhower (January 20, 1953 – January 20, 1961)
Vietnam War (1955–1964, 1965–1973, 1974–1975) Part of the Cold War and Indochina Wars Location: Vietnam, Cambodia, and Laos 1st Cavalry Division, Battle of Ia Drang, 1965.	South Vietnam United States South Korea Australia New Zealand Thailand Philippines Kingdom of Laos Khmer Republic	North Vietnam Viet Cong Pathet Lao Khmer Rouge China Soviet Union North Korea Supported by: East Germany Czechoslovak Socialist Republic Hungarian People's Republic Polish People's Republic Socialist Republic of Romania People's Republic of Bulgaria Cuba	North Vietnam-allied victory Withdrawal of American forces from Indochina North Vietnamese victory over South Vietnam Dissolution of the Republic of Vietnam Communist governments take power in South Vietnam, Laos and Cambodia South Vietnam is annexed by North Vietnam Barricaded the spread of communism around and in Vietnam	Dwight D. Eisenhower (January 20, 1953 – January 20, 1961) John F. Kennedy (January 20, 1961 – November 22, 1963) Lyndon B. Johnson (November 22, 1963 – January 20, 1969) Richard Nixon (January 20, 1969 – August 9, 1974) Gerald Ford (August 9, 1974 – January 20, 1977)
Laotian Civil War (1959–1975) Part of the Indochina Wars and Cold War Location: Laos A U.S. Air Force Bell UH-1P from the 20th Special Operations Squadron "Green Hornets" at a base in Laos, 1970.	Kingdom of Laos United States South Vietnam Thailand Supported by: Philippines Taiwan	Pathet Lao North Vietnam Supported by: China Soviet Union East Germany Czechoslovak Socialist Republic Socialist Republic of Romania Cuba	Pathet Lao-allied victory Establishment of the Lao PDR
Permesta Rebellion (1958-1961) Location: Indonesia The capture of Allen Lawrence Pope.	Permesta United States	Indonesia	Indonesian government victory Permesta surrendered to Indonesia government	Dwight D. Eisenhower
Lebanon crisis (1958) Location: Lebanon US Marine sits in a foxhole and points his machine gun toward Beirut.	Lebanon United States	Lebanese opposition: INM LCP PSP	US-allied victory US-Lebanese occupation of the port and international airport of Beirut
Bay of Pigs Invasion (1961) Part of the Cold War Location: Cuba A4D-2 Skyhawks in flight over USS Essex during the Bay of Pigs Invasion in April 1961.	CDRF United States	Cuba	Cuban government victory United States sponsored Brigade 2506 (Cuban Exiles) defeated	John F. Kennedy
Dominican Civil War (1965–1966) Location: Dominican Republic US soldiers push a child underneath a Jeep to protect him during a firefight in Santo Domingo on May 5, 1965.	Dominican Loyalists United States IAPF Brazil Paraguay Nicaragua Costa Rica El Salvador Honduras	Dominican Constitutionalists	US-allied victory Fall of the Bosch regime Joaquín Balaguer elected as the new president	Lyndon B. Johnson
Korean DMZ Conflict (1966–1969) Part of the Korean conflict and the Cold War Location: Korean Demilitarized Zone ROK and US troop stationed at the DMZ, 1967.	South Korea United States	North Korea	US-allied victory North Korean failure to launch an insurgency in South Korea	Lyndon B. Johnson (November 22, 1963 – January 20, 1969) Richard Nixon (January 20, 1969 – August 9, 1974)
Cambodian Civil War (1967–1975) Part of the Cold War Location: Cambodia US troops and tanks entering town in Cambodia.	Kingdom of Cambodia (1967–1970) Khmer Republic (1970–1975) United States South Vietnam Supported by: Australia Canada France Thailand	National United Front of Kampuchea Khmer Rouge Khmer Rumdo Khmer Việt Minh North Vietnam Việt Cộng Supported by: China Soviet Union North Korea Czechoslovak Socialist Republic Socialist Republic of Romania Cuba	Khmer Rouge-allied victory Fall of the Kingdom of Cambodia Creation but eventual collapse of the Khmer Republic Creation of the Democratic Kampuchea Beginning of the Cambodian genocide	Lyndon B. Johnson (November 22, 1963 – January 20, 1969) Richard Nixon (January 20, 1969 – August 9, 1974) Gerald Ford (August 9, 1974 – January 20, 1977)
Multinational intervention in Lebanon (1982–1984) Location: Lebanon US Marines of the 32nd Marine Amphibious Unit come ashore to assume the management of the port of Beirut.	Lebanese Armed Forces UNIFIL Multinational Force in Lebanon: United States France United Kingdom Italy Israel Lebanese Front Army of Free Lebanon SLA	Lebanese National Movement Jammoul PLO Amal Movement Iran Islamic Revolutionary Guard Corps Hezbollah Islamic Jihad Organization Islamic Unification Movement Syria Arab Deterrent Force Saudi Arabia Sudan United Arab Emirates Libya South Yemen	Syrian-allied victory Multinational forces fail to prevent collapse of Lebanese Army into Syrian- or Israeli- supported militias Multinational forces evacuated after the US embassy and US Marine barracks are bombed by the Islamic Jihad Organization Multinational forces oversee withdrawal of Palestine Liberation Organization Humanitarian crisis in Southern Lebanon Civil war continues until 1990 President Hafez al-Assad continues his occupation of Lebanon until his son and later president Bashar al-Assad orders a withdrawal from the country	Ronald Reagan (January 20, 1981 – January 20, 1989)
United States invasion of Grenada (1983) Part of the Cold War Location: Grenada American soldiers in artillery positions at Grenada.	United States Barbados Jamaica Antigua and Barbuda Dominica Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines	PRG of Grenada Cuba Military advisors: List Soviet Union Bulgaria East Germany Libya	US-allied victory Military dictatorship of Hudson Austin deposed Defeat of Cuban military presence Restoration of constitutional government	Ronald Reagan
Bombing of Libya (1986) Location: Libya USAF F-111 taking off for Libya	United States	Libya	US victory Failed Libyan Scud missile response Muammar Gaddafi survives
Tanker War (1987–1988) Location: Persian Gulf Iranian frigate Sahand after being attacked by U.S. aircraft.	United States	Iran	US victory U.S. Navy sinks several ships and damages Iranian military installations used to attack U.S. and U.S. allied civilian shipping U.S. Navy vessel USS Vincennes shoots down civilian Iran Air Flight 655 killing all 290 passengers, among them 66 children Iran–Iraq War ends in August 1988 following UN enforcement of the ceasefire
United States invasion of Panama (1989–1990) Location: Panama U.S. troops prepare to take a neighborhood in Panama City, December 1989.	United States Panamanian Opposition	Panama	US-allied victory Dictator Manuel Noriega deposed	George H. W. Bush
Gulf War (1990–1991) Location: Iraq, Kuwait, Saudi Arabia, and Israel M1 Abrams tanks of the 3rd Armored Division advance on Medina Ridge.	Kuwait United States United Kingdom Saudi Arabia France Canada Egypt Syria Qatar Bahrain United Arab Emirates Oman	Iraq	US-allied victory Iraqi withdrawal from Kuwait; Emir Jaber III restored Sanctions against Iraq
Iraqi No-Fly Zone Enforcement Operations (1991–2003) Location: Iraq A Tomahawk cruise missile is fired from an Arleigh Burke-class destroyer during Operation Desert Fox in December 1998.	United States United Kingdom France Australia Belgium Netherlands Saudi Arabia Turkey Italy	Iraq	US-allied victory Periodic depletion of Iraqi air defenses	George H. W. Bush (January 20, 1989 – January 20, 1993) Bill Clinton (January 20, 1993 – January 20, 2001) George W. Bush (January 20, 2001 – January 20, 2009)
First U.S. Intervention in the Somali Civil War (1992–1995) Part of the Somali civil war (1991–present) Location: Somalia U.S. Marines on patrol in Somalia.	United States United Kingdom Spain Saudi Arabia Malaysia Pakistan Italy India Greece Germany France Canada Botswana Belgium Australia New Zealand	Somali National Alliance	Somali victory / US-allied defeat Failure to capture SNA leader Mohamed Farrah Aidid; specific Aidid lieutenants captured Withdrawal of U.S. forces 5 months after losses in the Battle of Mogadishu The UN mandate saved close to 100,000 lives, before and after U.S. withdrawal Civil war is ongoing	George H. W. Bush (January 20, 1989 – January 20, 1993) Bill Clinton (January 20, 1993 – January 20, 2001)
Bosnian War and Croatian War (1992–1995) Part of the Yugoslav Wars Location: Bosnia and Herzegovina and Croatia A U.S. Army M-113 Armor Personnel Carrier prepares to pull an armored Humvee out of the mud in Bosnia and Herzegovina.	Bosnia and Herzegovina Herzeg-Bosnia Croatia United States Belgium Canada Denmark France Germany Italy Luxembourg Netherlands Norway Portugal Spain Turkey United Kingdom	Republika Srpska Serbian Krajina Western Bosnia	Inconclusive/Other Result Military stalemate Dayton Accords Internal partition of Bosnia and Herzegovina Over 101,000 dead, 65,000 Bosniaks, 28,000 Serbs, 8,000 Croats Deployment of NATO-led IFOR to uphold the peace agreement High Representative for Bosnia and Herzegovina established to implement the peace agreement
Intervention in Haiti (1994–1995) Location: Haiti U.S. Marine guarding an area in Haiti.	United States Poland Argentina	Haiti	US-allied victory Reinstatement of Jean-Bertrand Aristide as president of Haiti	Bill Clinton
Kosovo War (1998–1999) Part of the Yugoslav Wars Location: Serbia A U.S. Air Force F-15E Strike Eagle takes off for an air strike mission.	KLA AFRK Albania Croatia United States Belgium Canada Czech Republic Denmark France Germany Hungary Italy Luxembourg Netherlands Norway Portugal Poland Spain Turkey United Kingdom	FR Yugoslavia	US-allied victory Ceasefire reached through Kumanovo Agreement of June 1999. after Russian and Finnish envoys visit Belgrade Yugoslav forces pull out of Kosovo UN Resolution 1244 confirming Kosovo as de jure part of FRY De facto separation of Kosovo from FR Yugoslavia under UN administration Return of Albanian refugees after attempted ethnic cleansing of Albanians KLA veterans join the UÇPMB, starting the Preševo insurgency Around 200,000 Serbs, Romani, and other non-Albanians fleeing Kosovo and many of the remaining civilians becoming victims of abuse Three Chinese journalists were killed in United States bombing of the Chinese embassy in Belgrade

21st-century wars

Conflict	Allies	Belligerent	Result for the United States and its Allies	Presidents of the United States
War in Afghanistan (2001–2021) Part of the War on terror and the Afghanistan conflict Location: Afghanistan U.S. soldiers from A Company, 101st Airborne Division Special Troop Battalion air assault into a village inside Jowlzak valley in Afghanistan.	Resolute Support Mission Afghanistan United States Canada United Kingdom Australia New Zealand Croatia Czech Republic Denmark Georgia Germany Netherlands Italy Romania Slovakia Spain Turkey Formerly: ISAF	Taliban Haqqani network Allied groups Hezb-e-Islami Gulbuddin al-Qaeda Islamic Jihad Union Islamic Movement of Uzbekistan Taliban splinter groups Fidai Mahaz IS-Affiliates: Islamic State – Khorasan Province 2001 Invasion: Islamic Emirate of Afghanistan Talibani Army Salafist extremists 055 Brigade	Taliban victory United States invasion of Afghanistan (2001) Destruction of al-Qaeda and Taliban militant training camps (2001) Fall of the Taliban government (2001) and Establishment of the Islamic Republic of Afghanistan Start of Taliban insurgency Osama bin Laden killed by DEVGRU operators in Abbottabad, Pakistan in May 2011 "Afghanization" of Afghan conflict. Withdrawal of most US troops by 2014 End of Operation Enduring Freedom; start of 2015 phase of war, and Operation Freedom's Sentinel. End of US and ISAF led combat mission; beginning of NATO-led training and assistance mission. Doha Agreement and progressive withdrawal of remaining US troops after 2020 Renewed Taliban offensive in 2021 Taliban forces capture Kabul on August 15, 2021, and overthrow the U.S.-backed Islamic Republic of Afghanistan Re-establishment of the Taliban-run Islamic Emirate of Afghanistan Panjshir Province held out against the Taliban for 3 weeks after Kabul was conquered but ended up also being conquered by the Taliban On 30 August 2021 the last American military plane departed Afghanistan. Billions of dollars of American military hardware left in Afghanistan within the reach of the Taliban	George W. Bush (October 7, 2001 – January 20, 2009) Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
American intervention in Yemen (2002–present) Part of the War on terror, the Al-Qaeda insurgency in Yemen, the Yemeni Civil War and the Saudi Arabian-led intervention in Yemen Location: Yemen MQ-1 Predator commonly used in drone strikes in Yemen.	United States CIA USAF Saudi-led coalition: Saudi Arabia United Arab Emirates Bahrain Kuwait Qatar Jordan Morocco Sudan Senegal Supported by: United States United Kingdom In support of: Cabinet of Yemen Yemen Armed Forces (pro-Hadi) Yemeni Air Force Popular Resistance	al-Qaeda in the Arabian Peninsula Ansar al-Sharia Islamic State of Iraq and the Levant – Yemen Province Revolutionary Committee/Supreme Political Council Houthi movement Yemen Armed Forces Yemeni Republican Guard	Ongoing 329 drone strikes confirmed 57 al-Qaeda in the Arabian Peninsula leaders confirmed killed Numerous al-Qaeda in the Arabian Peninsula bases destroyed Most recent drone strike against al-Qaeda launched in February 2023 Saudi-led coalition forces intervene in Yemen in 2015 to restore the internationally recognized Yemen government led by President Abdrabbuh Mansur Hadi United States support the Saudi Arabian-led intervention primarily through arms sales and technical assistance U.S. Army Special Forces deployed to the Saudi Arabia-Yemen border to help defeat the Houthi rebels in 2018.	George W. Bush (October 7, 2001 – January 20, 2009) Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
Iraq War (2003–2011) Part of the War on terror Location: Iraq U.S. soldiers at the Hands of Victory monument in Baghdad.	Post-invasion (2003–2011) United States Iraq United Kingdom MNF–I List Australia Romania Azerbaijan Jordan UAE Kuwait Estonia El Salvador Bulgaria Moldova Albania Ukraine Denmark Czech Republic South Korea Singapore Croatia Bosnia and Herzegovina North Macedonia Latvia Poland Kazakhstan Mongolia Georgia Tonga Japan Armenia Slovakia Lithuania Italy Norway Hungary Netherlands Portugal New Zealand Thailand Philippines Honduras Dominican Republic Spain Nicaragua Iceland Costa Rica Invasion phase (2003) United States United Kingdom Australia Poland Iraqi Kurdistan Supported by: Netherlands Italy Spain	Post-invasion (2003–2011) Ba'ath Loyalists Supreme Command for Jihad and Liberation Naqshbandi Army Sunni insurgents al-Qaeda in Iraq Islamic State of Iraq Ansar al-Sunnah Islamic Army of Iraq Shia insurgents Mahdi Army Special Groups Asa'ib Ahl al-Haq Invasion phase (2003) Iraq Ansar al-Islam	US-allied partial/temporary victory Invasion and occupation of Iraq Overthrow of Ba'ath Party government Execution of Saddam Hussein Emergence of significant insurgency, rise of al-Qaeda in Iraq, and severe sectarian violence Subsequent reduction in violence and depletion of al-Qaeda in Iraq Establishment of democratic elections and formation of new Shia-led government U.S.–Iraq Status of Forces Agreement Withdrawal of U.S. forces from Iraq in 2011 Stronger Iranian influence in Iraq Escalation of sectarian insurgency after U.S. withdrawal leading to the rise of the Islamic State of Iraq and the Levant, the successor of al-Qaeda in Iraq Iraqi Civil War (2013–2017) Return of US forces to Iraq in 2014	George W. Bush (January 20, 2001 – January 20, 2009) Barack Obama (January 20, 2009 – January 20, 2017)
American intervention in the War in North-West Pakistan (2004–2018) Part of the War on terror and the War in North-West Pakistan Location: Pakistan MQ-1 Predator drones typically used in covert bombing operations in Pakistan.	Pakistan United States USAF CIA Supported by: United Kingdom	Taliban Tehrik-i-Taliban Pakistan Haqqani network al-Qaeda Lashkar-e-Jhangvi Foreign Mujahideen Uzbek Islamic Movement Turkistan Islamic Party Tehreek-e-Nafaz-e-Shariat-e-Mohammadi Islamic State of Iraq and the Levant – Khorasan Province	US-allied victory 430 drone strikes confirmed 81 high-level insurgent leaders and thousands of low-level insurgents killed Deaths of Hafiz Saeed Khan, the leader (emir) of ISIS-K, Afghan Taliban head Akhtar Mansour, and successive TPP heads Baitullah Mehsud and Hakimullah Mehsud Destruction of numerous insurgent camps and safe havens Large number of insurgents killed while some fled to Afghanistan Most recent drone strike launched in January 2018	George W. Bush (January 20, 2001 – January 20, 2009) Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021)
Second U.S. Intervention in the Somali Civil War (2007–present) Part of the Somali Civil War, the Somali Civil War and the War on terror Location: Somalia and Northeastern Kenya U.S. Marines establish security positions at Baledogle Military Airfield in Somalia, December, 2020.	Somalia United States U.S. Army U.S. Marine Corps U.S. Air Force U.S. Navy U.S. Africa Command U.S. Special Operations Command AMISOM Burundi Djibouti Ethiopia Ghana Kenya Nigeria Sierra Leone Uganda Supported by: Italy Turkey United Kingdom Non-combat support: European Union United Nations UNSOM UNSOS UNGU	al-Shabaab Mujahideen Hizbul Islam Islamic State in Somalia	Ongoing Hundreds of drone strikes targeting the terrorist group al-Shabaab Raids against al-Shabaab militants conducted by U.S. Special Operations Forces African Union Intervention U.S. backed Ethiopian invasion in 2006 Kenyan intervention Newly formed federal government established in 2012 Power struggle within al-Shabaab Majority of US Troops withdraw in January 2021 US airstrikes against al-Shabaab in 2022 Redeployment of US troops in Somalia in 2022 Death of Islamic State in Somalia leader, Bilal al-Sudani on January 25, 2023 Approximately 450 U.S. troops remain in Somalia as of June 2023	George W. Bush (January 20, 2001 – January 20, 2009) Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
Operation Ocean Shield (2009–2016) Part of the War on terror Location: Indian Ocean A tall plume of black smoke rises from a destroyed pirate vessel that was struck by USS Farragut in March 2010.	NATO United States Belgium Canada Denmark Germany Greece Italy Netherlands Norway Portugal Spain Turkey United Kingdom Australia China Colombia India Indonesia Japan Malaysia New Zealand Oman Pakistan Russia Saudi Arabia Seychelles Singapore Somalia South Korea Ukraine	Somali pirates	US-allied victory Number of pirate attacks dramatically decreased The US Office of Naval Intelligence have officially reported that in 2013, only 9 incidents of piracy were reported and that none of them were successfully hijacked Piracy drops 90%	Barack Obama (January 20, 2009 – January 20, 2017)
International intervention in Libya (2011) Part of the Libyan Crisis and the First Libyan Civil War Location: Libya U.S. vessels launch missiles in support of Anti-Gaddafi rebels during the First Libyan Civil War.	NATO United States Belgium Bulgaria Canada Denmark France Greece Italy Netherlands Norway Romania Spain Turkey United Kingdom Sweden Jordan Qatar United Arab Emirates Anti-Gaddafi rebels	Libya	US-allied victory Overthrow of the Gaddafi government and the killing of Muammar Gaddafi Assumption of interim control by National Transitional Council (NTC) Diplomatic recognition of NTC as sole governing authority for Libya by 105 countries, UN, EU, AL and AU Post-civil war violence in Libya leading to the second civil war in 2014	Barack Obama (January 20, 2009 – January 20, 2017)
Operation Observant Compass (2011–2017) Part of the War on terror and the Lord's Resistance Army insurgency Location: Uganda U.S. Marine Sgt. Joseph Bergeron, a task force combat engineer, explains combat marksmanship tactics to a group of Ugandan soldiers.	United States Uganda DR Congo Central African Republic South Sudan	Lord's Resistance Army	US-allied victory Founder and leader of the LRA Joseph Kony goes into hiding Senior LRA commander Dominic Ongwen surrenders to American forces in the Central African Republic and is tried at the Hague Majority of LRA installations and encampments located in South Sudan and Uganda abandoned and dismantled Small scale LRA activity continues in eastern DR Congo, and the Central African Republic	Barack Obama (January 20, 2009 – January 20, 2017)
American military intervention in Niger (2013–present) Part of the Operation Juniper Shield Location: Niger American special forces training alongside Nigerien soldiers.	United States Supported by: Niger France	Islamic State of Iraq and Syria Islamic State – West Africa Province Islamic State in the Greater Sahara Boko Haram	Ongoing Approximately 800 U.S. troops remain in Niger as of January 2023	Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
American-led intervention in Iraq (2014–2021) Part of the Operation Inherent Resolve, the War in Iraq (2013–2017), the Spillover of the Syrian civil war, the War on terror and the International ISIS campaign Location: Iraq U.S. soldiers use a rooftop as an observation post, during the Battle of Mosul in Iraq, March, 2017.	United States Iraq Iraqi Kurdistan CJTF-OIR Members: Australia New Zealand Belgium Canada Denmark France Germany Italy Jordan Morocco Netherlands Turkey United Kingdom	Islamic State of Iraq and Syria White Flags	US-allied Coalition and Iraqi victory Tens of thousands of ISIL fighters killed American-led forces launch over 13,300 airstrikes on ISIL positions in Iraq Heavy damage dealt to ISIL forces, ISIL loses 40% of its territory in Iraq by January 2016 Iraq declares military victory against ISIL on 9 December 2017 Low-intensity ISIL insurgency following December 2017 Multinational humanitarian and arming of ground forces efforts 200 ISIL created mass graves found containing up to 12,000 people Ongoing US-led Coalition advising and training of Iraqi and Kurdish ground forces U.S. maintains limited military presence, approximately 2,500 U.S. military personnel remain in Iraq as of December 2021, providing assistance, advice and training to Iraqi forces U.S. forces have ended combat mission in Iraq in December 2021	Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
American-led intervention in Syria (2014–present) Part of the Operation Inherent Resolve, the Syrian civil war, the War on terror and the International ISIS campaign Location: Syria U.S. 1st Battalion, 6th Infantry Regiment troops conduct area reconnaissance patrol in Syria, February 2021.	United States Revolutionary Commando Army Authenticity and Development Front Free Syrian Army Autonomous Administration of North and East Syria Syrian Democratic Forces International Freedom Battalion People's Protection Units Women's Protection Units Al-Sanadid Forces Euphrates Volcano CJTF-OIR Members: Australia New Zealand Canada Belgium Denmark France Germany Italy Netherlands Romania United Kingdom Lebanon Morocco Jordan Saudi Arabia United Arab Emirates Qatar Bahrain Supported by: Iraq Kurdistan Regional Government Turkey Turkish-backed rebels Israel (limited involvement; against Hezbollah and government forces only)	Islamic State of Iraq and Syria al-Qaeda linked groups: al-Nusra Front Khorasan group Tahrir al-Sham Jaysh al-Sunna Jund al-Aqsa Rouse the Believers Guardians of Religion Organization Turkistan Islamic Party in Syria Ahrar al-Sham Syria (limited encounters with US and Israel) Supported by: Russia Iran Kata'ib Hezbollah	Ongoing Over 11,200 American and allied airstrikes hit ISIS and other extremist groups within Syria Thousands of ISIS targets destroyed and thousands more militants captured or killed ISIL lose Mosul and Raqqa (2017), then other most of territory in Iraq and then Syria Syrian government Chemical attack in Ghouta (2013) leading to OPCW-UN Joint Mission in Syria American support for anti-government rebels Deployment of U.S. Marines and Special Forces Massive amounts of human rights violations and war crimes, in particular by Syrian government forces Semi-regular chemical attacks attributed to the Assad regime leads to condemnation and threats of measures to enforce the chemical weapons convention and the Geneva protocol to which Syria is a party. Chemical attack in Khan Shaykhun results in a retaliatory naval strike on the Syrian government-controlled Shayrat Airbase, Douma chemical attack results in retaliatory strikes/ Various confrontations and airstrikes ISIS detainee crisis takes hold in northern Syria Death of Abu Bakr al-Baghdadi on October 27, 2019 Death of Abu Ibrahim al-Hashimi al-Qurashi on February 3, 2022 Approximately 900 U.S. troops remain in Syria to combat ISIS as of January 2023	Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021) Joe Biden (January 20, 2021 – Incumbent)
American intervention in Libya (2015–2019) Part of the Operation Inherent Resolve, the Second Libyan Civil War, the War on terror, and the International ISIS Campaign Location: Libya USS Wasp conducts flight operations in Operation Odyssey Lightning.	United States U.S. Air Force U.S. Marine Corps U.S. Special Forces United Kingdom Libya	Islamic State in Libya al-Qaeda in the Islamic Maghreb	ISIS in Libya largely defeated Liberation of Sirte Hundreds of airstrikes carried out in Libya against Islamic State affiliated militant groups ISIS presence in Libya severely diminished; airstrikes cease in 2019 Second Libyan Civil War continues until a permanent ceasefire was ratified on October 23, 2020	Barack Obama (January 20, 2009 – January 20, 2017) Donald Trump (January 20, 2017 – January 20, 2021)

See also

• List of armed conflicts involving the United States
• Military history of the United States
• Timeline of United States military operations

External links

• Heidelberg Institute for International Conflict Research (HIIK)
  • Conflict Barometer – Describes recent trends in conflict development, escalations, and settlements
• A Continent Divided: The U.S.-Mexico War, Center for Greater Southwestern Studies, the University of Texas at Arlington
• Timeline of wars involving the United States, Histropedia
• U.S. Periods of War and Dates of Recent Conflicts, Congressional Research Service