List of wars involving the United States

See also: Timeline of United States military operations and Timeline of United States at war

Part of a series on the
History of the United States
Timeline Prehistory Pre-Colonial Colonial period 1776–1789 1789–1849 1849–1865 1865–1918 1918–1945 1945–1964 1964–1980 1980–1991 1991–present
By ethnicity African American Asian American Chinese American Filipino American Japanese American Jewish American Mexican American Polish American
By topic Antisemitism Civil Rights 1896–1954 1955–1968 Civil War Culture Demographics Diplomacy Economics Historiography Labor Medicine Military Socialism Southern Frontier (Old West) Technology and industry Territory Women

This is a list of direct armed conflicts involving the United States of America since its founding during the American Revolution.

18th century wars

Conflict	Combatant 1	Combatant 2	Result
American Revolutionary War (1775–1783) Location: Eastern North America, Gibraltar, British India, Caribbean Sea, and the Atlantic The Surrender of Lord Cornwallis, which began negotiations between Great Britain and the United States.	United States France Spain Iroquois Oneida Tuscarora Watauga Association Catawba Lenape Choctaw Netherlands Mysore	Great Britain Loyalists German Auxiliaries Iroquois Onondaga Mohawk Cayuga Seneca Cherokee	Victory Treaty of Paris Britain recognizes the independence of the United States of America End of the "First British Empire"
Chickamunga War (1776–1795) Location: Old Southwest	United States	Cherokee	Victory
Northwest Indian War (1785–1793) Location: Northwest Territory A depiction of the Treaty of Greenville negotiations.	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	Victory Treaty of Greenville British withdrawal American occupation of the Northwest Territory
Whiskey Rebellion (1791–1794) Location: Western Pennsylvania George Washington reviews troops before their march to suppress the rebellion in western Pennsylvania.	United States	Frontier tax protesters	Victory Armed resistance eliminated. Minor tax evasion
Quasi-War (1798–1800) Part of the French Revolutionary Wars Location: Atlantic Ocean, the Caribbean, the Indian Ocean, and the Mediterranean U.S. Marines escorting French prisoners.	United States Co-belligerent: Great Britain	France Guadeloupe Co-belligerent: Spain	Indecisive Peaceful cessation of Franco-American alliance End of French privateer attacks on American shipping American neutrality and renunciation of claims against France

19th century wars

Conflict	Combatant 1	Combatant 2	Result for the United States and/or its Allies
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	Eyalet of Tripolitania Sultanate of Morocco	Victory Peace treaty
1811 German Coast Uprising (1811) Location: Territory of Orleans	United States	Rebel slaves Supported by: Haiti	Victory Suppression and later trials
Tecumseh's War (1811) Location: Northwest River Ohio	United States	Tecumseh's Confederacy List Shawnee Red Sticks Ojibway Chickamauga Meskwaki Iroquois Miami Mingo Odawa Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot	Victory Peace treaty
War of 1812 (1812–1815) Location: Eastern and Central North America The Battle of New Orleans, the final major battle and most one-sided engagement of the war.	United States Choctaw Cherokee Nation Creek Allies	United Kingdom British North America Tecumseh's Confederacy List Shawnee Red Sticks Ojibway Chickamauga Meskwaki Iroquois Miami Mingo Odawa Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot Spain (1814)	Stalemate Treaty of Ghent Status quo ante bellum with no boundary changes American invasions repulsed British invasions repulsed Defeat of Tecumseh's Confederacy
Creek War (1813–1814) Location: Southern United States William Weatherford surrendering to Andrew Jackson after the Battle of Horseshoe Bend.	United States Lower Creeks Cherokee Nation Choctaw	Red Stick Creek	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	Regency of Algiers	Victory Peace treaty
First Seminole War (1817–1818) Location: Pensacola, Florida Barracks and tents at Fort Brooke near Tampa Bay.	United States	Seminole Spanish Florida	Victory
Texas-Indian wars (1820–1875) Location: Texas A Kiowa ledger drawing depicting a battle between Southern Plains Indians and the U.S. Army during the Red River War.	Spain Mexico Republic of Texas United States	Comanche	Victory
Arikara War (1823) Location: Missouri River	United States	Arikara	Victory The Arikara eventually settled with the Mandan and Hidatsa on the Fort Berthold Reservation in North Dakota
Aegean Sea Anti-Piracy Operations (1825–1828) Location: Off Greece, Aegean Sea Greek pirate boats attacking the HMS Comet.	United States	Greek Pirates	Victory Defeat of Greek pirates HMS Comet liberated by American forces Message of thanks issued to Louis Goldsborough from the British government
Winnebago War (1827) Location: Illinois and Michigan Territory	United States	Prairie La Crosse Ho-Chunks with a few allies	Victory Ho-Chunks cede lead mining region to the United States
First Sumatran expedition (1832) Location: Aceh Sultanate U.S. Infantry assaulting the Acehnese forts at Kuala Batu in 1832.	United States Netherlands	Chiefdom of Kuala Batee	Victory
Black Hawk War (1832) Location: Illinois and Michigan Territory Native women and children fleeing the Battle of Bad Axe.	United States Ho-Chunk Menominee Dakota Potawatomi	Black Hawks British Band Ho-Chunk and Potawatomi allies	Victory
Second Seminole War (1835–1842) Location: Florida, United States This view of a Seminole village shows the log cabins they lived in prior to the disruptions of the Second Seminole War.	United States	Seminole	Victory 3,800 Seminoles transported to the Indian Territory 300 remain in Everglades
Patriot War (1838) Location: Great Lakes Basin The Battle of the Windmill, Prescott	United Kingdom Upper Canada United States	Republic of Canada Hunters' Lodge	Victory Defeat of Hunters' Lodges Navy Island retaken Republic of Canada collapses Unification of Upper and Lower Canada into the Province of Canada and democratic reforms to lessen social unrest
Second Sumatran expedition (1838) Location: Aceh Sultanate	United States Netherlands	Chiefdom of Kuala Batee	Victory
Mexican–American War (1846–1848) Location: Texas, New Mexico, California, and Mexico U.S. Marines storming Capultepec Castle under a large American flag. Now victorious, it paved the way for the Fall of Mexico City.	United States California Republic	Mexico	Victory Treaty of Guadalupe Hidalgo Mexican Cession Mexican recognition of Texas and California (among other territories) as independent; end of conflict between Mexico and Texas
Cayuse War (1847–1855) Location: Oregon	United States	Cayuse	Victory
Apache Wars (1851–1900) Location: Southwestern United States	United States	Apache Ute Yavapai	Victory Apaches moved to reservations
Bombardment of Greytown (1854) Location: British Protectorate of Greytown Bombardment of San Juan del Norte, shortly before being set ablaze by U.S. Marines.	United States	United Kingdom Miskito Kingdom	Victory Greytown occupied and destroyed Continued tax-free route to California End of Britain's occupation of Greytown
Puget Sound War (1855–1856) Location: Washington	United States Snoqualmie	Nisqually Muckleshoot Puyallup Klickitat Haida Tlingit	Victory Indians relocated to Siletz, Grande Ronde, and Coast Reservations
First Fiji Expedition (1855) Location: Fiji	United States	Fiji	Victory
Rogue River Wars (1855–1856) Location: Rogue Valley	United States	Rogue River people	Victory Indians relocated to Siletz, Grand Ronde, and Coast Reservations
Third Seminole War (1855–1858) Location: Pensacola, Florida A U.S. Marine boat expedition searching the Everglades during the Second Seminole War.	United States	Seminole	Victory
Yakima War (1855–1858) 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	Victory Peace treaty
Filibuster War (1855–1857) Location: Nicaragua Costa Rican and U.S. troops attacking William Walker at Rivas in 1856.	Nicaragua Costa Rica Honduras Mosquito Coast Guatemala El Salvador United States United Kingdom (naval support)	Filibusters	Victory Filibuster defeat William Walker surrenders to the U.S. navy.
Second Opium War (1856–1859) Location: China Palikao's bridge, on the evening of the battle, by Émile Bayard	British Empire French Empire United States	Qing dynasty	Victory Treaties of Tientsin Southern Kowloon ceded to the United Kingdom
Utah War (1857–1858) Location: Utah Territory and Wyoming	United States	Deseret / Utah Mormons (Nauvoo Legion)	Resolution 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
Navajo Wars (1858–1866) Location: New Mexico Fort Defiance	United States	Navajo	Victory Long Walk of the Navajo Navajos moved to reservations
Second Fiji Expedition (1859) Location: Fiji	United States	Fiji	Victory
John Brown's raid on Harpers Ferry (1859) Location: West Virginia Harper's Weekly illustration of U.S. Marines attacking John Brown's "Fort" Teresa Baine	United States	Abolitionist Insurgents	Victory
First and Second Cortina War (1859–1861) Location: Texas and Mexico	United States Confederate States	Mexican Paramilitary Forces	Victory
Paiute War (1860) Location: Pyramid Lake, Nevada	United States	Paiute Shoshone Bannock	Victory
American Civil War (1861–1865) Location: United States The Battle of Antietam, by Kurz & Allison.	United States	Confederate States	Victory Territorial integrity preserved Dissolution of the Confederacy Slavery abolished Lincoln assassinated Beginning of the Reconstruction Era
Bombardment of Qui Nhơn (1861) Part of the Cochinchina Campaign Location: Qui Nhơn, Vietnam	United States	Nguyễn Dynasty	Victory Vietnamese-held fort silenced
Yavapai Wars (1861–1875) Location: Arizona	United States	Yavapai Apache Yuma Mohave	Victory
Dakota War of 1862 (1862) Location: Minnesota and Dakota The Siege of New Ulm, Minnesota on August 19, 1862	United States	Dakota Sioux	Victory
Colorado War (1863–1865) Location: Colorado, Wyoming, and Nebraska	United States	Cheyenne Arapaho Sioux	Victory Military and congressional hearings against John Chivington
Shimonoseki War (1863–1864) Location: Kanmon Straits Capture of a Choshu battery at Shimonoseki by British sailors and marines.	British Empire Dutch Empire French Empire United States	Chōshū Domain	Victory Chōshū pays an indemnity of $3,000,000.
Snake War (1864–1868) Locations: Oregon, Nevada, California, and Idaho	United States	Paiute Bannock Shoshone	Victory
Powder River War (1865) Location: Powder River State	United States	Sioux Cheyenne Arapaho	Inconclusive
Red Cloud's War (1866–1868) Location: Powder River State	United States	Lakota Cheyenne Arapaho	Defeat 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: Southern Formosa	United States	Paiwan aboriginals	Indecisive Formosan retreat American withdrawal
Comanche Campaign (1867–1875) Location: Western United States	United States	Cheyenne Arapaho Comanche Kiowa	Victory
United States expedition to Korea (1871) Location: Ganghwado American forces after capturing the Deokjin Fort during the Battle of Ganghwa in 1871.	United States	Joseon Dynasty	Victory United States-Korea Treaty of 1882
Modoc War (1872–1873) Location: California and Oregon Engraving of soldiers recovering the bodies of the slain May 3, 1873.	United States	Modoc	Victory
Red River War (1874–1875) Location: Texas	United States	Cheyenne Arapaho Comanche Kiowa	Victory End to the Texas-Indian Wars
Las Cuevas War (1875) Location: Texas and Mexico Texan soldiers.	United States	Mexican militia	Victory Cattle returned to Texas
Great Sioux War of 1876 (1876–1877) Location: Montana, Dakota and Wyoming Custer's last stand at Little Bighorn.	United States	Lakota Dakota Northern Cheyenne Arapaho	Victory Legal control of Powder River Country ceded to the United States
Buffalo Hunters' War (1876–1877) Location: Texas and Oklahoma	United States	Comanche Apache	Victory
Nez Perce War (1877) Location: Oregon, Idaho, Wyoming, and Montana	United States	Nez Perce Palouse	Victory
San Elizario Salt War (1877–1878) Location: Texas	United States	Tejano militia	Victory Uprising suppressed
Bannock War (1878) Location: Idaho, Oregon, and Wyoming	United States	Bannock Shoshone Paiute	Victory
Cheyenne War (1878–1879) Location: Oklahoma, Kansas, Nebraska, South Dakota and Montana	United States	Cheyenne	Victory
Sheepeater Indian War (1879) Location: Idaho	United States	Shoshone	Victory
Victorio's War (1879–1881) Location: Mexico	United States Mexico	Apache	Victory
White River War (1879–1880) Location: Colorado	United States	Ute	Victory
Pine Ridge Campaign (1890–1891) Location: South Dakota Mass grave for the dead Lakota after the conflict at Wounded Knee Creek.	United States	Sioux	Victory
Garza Revolution (1891–1893) Location: Texas and Mexico	Mexico United States	Garzistas	Victory
Rio de Janeiro Affair (1894) Location: Guanabara Bay, Rio de Janeiro, Brazil Cruiser Detroit in the Guanabara Bay during the revolt	United States	Brazilian mutineers	Victory End of rebel blockade Rio de Janeiro reopened to American commerce
Yaqui Wars (1896-1918) 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	Victory
Second Samoan Civil War (1898–1899) Location: Samoa	Samoa United States	Mataafans Germany	Compromise 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
Spanish–American War (1898) Location: Cuba, Puerto Rico, Philippines and Guam Battle of Manila Bay painting.	United States Cuba Philippine Republic Katipunan	Spain: Cuba Guam Philippines Puerto Rico	Victory Treaty of Paris Protectorate over Cuba Collapse of the Spanish Empire Generation of '98 among Spanish intellectuals
Philippine–American War (1899–1902) Location: Philippines A group of Filipino combatants are photographed just as they lay down their weapons prior to their surrender.	United States	First Philippine Republic Tagalog Republic Pulajanes Sulu Sultanate Moro Republic of Zamboanga Republic of Negros	Victory Occupation of the Philippines Dissolution of the First Philippine Republic
Moro Rebellion (1899–1913) Philippines Aftermath of the First Battle of Bud Dajo.	United States	Moro Remnants of the Sulu Sultanate	Victory
Boxer Rebellion (1899–1901) Location: China The fall of Tianjin.	United Kingdom Russia Japan France United States Germany Italy Austria-Hungary	Righteous Harmony Society (Boxers) China	Victory The rebellion was suppressed Signing of the Boxer Protocol Provisions for foreign troops to be stationed in Beijing

20th century wars

Conflict	Combatant 1	Combatant 2	Result for the United States and/or its Allies
Crazy Snake Rebellion (1909) Location: Oklahoma Creek prisoners of war.	United States	Creek	Victory
Border War (1910–1919) Part of the Mexican Revolution Location: Mexico–United States border	United States	Mexican Carrancistas Villista Rebels German Empire (1918)	Victory Seditionist insurgency suppressed Battles between Mexican and American forces ceased in 1919 after the American/Carrancista victory in the Battle of Ciudad Juárez Pancho Villa's troops no longer an effective fighting force
Negro Rebellion (1912) Part of the Banana Wars Location: Cuba USS Mississippi in Cuba	Cuba United States	Cuban PIC	Victory Rebellion suppressed Dissolution of the PIC
Occupation of Nicaragua. (1912–1933) Part of the Banana Wars Location: Nicaragua Occupation of Nicaragua	United States Nicaragua	Nicaraguan Liberals Sandinistas	Victory Nicaragua occupied until 1933. Great Depression marked US withdrawal in 1933. Change of regime in Nicaragua.
Bluff War (1914–1915) 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	Victory
Occupation of Haiti. (1915–1934) Part of the Banana Wars Location: Haiti Occupation of Haiti	United States Haiti	Haitian Rebels	Victory Haiti occupied
Sugar Intervention (1916–1918) Part of the Banana Wars Location: Cuba	Cuba United States	Liberal Party of Cuba	Victory Uprising quelled.
Occupation of the Dominican Republic (1916–1924) Part of the Banana Wars Location: Dominican Republic Occupation of the Dominican Republic.	United States	Dominican Republic	Victory Dominican Republic occupied
World War I (1917–1918) Location: Europe, Africa, Asia, Middle East, the Pacific Islands, and coast of North and South America Two US troops pass by dead German soldiers on a battlefield.	France United Kingdom Russia United States China Italy Japan Canada Australia New Zealand India South Africa Hejaz Serbia Montenegro Romania Belgium Greece Portugal Brazil	Germany Austria-Hungary Ottoman Empire Bulgaria	Victory End of the German, Russian, Ottoman, and Austro-Hungarian empires 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
Russian Civil War (1918–1920) Location: Russia, Mongolia, and Iran US troops march through Russia before the Battle of Romanovka.	White movement British Empire United Kingdom Canada Australia India Japan Czechoslovakia Greece Poland United States France Romania Serbia Italy China	Russian SFSR Far Eastern Republic Latvian SSR Ukrainian SSR Commune of Estonia Mongolian communists	Indecisive Allied withdrawal from Russia Bolshevik victory over White Army Victory for pro-independence movements in Finland, Estonia, Latvia, Lithuania, and Poland
Posey War (1923) Location: Utah Ute and Paiute prisoners of war.	United States	Ute Paiute	Victory
World War II (1941–1945) Location: Europe, Pacific Ocean, Atlantic Ocean, Southeast Asia, Middle East, Mediterranean, North Africa, North and South America US troops in Okinawa.	Soviet Union United States United Kingdom China France Poland Canada Australia New Zealand India South Africa Mongolia Yugoslavia Greece Denmark Norway Netherlands Philippines Belgium Luxembourg Czechoslovakia Brazil Mexico Ethiopia Viet Minh KLA	Germany Japan Italy Hungary Romania Bulgaria Finland Thailand Manchukuo Mengjiang Croatia Slovakia Albania	Victory Collapse of the Third Reich Fall of Japanese and Italian Empires Creation of the United Nations Emergence of the United States and the Soviet Union as superpowers Beginning of the Cold War
Korean War (1950–1953) Part of the Cold War Location: Korea US and South Korean troops in combat.	South Korea United States United Kingdom Australia Belgium Canada Philippines Colombia Cuba Ethiopia Greece Japan Luxembourg Netherlands New Zealand South Africa Thailand Turkey Taiwan Guatemala El Salvador	North Korea China Soviet Union Mongolia India	Stalemate North Korean invasions of South Korea repelled Subsequent United Nations invasion of North Korea repelled Subsequent Chinese-North Korean-Soviet invasion of South Korea repelled Korean Armistice Agreement. Although this ended the actual fighting in the Korean Peninsula, the war is not (technically) over because a peace treaty was never signed
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	Victory US-Lebanese occupation of the port and international airport of Beirut Withdrawal of US forces
Bay of Pigs Invasion (1961) Part of the Cold War Location: Cuba	United States CDRF	Cuba	Defeat Invasion of Cuba suppressed Failed Castro assassination
Simba Rebellion (1964) Part of the Cold War Location: Democratic Republic of the Congo	Congo-Léopoldville Belgium United States	Simba rebels Cuba Tanganyikaa Soviet Union China	Victory Rebellion defeated.
Dominican Civil War (1965–1966) Location: Dominican Republic US soldiers arrive in the Dominican Republic.	United States Brazil Honduras Paraguay Nicaragua	Dominican Republic	Victory Juan Bosch excluded from Presidency Election of Joaquín Balaguer.
Vietnam War (1965–1973, 1975) Part of the Cold War and Indochina Wars Location: Vietnam, Cambodia, and Laos US soldiers gathered around dead Viet Cong troops.	South Vietnam United States South Korea Australia New Zealand Thailand Philippines Khmer Republic Kingdom of Laos	North Vietnam Viet Cong Khmer Rouge Pathet Lao China	Defeat 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
Communist insurgency in Thailand (1965–1983) Location: Thailand	Thailand Taiwan (until 1967) United States Malaysia	Communist Party of Thailand weapons and advisors: North Vietnam (until 1976) Vietnam (from 1976) Soviet Union People Republic of China (1971–1978) Pathet Lao Malayan Communist Party Khmer Rouge (until 1978) North Korea	Victory Defeat of communist insurgents.
Shaba II (1978) Location: Zaire (present-day Democratic Republic of the Congo)	Zaire France Belgium United States	Front for the National Liberation of the Congo	Victory
Multinational Force in Lebanon (1982-1984) Part of the Lebanese Civil War Location: Lebanon USS New Jersey fires a salvo from her 16-inch guns during a 1984 deployment off Beirut.	Italy United States France United Kingdom	Islamic Jihad Organization Iran Syria	Victory Multinational forces supervise withdrawal of Palestine Liberation Organization. Multiple Syrian AA guns and a command post destroyed
Invasion of Grenada (1983) Part of the Cold War Location: Grenada American soldiers in mortar positions in Grenada.	United States Caribbean Peace Force: Barbados Jamaica Organisation of Eastern Caribbean States	PRG of Grenada Cuba Military advisors: List Soviet Union North Korea East Germany Bulgaria Libya	Victory Military dictatorship of Hudson Austin deposed Defeat of Cuban military presence Restoration of Constitutional Government
Tanker War (1987–1988) Location: Persian Gulf Iranian frigate Sahand after being attacked by U.S. aircraft.	United States	Iran	Victory Successful operations against Iran during the Iran-Iraq war
Invasion of Panama (1989–1990) Location: Panama U.S. troops prepare to take a neighborhood in Panama City, December 1989.	United States	Panama	Victory Dictator Manuel Noriega deposed.
Gulf War (1990–1991) Location: Iraq, Kuwait, Saudi Arabia, and Israel Aftermath of a bombed US position.	Kuwait United States United Kingdom Saudi Arabia France Canada Egypt Syria Qatar Bahrain United Arab Emirates Oman Bangladesh	Iraq	Victory Iraqi withdrawal from Kuwait; Emir Jaber III restored Sanctions against Iraq
Somali Civil War (1992–1995) Location: Somalia American soldiers on patrol in Somalia.	United States United Kingdom Spain Saudi Arabia Malaysia Pakistan Italy India Greece Germany France Canada Botswana Belgium Australia	Somalia	Victory UN humanitarian mandate fulfilled. About 100,000 lives were saved by outside resistance. Civil war is ongoing.
Intervention in Haiti (1994–1995) Location: Haiti US troops arrive in Haiti.	United States Poland Argentina	Haiti	Victory Reinstatement of Jean-Bertrand Aristide as president of Haiti.
Bosnian War (1994–1995) Part of the Yugoslav Wars Location: Bosnia and Herzegovina UN forces deployed in Bosnia.	Bosnia and Herzegovina Herzeg-Bosnia Croatia United States Belgium Canada Denmark France Germany Italy Luxembourg Netherlands Norway Portugal Spain Turkey United Kingdom	Republika Srpska YPA Serbian Krajina Western Bosnia FR Yugoslavia	Victory Dayton Accords Internal partition of Bosnia and Herzegovina according to the Dayton Accords Deployment of NATO-led IFOR to oversee the peace agreement Massive civilian casualties for the Bosniak ethnic group
Kosovo War (1998–1999) Part of the Yugoslav Wars Location: Serbia Bombing in Kosovo.	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	Victory Kumanovo Treaty Yugoslav security forces pull out of Kosovo KLA veterans join the UÇPMB, starting the Preševo insurgency

21st century wars

Conflict	Combatant 1	Combatant 2	Result for the United States and/or its Allies
War in Afghanistan (2001–2014) Part of the War on Terror Location: Afghanistan U.S. troops of India Company, 3rd Battalion, 5th Marine Regiment during their clearing of the Sangin District.	United States Afghanistan ISAF United Kingdom Azerbaijan Germany Denmark Italy France Canada Australia New Zealand El Salvador Armenia Georgia Norway Sweden Poland Estonia Romania Turkey Bulgaria Hungary Luxembourg Portugal Jordan Albania Iceland Northern Alliance	Taliban Islamic Jihad Union Haqqani network Allied groups HIG al-Qaeda IJU IMU Taliban splinter groups Fidai Mahaz 2001 invasion: Islamic Emirate of Afghanistan Taliban al-Qaeda 055 Brigade	Victory American-led coalition invasion and occupation of Afghanistan Destruction of al-Qaeda training camps Fall of the Taliban government Establishment of the Islamic Republic of Afghanistan under the Karzai administration Start of Taliban insurgency Death of Osama bin Laden in Pakistan Commencement of war's 2015–present phase
Iraq War (2003–2011) Part of the Iraqi Insurgency and War on Terror Location: Iraq U.S. troops of L Company, 3rd Battalion, 3rd Marine Regiment search a house for insurgents, weapons caches and explosives during a patrol.	United States Iraq Azerbaijan United Kingdom South Korea Italy Poland Australia Georgia Ukraine Estonia Netherlands Spain Denmark MNF–I	Baath Loyalists Islamic State of Iraq al-Qaeda in Iraq Mahdi Army Special Groups IAI Ansar al-Sunnah Ba'athist Iraq	Victory - see War on ISIL below Invasion and occupation of Iraq Overthrow of Ba'ath Party government and execution of Saddam Hussein Iraqi insurgency, emergence of al-Qaeda in Iraq, and civil war Subsequent depletion of al-Qaeda in Iraq, improvements in public security, Iraqi insurgency persists 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 Increased Iranian influence in Iraq Escalation of sectarian insurgency after U.S. withdrawal and spillover with the Syrian Civil War Rise of the Islamic State of Iraq, the successor of al-Qaeda in Iraq
War in North-West Pakistan (2004–present) Part of the War on Terror Location: Pakistan Airstrike on insurgent forces in Pakistan.	United States Pakistan	Tehrik-i-Taliban Pakistan al-Qaeda Lashkar-e-Jhangvi Lashkar-e-Islam Islamic Movement of Uzbekistan East Turkestan Islamic Movement Tehreek-e-Shariat Islamic State of Iraq and the Levant	Ongoing Drone strikes being conducted by the United States Jundallah, Tehreek-e-Khilafat, and the Islamic Movement of Uzbekistan join ISIL
2011 military intervention in Libya (2011) Part of the Libyan Crisis Location: Libya US vessels launch missiles in support of the Libyan Civil War.	States enforcing UNSC Resolution 1973: NATO Belgium Bulgaria Canada Denmark France Greece Italy Netherlands Norway Romania Spain Turkey United Kingdom United States Jordan Qatar Sweden United Arab Emirates	Libya	Victory Overthrow of Gaddafi government and Death 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 another civil war in 2014
War on ISIL (Operation Inherent Resolve) (2014–present) Part of the Iraqi Civil War, Syrian Civil War, Second Libyan Civil War, Boko Haram insurgency, and the War on Terror Location: Iraq, Syria, Libya and Nigeria US airstrikes on ISIL positions in Syria.	United States Iraq United Kingdom Canada Jordan Morocco Australia Belgium Denmark France Germany Italy Netherlands New Zealand Norway Portugal Spain Bahrain Saudi Arabia United Arab Emirates Syrian Opposition Nigeria Chad Cameroon Niger Libya Syria Iran Russia	Islamic State of Iraq and the Levant Boko Haram al-Nusra Front Khorasan Ahrar ash-Sham	Ongoing Airstrikes on ISIL and al-Qaeda positions in Iraq, Syria, Libya, Nigeria and Afghanistan Multinational humanitarian efforts Arming and support for local ground forces Hundreds of thousands of civilians in Iraq and Syria flee their homes sparking a refugee crisis Thousands of civilians are executed by ISIL forces ISIL loses up to 30% of its territory in Iraq ISIL controls around 50% of Syria by late May 2015 Emergence of independently-governed Kurdish regions
War in Afghanistan (2015–present) ISAF troops changing mission and beginning the RSM.	Islamic Republic of Afghanistan Afghan National Security Forces Allied militias Jamiat-e Islami Junbish-i-Milli Hezbe Wahdat Coalition: Resolute Support Mission (2015–present) Australia Croatia Czech Republic Georgia (IPAP) Germany Italy Romania Spain Turkey United Kingdom United States	Taliban Haqqani network Islamic Jihad Union Supported by: Pakistan Inter-Services Intelligence (Denied by Pakistan) Allied groups Hezb-e-Islami Gulbuddin al-Qaeda Islamic Jihad Union Taliban splinter groups Dadullah Front Fidai Mahaz Islamic State of Iraq and the Levant Wilayat Khorasan	Ongoing Security and control of Afghanistan taken over by Afghan security forces NATO implements a support mission Continued counter-terror operations being conducted by NATO forces ISIL establishes presence in Afghanistan and begins to recruit fighters Failed 2015 Taliban resurgence attempt in Kunduz, northern Afghanistan U.S. halts withdrawal and prolongs presence in Afghanistan

See also

• List of ongoing armed conflicts
• Timeline of United States military operations
• Timeline of United States at war

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