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List of Wars Involving the United States Information

This is a chronological List of wars involving the United States during and since the American Revolutionary War, detailing all constituent military theatres and campaigns.

Dates indicate the years in which the United States was involved in the war.

See also Timeline of United States military operations.

Contents

List

War or conflict's name(s) Opponent(s) Time Conclusion(s)
American Revolutionary War or American War of Independence Great Britain Loyalist Iroquois Cherokee September 1, 1774 – September 3, 1783 Treaty of Paris Britain recognizes independence of the United States
Boston Campaign Part of the American Revolutionary War Great Britain September 1, 1774–March 17, 1776 Colonial victory, British forces driven from Boston area
Naval operations in the American Revolutionary War Part of the American Revolutionary War Great Britain 1775–1783 Treaty of Paris
Canadian Campaign Part of the American Revolutionary War Great Britain Canadian Militia June 1775–October 1776 Defeat of Colonial invasion; British counter-offensive
New York and New Jersey Campaign Part of the American Revolutionary War Great Britain Hesse-Kassel Waldeck-Pyrmont July 1776 – March 1777 New York: British gain control of New York City, British victory New Jersey: Americans lose and then regain control of New Jersey, American victory
Saratoga Campaign Part of the American Revolutionary War Great Britain Brunswick-Lüneburg Hesse-Hanau Iroquois Confederation (except Oneidas) June 14, 1777–October 17, 1777 Decisive American victory:
Philadelphia Campaign Part of the American Revolutionary War Great Britain Hesse-Kassel Ansbach-Bayreuth 1777–1778 British occupation then evacuation of Philadelphia
Western Theater Part of the American Revolutionary War American Indians Great Britain 1775–1782 Military stalemate, U.S. diplomatic victory; Spanish Louisiana successfully defended
Chickamauga Wars (1776–1794) Part of the American Revolutionary War Part of the American Indian Wars American Indians Great Britain Cherokee Shawnee Ojibway Creek Chickamauga Miami Mingo Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot 1776–1794 Decisive American victory; U.S. diplomatic victory, American rights in Treaty of Paris successfully defended

Britain recognizes independence of the United States and cedes forts and influence in Indian territory.
Northern Theater Part of the American Revolutionary War Great Britain 1778–1782 ???
Southern Theatre Part of the American Revolutionary War Great Britain 1775–1782 Decisive Franco/American victory, Surrender of British army at Yorktown
Yorktown Campaign Part of the American Revolutionary War Great Britain Ansbach-Bayreuth Hesse-Kassel January – October, 1781 Decisive Franco/American victory
Northwest Indian War or Little Turtle's War or Miami Campaign Western Confederacy Canadian Militia 1785–1795 U.S. victory, Treaty of Greenville
Quasi-War or Franco-American War or Half War French Republic 1798–1800 Indecisive United States Victory; end of French privateer attacks on U.S. shipping; U.S. neutrality and renunciation of claims against France
First Barbary War or Barbary Coast War or Tripolitan War Vilayet of Tripoli Morocco 1801–1805 American victory, peace treaty
Tecumseh's War or Tecumseh's Rebellion Tecumseh's Confederacy August - November 1811 American victory, peace treaty
War of 1812 or Second War of Independence British Empire Shawnee Red Sticks Ojibway Chickamauga Meskwaki Iroquois Miami Mingo Odawa Kickapoo Lenape Mascouten Potawatomi Sauk Wyandot June 18, 1812 – March 23, 1815 Treaty of Ghent Status quo ante bellum
Atlantic Theatre Part of the War of 1812 British Empire 1812–1815 Treaty of Ghent; Status quo ante bellum
Chesapeake Campaign Part of the Atlantic Theatre of the War of 1812 British Empire 1813–1814 Treaty of Ghent; Status quo ante bellum
Great Lakes and Western Theatre Part of the War of 1812 British Empire 1812–1815 Treaty of Ghent; Status quo ante bellum
Canadian Campaign Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1812–1813 Treaty of Ghent; Status quo ante bellum
American Northwest Campaign Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1813 Treaty of Ghent; Status quo ante bellum
Niagara Frontier Campaign Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1813–1814 Treaty of Ghent; Status quo ante bellum
St. Lawrence and Lower Canada Campaign Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1813–1814 Treaty of Ghent; Status quo ante bellum
Niagara and Plattsburgh Campaigns Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1814 Treaty of Ghent; Status quo ante bellum
American West Campaign Part of the Great Lakes and Western Theatre of the War of 1812 British Empire 1813–1814 Treaty of Ghent; Status quo ante bellum
Southern Theatre Part of the War of 1812 British Empire 1814–1815 Treaty of Ghent; Status quo ante bellum
Creek War Part of the Southern Theatre of the War of 1812 Red Stick Creek 1813–1814 U.S./Allied Native American victory
Second Barbary War or Algerian War Algiers 1815 American victory
First Seminole War Seminole Spanish Florida November 22, 1817 - April 12, 1818 American victory
West Indies Anti-Piracy Operations Caribbean Pirates 1817–1825 United States victory
African Anti-Slavery Operations African Slave Traders 1819–1861 Atlantic slave trade suppressed by 1865
Callao Affair Spain November 5–6, 1820 Spanish vow to punish those responsible for attacks on American shipping.
Arikara War Arikara 1823 The Arikara eventually settled with the Mandan and Hidatsa on the Fort Berthold Reservation in North Dakota
Aegean Anti-Piracy Operations Greek Pirates 1825–1828 United States victory
Winnebago War or Le Fèvre Indian War Prairie La Crosse Ho-Chunks, with a few allies 1827 U.S. victory; Ho-Chunks cede lead mining region to the U.S.
Black Hawk War or Black Hawk Campaign Black Hawk's British Band, with Ho-Chunk and Potawatomi allies May–August 1832 United States victory
First Sumatran Expedition Chiefdom of Kuala Batee February 6 – 9, 1832 United States victory
United States Exploring Expedition Fiji
Samoa
Tabiteuea		 1838–1842 Successful expedition, victory in battle against aborigionals
Second Seminole War or Florida War Seminole December 23, 1835 – August 14, 1842 3,800 Seminoles transported to Indian Territory, 300 left in Everglades
Second Sumatran Expedition Chiefdom of Quallah Battoo December 1838 – January 1839 United States victory, Malays agree to cease attacks on American vessels
Capture of Monterey Mexico October 19–20, 1842 United States captures Monterey
Battle of Kororareka Māori March 11, 1845 Successful British and American rescue operations
Mexican–American War or Mexican War Mexico April 25, 1846 – February 2, 1848 Decisive United States victory:
Texas Campaign Part of the Mexican-American War Mexico 1846 Decisive US victory: All Mexican forces pushed out of State of Texas, Mexican bandits suppressed
Conquest of California Part of the Mexican-American War Mexico 1846–1847 Decisive US victory:

Republic of California united with the United States
New Mexico and Arizona Campaign Part of the Mexican-American War Mexico 1846–1847 Decisive US victory:
  • All Mexican forces pushed out of region
  • Territory annexed to the US
  • Indian tribal nations recognize US suzerainty

Treaty of Guadalupe Hidalgo
Pacific Coast Campaign Part of the Mexican-American War Mexico 1847–1848 Decisive US victory
  • Indian tribal nations recognize US suzerainty
Mexico City Campaign Part of the Mexican-American War Mexico 1847 Decisive US victory
Navajo Wars Navajo 1858–1866 United States victory, Long Walk of the Navajo
Cayuse War Cayuse 1847–1855 United States victory
Pitt River Expedition Tolowa Nomlaki Chimariko Wintun April 28 - September 13, 1850 ???
Apache Wars Apache Ute Yavapai 1851–1900 Decisive American victory, Apaches moved to reservations
Bombardment of San Juan del Norte or Bombardment of Greytown Nicaragua July 13, 1854 U.S. victory, town severely damaged
Battle of Ty-ho Bay Chinese Pirates August 4, 1855 Anglo-American victory
First Fiji Expedition Fiji October 1855 United States victory in battle, objective failed
Yakima War Yakama 1855–1858 American victory, peace treaty
Rogue River Wars Rogue River people 1855–1856 Indians relocated to Siletz, Grand Ronde, and Coast Reservations
Puget Sound War Nisqually Muckleshoot Puyallup Klickitat Haida and Tlingit 1855–1856 Indians relocated to Siletz, Grand Ronde, and Coast Reservations.
Third Seminole War or Billy Bowlegs War Seminole 1855–1858 U.S. victory
Second Opium War or Second Anglo-Chinese War or Second China War Qing Dynasty 1856–1859 Treaty of Tianjin June 18, 1858
Second Fiji Expedition Fiji 6–16 October 1858 United States victory
Paraguay Expedition Paraguay 1859 Paraguay extended an apology to the United States, indemnified the family of the slain Water Witch crewman, and granted the United States a new and highly advantageous commercial treaty
Reform War Conservatives March 6, 1860 United States victory
Paiute War or Paiute Indian War or Pyramid Lake War Paiute Bannock Shoshone 1860 United States victory
American Civil War or War Between the States Confederate States of America April 12, 1861 – April 9, 1865 Union victory:
Reconstruction 1867–1877 Stalemate:
  • Union Military governments overthrown
  • Southern States re-admitted
Eastern Theater Part of the American Civil War Confederate States of America 1861–1865 Union victory
Western Theater Part of the American Civil War Confederate States of America 1861–1865 Union victory
Lower Seaboard Theater Part of the American Civil War Confederate States of America 1862–1865 Union victory
Trans-Mississippi Theater Part of the American Civil War Confederate States of America 1862–1865 Union victory
Pacific Coast Theater Part of the American Civil War Confederate States of America 1862–1865 Union victory
Dakota War of 1862 or Sioux Uprising or Sioux Outbreak of 1862 Dakota Sioux August 17 – December 26, 1862 United States victory
Bombardment of Qui Nhơn or Cochinchina Campaign Nguyen Dynasty July 31, 1861 United States victory, fort silenced
Colorado War Cheyenne Arapaho 1863–1865 United States victory
Battles for Shimonoseki Chōshū Domain July 20, 1863 - September 6, 1864 Decisive Allied victory
Powder River Expedition or Connor Expedition Sioux Cheyenne Arapaho 1865 U.S. victory; raids along Bozeman trail stopped
Snake War Paiute Bannock Shoshone 1864–1868 U.S. victory
Red Cloud's War or Bozeman War or Powder River War Lakota Cheyenne Arapaho 1866–1868 United States victory:
  • Treaty of Fort Laramie (1868)
  • Lakota people confined to reservations in the Bozeman Trail and in Fort Laramie
  • The Lakota and Northern Cheyenne territory made into reservations but part of the United States
Formosa Expedition or Taiwan Expedition of 1867 Paiwan June 1867 United States objectives failed
Comanche Campaign or Comanche War Cheyenne Arapaho Comanche Kiowa 1867–1875 United States victory
Battle of Boca Teacapan Mexican Pirates June 17, 1870 United States victory
Korean Expedition or Shinmiyangyo Joseon Dynasty June 1, 1871 - July 3, 1871 United States military victory, United States diplomatic failure; Korean-American Treaty of Amity and Commerce
Modoc War or Modoc Campaign or Lava Beds War Modoc July 6, 1872 – June 4, 1873 United States victory
Oahu Expedition Emmaites February 12, 1874 American and British forces quell riot.
Red River War Cheyenne Arapaho Comanche Kiowa June 27, 1874 - June 1875 United States victory; end to the Texas-Indian Wars
Black Hills War or Great Sioux War of 1876–77 or Little Big Horn Campaign Lakota Northern Cheyenne Arapaho 1876–1877 United States victory
Nez Perce War or Nez Perce Campaign Nez Perce 1877 United States victory
Bannock War or Bannock Campaign Bannock Shoshone 1878 United States victory
Cheyenne War or Cheyenne Campaign Cheyenne 1878–1879 United States victory
Sheepeater Indian War Shoshone 1879 United States victory
White River War or Ute War or Ute Campaign Ute 1879–1880 United States victory
Egyptian Expedition or Second Anglo-Egyptian War Urabi Rebels June - July 1882 United States forces protect consulate from rebels and extinguish fires
Colombian Civil War Colombian rebels March 30-April 24, 1885 Colon destroyed, rebels retreat, American hostages released; Ambrose Light and Colombian rebels captured
Samoan Crisis or First Samoan Civil War German Empire 1887–1889 Both squadrons wrecked
Pine Ridge Campaign or Ghost Dance War Sioux November 1890 – January 1891 United States victory
Bering Sea Anti-Poaching Operations Bering Sea Poachers June 22 - October 5, 1891 Suppression of seal poaching in the Bering Sea
Chilean Civil War Chile 1891 United States Navy seizes Chilean ship; Breakdown of American and Chilean relations
Rio de Janeiro Affair Brazilian Rebels January 21–9, 1894 United States victory, objective completed
Second Samoan Civil War Mataafans 1898–1899 Mataafan victory, Mata'afa Iosefo becomes high chief of Samoa; United States acquires American Samoa, Germany acquires German Samoa
Spanish-American War Spain April 25 – August 12, 1898 United States victory:
Pacific Theater Part of the Spanish-American War Spain 1898 US victory
Philippine Campaign Part of the Pacific Theatre of the Spanish-American War Spain 1898 Expulsion of the Spanish colonial government during Spanish-American War (1898)
Guam Campaign Part of the Pacific Theatre of the Spanish-American War Spain 1898 United States victory:
  • United States captures Guam
Caribbean Theater Part of the Spanish-American War Spain 1898 US victory
Part of the Caribbean Theatre of the Spanish-American War Spain 1898 US victory
Puerto Rican Campaign Part of the Caribbean Theatre of the Spanish-American War Spain 1898 Militarily inconclusive, Spain cedes Puerto Rico in accordance with the accords of the Treaty of Paris of 1898
Philippine Insurrection or Philippine–American War or Philippine War of Independence First Philippine Republic Revolutionary forces Pulajanes June 2, 1899 – July 4, 1902 United States victory and dissolution of the First Philippine Republic; The Philippines becomes an unincorporated territory of the United States
Moro Rebellion Sultanate of Sulu Moro 1899–1913 United States victory
Boxer Rebellion or The Boxer Uprising Righteous Harmony Society Qing Empire September 28, 1899 - August 15, 1900 Alliance victory
Occupation of Nicaragua or Nicaraguan Campaign Liberal rebels 1912–1933 United States victory
Mexican Revolution or Mexican Expedition or Pancho Villa Expedition Mexico Yaqui April 21, 1914 - June 16, 1919 Porfirio Diaz ousted from power and exiled in France, Convention of Aguascalientes between revolutionary leaders, Mexican Constitution of 1917 enacted, assassination of important revolutionary leaders Madero, Zapata and Carranza, founding of the National Revolutionary Party
Occupation of Haiti or Haitian Campaign or Caco War Haiti Caco rebels July 28, 1915 - August 1, 1934 United States victory, Cacos defeated, Haiti occupied.
Occupation of the Dominican Republic or Dominican Campaign Dominican Republic 1916–1924 United States victory, Dominican Republic occupied.
World War I or First World War or Great War Germany Austria-Hungary 1917–1918 Armistice with Germany November 11, 1918 Paris Peace Conference 1919 Treaty of Berlin (August 25, 1921) Treaty of Trianon (in part); Allied victory:
European Theatre Part of World War I Germany Austria-Hungary 1917–1918 Allied victory; Treaty of Versailles, Treaty of Brest-Litovsk
Western Front Part of the European Theatre of World War I Germany Austria-Hungary 1917–1918 Allied victory. Collapse of the German Empire.
Italian Campaign Part of the European Theatre of World War I Germany Austria-Hungary 1917–1918 Allied victory; Treaty of Versailles
Asian and Pacific Theatre Part of World War I Germany 1917–1918 Allied victory; Treaty of Versailles
First Battle of the Atlantic Part of World War I Germany 1917–1918 Allied victory; Treaty of Versailles
Russian Civil War Russia 1918–1920 Allied withdrawal from Russia
North Russia Campaign Part of the Russian Civil War Russia 1918–1920 Allied withdrawal
Siberian Intervention Part of the Russian Civil War Russia 1918–1920 Allied withdrawal
World War II or Second World War Empire of Japan Nazi Germany Fascist Italy Italian Social Republic Bulgaria Hungary Romania December 7, 1941 - September 2, 1945 Allied victory:
Second Battle of the Atlantic Part of World War II Germany Italy Vichy France 1941–1945 Decisive Allied victory
Pacific War Part of World War II Empire of Japan

Thailand Arzi Hukumat-e-Azad Hind

 1941–1945 Decisive Allied victory End of World War II:
Burma Campaign Part of the Pacific War of World War II Empire of Japan

Thailand Free India

 Decisive Allied victory, leading to later Independence of Burma in 1948
New Guinea Campaign Part of the Pacific War of World War II Empire of Japan Allied victory
Aleutian Islands Campaign Part of the Pacific War of World War II Empire of Japan June 3, 1942 – August 15, 1943 Allied victory
Guadalcanal Campaign Part of the Pacific War of World War II Empire of Japan August 7, 1942 – February 9, 1943 Strategic Allied victory
Solomon Islands Campaign Part of the Pacific War of World War II Empire of Japan January 1942 – August 21, 1945 Decisive Allied victory
Gilbert and Marshall Islands Campaign Part of the Pacific War of World War II Empire of Japan November, 1943 – February, 1944 Allied victory
Mariana and Palau Islands Campaign Part of the Pacific War of World War II Empire of Japan June – November, 1944 American victory
Philippines Campaign Part of the Pacific War of World War II Empire of Japan Second Philippine Republic October 20, 1944–September 2, 1945 Allied victory; Allied forces liberate the Philippines
Volcano and Ryukyu Islands Campaign Part of the Pacific War of World War II Empire of Japan January – June, 1945 Allied victory
Borneo Campaign Part of the Pacific War of World War II Empire of Japan 1 May - 1 August 1945 Allied victory; the Japanese are pushed further from Australia
Japan Campaign Part of the Pacific War of World War II Empire of Japan 16 February - 23 July 1945 Allied victory
Mediterranean, Middle East and African Theatres Part of World War II Germany Italy Vichy France Italian Social Republic 1941–1945 Allied victory
Algeria-French Morocco Campaign Part of the European Theatre of World War II Vichy France Germany (naval participation in Morocco) 8–16 November 1942 Allied victory
Anzio Campaign Part of the European Theatre of World War II Germany Italian Social Republic January 22, 1944 – June 4, 1944 Operation successful; VI Corps established beachhead; Battle of Anzio followed
Egypt–Libya Campaign Part of the European Theatre of World War II Germany 1942–1943 Allied forces finally succeed in driving all Axis forces out of Libya
Naples-Foggia Campaign Part of the European Theatre of World War II Germany Italy (to 8 September) 3 September 1943 – 16 September 1943 Allied victory
North Apennines Campaign Part of the European Theatre of World War II Germany Italian Social Republic 25 August-17 December 1944 Inconclusive
Po Valley Campaign Part of the European Theatre of World War II Germany Italian Social Republic 6 April 1945 – 2 May 1945 Decisive Allied victory:
  • German surrender in Italy
  • Italian Social Republic disestablished
Rome-Arno Campaign Part of the European Theatre of World War II Germany 22 January 1944 - 9 September 1944 German resistance crumbled
Sicily Campaign Part of the European Theatre of World War II Italy Germany 9 July – 17 August 1943 Allied victory
Southern France Campaign Part of the European Theatre of World War II Germany 15 August 1944 – 14 September 1944 Allied victory
Tunisia Campaign Part of the European Theatre of World War II Germany Italy 17 November 1942 – 13 May 1943 Decisive Allied victory
European Theatre Part of World War II Germany Italy Vichy France Italian Social Republic Hungary 1942–1945 Decisive Allied victory:
  • Fall of Nazi Germany (concurrently with Eastern Front)
  • Fall of Fascist Italy
  • Liberation of occupied countries in Western and Northern Europe
  • Partition of Germany (1945)
Normandy Campaign Part of the European Theatre of World War II Germany 6 June 1944 – mid-July 1944 Decisive Allied victory
Northern France Campaign Part of the European Theatre of World War II Germany 6 June – 25 August 1944 Decisive Allied victory
Rhineland Campaign Part of the European Theatre of World War II Germany 25 August 1944 – March 1945 Allied victory
Ardennes-Alsace Campaign Part of the European Theatre of World War II Germany 16 December 1944 – 28 January 1945 Allied victory
Central Europe Campaign Part of the European Theatre of World War II Germany

Hungary

 February 8, 1945 – May 8, 1945 Allied victory
Cold War Soviet Union Yugoslavia Bulgaria Czechoslovakia Hungary Poland Romania East Germany Albania People's Republic of China North Korea Cuba North Vietnam Khmer Rouge Afghanistan Grenada 1947–1991 Dissolution of the USSR; United States becomes world's sole superpower
First Indochina War or French Indochina War Part of the Cold War Democratic Republic of Vietnam Pathet Lao Khmer Issarak People's Republic of China Soviet Union 1950–1954 Geneva Conference Departure of the French from Indochina
Korean War or Korean Conflict or The Forgotten War Part of the Cold War Democratic People's Republic of Korea People's Republic of China Soviet Union Bulgaria Czechoslovakia Hungary Poland Romania 1950–1953 Cease-fire armistice, North Korean invasion of South Korea repelled, UN invasion of North Korea repelled, Chinese invasion of South Korea repelled, Korean Demilitarized Zone established, little territorial change at the 38th parallel border, essentially uti possidetis
Second Indochina War or Vietnam War or Vietnam Conflict Part of the Cold War Democratic Republic of Vietnam National Front for the Liberation of South Vietnam (NLF) People's Republic of China Soviet Union 1953–1975 Withdrawal of American forces from Indochina, Dissolution of South Vietnam, Communist governments take power in Vietnam, Cambodia and Laos
Laotian Civil War or Secret War Part of the Second Indochina War of the Cold War Pathet Lao Democratic Republic of Vietnam 1953–1975 Establishment of the Lao People's Democratic Republic
1958 Lebanon crisis or Operation Blue Bat Lebanese Rebels July 15 - October 25, 1958 Opposition successfully intimidated
Bay of Pigs Invasion Cuba April 17–19, 1961 Cuban government victory
Cambodian Civil War Part of the Second Indochina War of the Cold War National United Front of Kampuchea Khmer Rouge Democratic Republic of Vietnam National Front for the Liberation of South Vietnam (NLF) 1970–1975 Fall of the Khmer Republic to the Khmer Rouge; creation of Democratic Kampuchea; Beginning of Cambodian Genocide
Invasion of the Dominican Republic or Operation Power Pack Part of the Cold War Dominican Republic Supported by: Cuba April 28, 1965 – September 1966 United States victory, Juan Bosch excluded from Presidency, election of Joaquín Balaguer
Invasion of Grenada or Operation Urgent Fury Part of the Cold War Grenada Cuba 25 October – 15 December 1983 Decisive United States/CPF victory
Lebanese Civil War or Multinational Force in Lebanon Shia militia Druze miltia Syria August 24, 1982 - February 7, 1984 Withdrawal starting February 7
1981 Gulf of Sidra incident or First Gulf of Sidra Incident Libya August 19, 1981 US victory; Deterioration of Libya – United States relations
Action in the Gulf of Sidra or Operation Prairie Fire Libya March 1986 Tactical US victory
Bombing of Libya or Operation El Dorado Canyon Libya April 15, 1986 Tactical US victory
Iran-Iraq War or Operation Earnest Will or Tanker War Iran 1987–1988 Operation Prime Chance, Operation Nimble Archer, Operation Praying Mantis; US victory
1989 Gulf of Sidra incident or Second Gulf of Sidra Incident Libya January 4, 1989 US victory; Deterioration of Libya – United States relations
Invasion of Panama or Operation Just Cause Panama PDF 20 December 1989 – 12 January 1990 Decisive United States victory
Gulf War or Persian Gulf War or Operation Desert Storm Iraq August 2, 1990 – February 28, 1991 Coalition victory:
Iraqi no-fly zones Iraq 1991–2003 Operation Provide Comfort, Operation Southern Watch, Cruise missile strikes on Iraq (June 1993), Cruise missile strikes on Iraq (1996), Operation Northern Watch, Operation Desert Fox, Operation Southern Focus; Coalition victory
Somali Civil War or Operation Restore Hope Various Somali factions 1992–1994 Multinational success
Bosnian War or Operation Deliberate Force Republika Srpska 1993–1995 Dayton Accords
Operation Uphold Democracy Haiti 19 September 1994 – 31 March 1995 Reinstatement of Jean-Bertrand Aristide as President of Haiti
Bombings of Afghanistan and Sudan or Operation Infinite Reach Al-Qaeda Harkat-ul-Mujahideen National Islamic Front August 20, 1998 Disputed
Kosovo War or Operation Allied Force or Operation Noble Anvil Federal Republic of Yugoslavia March 24 – June 10, 1999 Kumanovo Treaty, UN Security Council Resolution 1244; Reflagged as KFOR in 1999 in support of Operation Joint Guardian
War on Terror Al-Qaeda Taliban Caucasian militants Al-Shabaab Islamic Courts Union Iraqi insurgents Hamas Hezbollah Baath Party Loyalists 7 October 2001 – present Ongoing:
Operation Enduring Freedom Part of the War on Terror In Afghanistan:

In the Philippines:

In Somalia:

In Sahara:

 7 October 2001 – present Conflicts ongoing;
  • Taliban regime overthrown but their forces still fight ISAF and Afghan government forces
  • Killing of Osama bin Laden
Operation Enduring Freedom - Afghanistan or War in Afghanistan Part of Operation Enduring Freedom of the War on Terror Insurgent groups:

2001 Invasion:

 October 7, 2001 – present Conflict ongoing:
Operation Enduring Freedom - Philippines or Operation Freedom Eagle Part of Operation Enduring Freedom of the War on Terror Jemaah Islamiyah Abu Sayyaf Rajah Sulaiman Movement al-Qaeda 15 January 2002 – ongoing Conflict ongoing
Operation Enduring Freedom - Horn of Africa Part of Operation Enduring Freedom of the War on Terror Insurgents:

al-Itihaad al-Islamiya (Dis) Islamic Courts Union (Dis) Harakat al-Shabaab Mujahedeen Hizbul Islam (Dis)

al-Qaeda

See: Somali Civil War' Pirates: Somali Pirates

  • Somali Marines
  • National Volunteer Coast Guard (NVCG)
  • Marka group
  • Puntland Group

Yemeni Pirates

 7 October 2002 – present Conflict ongoing
Operation Enduring Freedom – Trans Sahara Part of Operation Enduring Freedom of the War on Terror al-Qaeda Organization in the Islamic Maghreb 6 February 2007 – ongoing Conflict ongoing
Operation Iraqi Freedom or Iraq War Part of the War on Terror Insurgent groups: Baath Party Loyalists Islamic State of Iraq al-Qaeda in Iraq (2003–11) Mahdi Army Special Groups Islamic Army of Iraq Ansar al-Sunnah

Iraq under Saddam Hussein

 March 20, 2003 – December 15, 2011 Coalition combat operations concluded, low level internal conflict ongoing:
  • Invasion of Iraq
  • Overthrow of Baath Party government and execution of Saddam Hussein
  • Coalition occupation of Iraq
  • Iraqi insurgency and sectarian violence
  • Subsequent depletion of Iraqi insurgency
  • Improvements in public security
  • Foreign terrorist operations
  • Elections held
  • Presence of American troops in advise and assist role until the end of 2011
War in North-West Pakistan or Operation Freedom Eagle Part of the War on Terror Taliban Tehrik-i-Taliban Pakistan TNSM Al-Qaeda Lashkar-e-Islam Islamic Movement of Uzbekistan Ghazi Force March 16, 2004 – ongoing Conflict ongoing:
  • Ongoing insurgency
  • Large part of FATA under Taliban control
  • Shifting public support for the Pakistani government
Yemeni al-Qaeda crackdown Part of the War on Terror Islamic Emirate of Abyan al-Qaeda in the Arabian Peninsula Harakat al-Shabaab Mujahideen January 14, 2010 - ongoing Conflict ongoing
Second Liberian Civil War Liberians United for Reconciliation and Democracy Movement for Democracy in Liberia 2003 US Forces withdraw in 2003 after UNMIL is established
2004 Haitian coup d'état National Revolutionary Front for the Liberation of Haïti 2004 Aristide ousted; interim government installed
2011 Libyan civil war or Operation Odyssey Dawn Libyan Arab Jamahiriya: March 19 - October 23, 2011 Death of Muammar Gaddafi
Lord's Resistance Army insurgency Lord's Resistance Army 2011 Conflict Ongoing

See also

List of ongoing political conflicts

References

External links

Major armed conflicts involving the United States Armed Forces
listed chronologically
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Legend: A = Army, MC = Marine Corps, N = Navy, AF = Air Force, CG = Coast Guard, PHS = Public Health Service, NOAA = National Oceanic and Atmospheric Administration, MSC = Military Sealift Command
Lists of wars involving North American countries
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