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The history of armed conflicts involving the United States of America spans a period of more than four centuries. A period ranging from the early era of European colonization and the formation of the new national polity that would become the United States, to its evolvement through technological and political upheavals into a decisively modern republic and military force, and ascent onto the world stage, through the calamities of the 20th century, as the largely unrivaled hegemon that it is today. [1]
The lines of conflict demarcating the wars, rebellions, and revolutions in the North American colonial and national period can be traced far back into early pre-Columbian times. However, due to the scarcity of written sources, not least resulting from the Spanish colonizers destroying a sizable amount of original Maya writings, deeming them to be heretical, historians typically make the early European settlements as their initial point of departure, of which sources are more plentiful. [2]
A further concern highlighted by historians, relating to the history of slavery and colonialism in particular, is the inherent unevenness of the terrain in which conflicts erupt, and often tremendous disproportionality of means by which they are fought and settled. As historian Ira Berlin points out slavery, by its very definition, poses a profound asymmetry of power: "For three centuries, slave masters mobilized enormous resources that stretched across continents and oceans and employed them with great ferocity in an effort to subdue their human property. Slaves, for their part, had little to depend upon but themselves." [3]
As such, four distinctive lines of conflict can be identified weaving through the colonial and early national period. Firstly, the conflicts between the European colonists and the Native American tribes. Secondly, the rival conflicts between the European states over control of the Americas. Thirdly, the mounting tensions and armed conflicts between the settlers and their rulers in Europe. And lastly, as violence between the white people grew, so too did the revolutionary fervor of the African slaves in their quest for freedom through armed insurrection. [4]
Conflict | U.S. and allies | Opponents | Results and assessment of outcome |
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Gabriel's slave rebellion (1800) | |||
First Barbary War (1801–1805) Part of the Barbary Wars Location: Mediterranean Sea off the coast of Tripoli . | United States Sweden | Eyalet of Tripolitania Sultanate of Morocco | U.S. allied victory
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Sabine Expedition (1806) Part of the American Indian Wars Location: Sabine River (Texas–Louisiana) | |||
1811 German Coast Uprising (1811) Location: Territory of Orleans | United States | Rebel slaves Supported by: | U.S. victory[ citation needed ]
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Tecumseh's War (1811) Part of the American Indian Wars and the War of 1812 Location: Northwest River Ohio | United States | Tecumseh's Confederacy | U.S. victory
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War of 1812 (1812–1815) Location: Eastern and Central North America | United States Choctaw Cherokee Nation Creek Allies | United Kingdom List | Stalemate Treaty of Ghent; Status quo ante bellum with no boundary changes
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Creek War (1813–1814) Part of the American Indian Wars and the War of 1812 Location: Southern United States | United States Lower Creeks Cherokee Nation Choctaw | Red Stick Creek | U.S. allied victory
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Second Barbary War (1815) Part of the Barbary Wars Location: Mediterranean Sea and the Barbary states. | United States | Regency of Algiers | U.S. victory[ citation needed ]
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First Seminole War (1817–1818) Part of the Seminole Wars and the American Indian Wars | United States | Seminole | Victory
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Long Expedition (1819) | U.S. Filibusters | First Mexican Empire Army of the Three Guarantees | Mixed
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Texas–Indian wars (1820–1875) Part of the American Indian Wars and the Mexican Indian Wars Location: Texas | Spain | Comanche | U.S. allied victory
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Arikara War (1823) Part of the American Indian Wars Location: Missouri River | United States | Arikara | Mixed [6]
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Aegean Sea Anti-Piracy Operations of the United States (1825–1828) Part of Piracy in the Mediterranean Location: Off Greece , Aegean Sea | United States | Greek Pirates | U.S. victory
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Winnebago War (1827) Part of the American Indian Wars Location: Illinois and Michigan Territory | United States Choctaw | Prairie La Crosse Ho-Chunks with a few allies | U.S. victory
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First Sumatran expedition (1832) Part of the Sumatran expeditions Location: Aceh Sultanate | United States Netherlands | Chiefdom of Kuala Batee | U.S. allied victory
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Black Hawk War (1832) Part of the American Indian Wars Location: Illinois and Michigan Territory | United States Ho-Chunk Menominee Dakota Potawatomi | Black Hawks British Band Ho-Chunk and Potawatomi allies | U.S. allied victory
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Second Seminole War (1835–1842) Part of the Seminole Wars and the American Indian Wars Location: Florida , United States | United States | Seminole | Victory
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Second Creek War (1836) Part of the American Indian Wars Location: Alabama | |||
Caroline affair (1837) Location: Niagara River | United States | United Kingdom | Mixed |
Patriot War (1838) Part of the Rebellions of 1837–1838 Location: Great Lakes Basin | British Empire | Republic of Canada Hunters' Lodge | US-allied victory
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Osage Indian War (1837) Part of the American Indian Wars Location: Great Plains | |||
Second Sumatran expedition (1838) Part of the Sumatran expeditions Location: Aceh Sultanate | United States Netherlands | Chiefdom of Kuala Batee | U.S. allied victory
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Haun's Mill massacre (1838) Part of Missouri Mormon War Location: Caldwell County, Missouri | |||
Aroostook War (1838) Location: Maine and New Brunswick | United States | United Kingdom | Compromise Webster–Ashburton Treaty
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Creole case (1841) Location: Nassau, Bahamas – New Orleans, Louisiana | |||
Ivory Coast Expedition (1842) Part of the African Slave Trade Patrol Location: Ivory Coast | United States | Ivory Coast
| U.S. victory
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Mexican–American War (1846–1848) Location: Texas , New Mexico , California and Mexico | United States California Republic | Mexico | U.S. allied victory
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Conquest of California (1846–1847) | United States | Mexico | Catastrophe
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Cayuse War (1847–1855) Part of the American Indian Wars Location: Oregon | United States | Cayuse | U.S. victory
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Ute Wars (1849–1923) Part of the American Indian Wars Location: Colorado, Utah, Arizona, New Mexico | |||
Yuma War (1850–1853) Part of the American Indian Wars Location: Southern California | |||
Johanna Expedition (1851) Location: Matsamudu , Johanna Island | United States | Sultanate of Johanna | U.S. victory
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Apache Wars (1851–1900) Part of the Texas–Indian wars Location: Southwestern United States | United States | Apache Ute Yavapai | U.S. victory
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Erie Railroad War (1853–1854) Location: Pennsylvania | |||
Sioux Wars (1854–1891) Part of the American Indian Wars Location: Great Plains | |||
Bleeding Kansas (1854–1861) | |||
Puget Sound War (1855–1856) Part of the American Indian Wars Location: Washington | United States Snoqualmie | Nisqually Muckleshoot Puyallup Klickitat Haida Tlingit | U.S. allied victory
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First Fiji Expedition (1855) Part of the Fiji Expeditions Location: Fiji | United States | Fiji | U.S. victory |
Bloody Monday Election Riots of 1855 (1855) Location: Louisville, Kentucky | |||
Rogue River Wars (1855–1856) Location: Rogue Valley | United States | Rogue River people | U.S. victory
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Third Seminole War Part of the Seminole Wars and the American Indian Wars | United States | Seminole | Stalemate [10]
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Battle of Ty-ho Bay (1855) | United Kingdom United States | Chinese Pirates | U.S. allied victory |
Yakima War Part of the American Indian Wars Location: Washington Territory | United States Snoqualmie | Yakama Walla Walla tribe Umatilla tribe Nez Perce tribe Cayuse tribe | U.S. allied victory
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Pottawatomie massacre (1856) Part of the prelude to the American Civil War Location: Franklin County, Kansas | |||
Second Opium War Part of the Opium Wars Location: China | British Empire French Empire United States | Qing dynasty | U.S. allied victory
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Spirit Lake Massacre (1857) Location: Okoboji and Spirit Lake, Iowa | |||
Utah War Part of the Mormon wars Location: Utah Territory and Wyoming | United States | Deseret/Utah Mormons (Nauvoo Legion) | Compromise
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Mountain Meadows Massacre (1857) Part of the Mormon wars Location: Mountain Meadows, Utah Territory | |||
Marais des Cygnes massacre (1858) Part of the prelude to the American Civil War Location: Kansas Territory, Missouri | |||
Navajo Wars (1858–1866) Part of the American Indian Wars Location: New Mexico | United States | Navajo | U.S. victory
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Antelope Hills expedition (1858) Part of the American Indian Wars Location: Comancheria, Texas, Oklahoma | |||
Paraguay Expedition (1858-1859) Location: Paraguay | United States | Paraguay | |
Mohave War (1858–1859) Part of the American Indian Wars Location: Arizona | |||
Second Fiji Expedition (1859) Part of the Fiji Expeditions Location: Fiji | United States | Fiji | U.S. victory |
John Brown's raid on Harpers Ferry (1859) Part of pre-Civil War conflicts Location: West Virginia | United States | Abolitionist Insurgents | U.S. victory |
First and Second Cortina War (1859–1861) | United States | Cortinista bandits | U.S. allied victory |
Paiute War (1860) Part of the American Indian Wars Location: Pyramid Lake , Nevada | United States | Paiute Shoshone Bannock | U.S. victory |
American Civil War (1861–1865) Location: United States | United States | Confederate States | U.S. victory
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Sacking of Osceola (1861) Part of the American Civil War Location: Osceola, Missouri | |||
Yavapai Wars (1861–1875) Location: Arizona | United States | Yavapai Apache Yuma Mohave | U.S. victory |
Dakota War of 1862 (1862) | United States | Dakota Sioux | U.S. victory |
Lawrence massacre (1863) Part of the American Civil War Location: Lawrence, Douglas County, Kansas | |||
Colorado War (1863–1865) | United States | Cheyenne Arapaho Sioux | Victory
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Shimonoseki War (1863–1864) Location: Kanmon Straits | United Kingdom Dutch Empire French Empire United States | Chōshū Domain | U.S. allied victory
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Centralia Massacre (Missouri) (1864) Part of the American Civil War Location: Centralia, Missouri | |||
Fort Pillow massacre (1864) Part of the American Civil War Location: Lauderdale County, Tennessee | |||
Snake War (1864–1868) Locations: Oregon , Nevada , California , and Idaho | United States | Paiute Bannock Shoshone | U.S. victory |
Powder River War (1865) Location: Powder River State | United States | Sioux Cheyenne Arapaho | Mixed |
Hualapai War (1865–1870) Part of the American Indian Wars Location: Arizona Territory | |||
Second Franco-Mexican War (1865–1867) Location: Mexico | Mexico United States | Second French Empire Mexican Empire | U.S. allied victory
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Red Cloud's War (1866–1868) Location: Powder River State | United States | Lakota Cheyenne Arapaho | U.S. defeat
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Formosa Expedition (1867) Location: Southern Formosa (Taiwan) | United States | Paiwan | U.S. defeat
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Comanche Campaign (1867–1875) Location: Western United States | United States | Cheyenne Arapaho Comanche Kiowa | U.S. victory |
Opelousas massacre (1868) Location: Opelousas, Louisiana | |||
Battle of Boca Teacapan (1870) Location: Boca Teacapan, Sinaloa, Teacapan Estuary | United States | Mexican pirates | U.S. victory |
Sheep Wars (c.1870–1920) Location: Texas, Arizona and the border region of Wyoming and Colorado | |||
United States expedition to Korea (1871) Location: Ganghwado | United States | Joseon Dynasty | Victory [12] |
Modoc War (1872–1873) Location: California and Oregon | United States | Modoc | U.S. victory |
Colfax massacre (1873) Location: Colfax, Louisiana | Court attackers
| Court defenders
| Catastrophe
|
Election riot of 1874 (1874) Location: Barbour County, Alabama | |||
Red River War (1874–1875) Location: Texas | United States | Cheyenne Arapaho Comanche Kiowa | U.S. victory
|
Coushatta massacre (1874) Location: Louisiana | |||
Las Cuevas War (1875) | United States | Mexico | U.S. victory
|
Great Sioux War of 1876 (1876–1877) | United States | Lakota Dakota Sioux Northern Cheyenne Arapaho | U.S. victory
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Hamburg massacre (1876) Part of the Reconstruction Era Location: South Carolina | |||
Buffalo Hunters' War (1876–1877) | United States | Comanche Apache | U.S. victory |
Nez Perce War (1877) | United States | Nez Perce Palouse | U.S. victory |
Great Railroad Strike of 1877 (1877) Location: Martinsburg, West Virginia | |||
Bannock War (1878) | United States | Bannock Shoshone Paiute | U.S. victory |
Cheyenne War (1878–1879) Location: Oklahoma , Kansas , Nebraska , South Dakota and Montana | United States | Cheyenne | U.S. victory |
Sheepeater Indian War (1879) Location: Idaho | United States | Shoshone | U.S. victory |
Victorio's War (1879–1881) Location: Mexico | United States Mexico | Apache | U.S. allied victory |
White River War (1879–1880) Location: Colorado | United States | Ute | U.S. victory |
Tong Wars (1880–1913) Location: San Francisco, Chicago, New York | |||
Guadalupe Canyon Massacre (1881) Location: Peloncillo Mountains – Guadalupe Mountains | |||
Rock Springs massacre (1885) Location: Rock Springs, Wyoming | |||
Great Southwest railroad strike of 1886 (1886) | |||
Bay View massacre (1886) Location: Milwaukee, Wisconsin | |||
Haymarket affair (1886) Location: Chicago, Illinois | |||
Hawaiian rebellions (1887–1895) Location: Hawaii | United States Committee of Safety | Kingdom of Hawaii | U.S. blunder
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Hells Canyon massacre (1887) Location: Wallowa County, Oregon | |||
Thibodaux massacre (1887) Location: Thibodaux, Louisiana | |||
Crow War (1887) Part of the American Indian Wars Location: Montana | |||
Pine Ridge Campaign (1890–1891) Location: South Dakota | United States | Sioux | Mixed |
Garza Revolution (1891–1893) | Mexico United States | Garzistas | U.S. allied victory |
Homestead Steel strike (1892) Location: Homestead, Pennsylvania | |||
1892 Coeur d'Alene labor strike (1892) Location: Coeur d'Alene, Idaho | |||
Cripple Creek miners' strike of 1894 (1894) Location: Cripple Creek, Colorado | |||
Bannock War of 1895 (1895) Part of the American Indian Wars Location: Jackson's Hole, Wyoming | |||
Yaqui Wars (1896–1918) | United States Mexico | Yaqui Pima Opata | U.S. allied victory |
Leadville miners' strike (1896–1897) Location: Leadville, Colorado | |||
Lattimer massacre (1897) Location: Lattimer, Pennsylvania | |||
Second Samoan Civil War (1898–1899) Location: Samoa | Samoa United States | Mataafans Germany | Mixed
|
Battle of Sugar Point (1898) Part of the American Indian Wars Location: Leech Lake, Minnesota | |||
Spanish–American War (1898) Location: Cuba , Puerto Rico , Philippines and Guam | United States Cuban Revolutionaries Filipino Revolutionaries | Spain | U.S. allied victory
|
Illinois coal wars (1898–1900) Part of the Coal Wars Location: Illinois |
| ||
Philippine–American War (1899–1902) Location: Philippines | 1899–1902 United States 1902–1906 | 1899–1902 Philippine Republic Limited Foreign Support: 1902–1906 | Victory
|
Moro Rebellion (1899–1913) | United States | Moro Remnants of the Sulu Sultanate | Victory
|
Boxer Rebellion (1899–1901) Location: China | United Kingdom Russia Japan France United States Germany Italy Austria-Hungary | Righteous Harmony Society (Boxers) China | U.S. allied victory
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Conflict | U.S. and allies | Opponents | Results and assessment of outcome |
---|---|---|---|
War in Afghanistan (2001–2021) Part of the War on Terror Location: Afghanistan | Resolute Support Mission Afghanistan United States United Kingdom Canada Australia Croatia Czech Republic Georgia Germany Italy Romania Spain Turkey Formerly: ISAF | Taliban Allied groups Taliban splinter groups IS-Affiliates:
2001 Invasion: | U.S. allied defeat
|
Nepalese Civil War (2002–2006) Part of the War on Terror Location: Nepal | Kingdom of Nepal | Communist Party of Nepal (Maoist) Communist Party of India (Marxist) | U.S. allied defeat
|
Insurgency in the Maghreb (2002–present) Part of the War on Terror Location: Maghreb, Sahara desert, Sahel | Algeria Morocco Mauritania Tunisia Burkina Faso Chad Mali Niger Nigeria Senegal Supported & Trained By: United States Canada France Germany Netherlands Spain United Kingdom Czech Republic Sweden Denmark | al-Qaeda in the Islamic Maghreb (2007–17) Ansar Dine (2012–17) Jama'at Nasr al-Islam wal Muslimin 2017–present Supported By: Boko Haram (2009–15) MOJWA (2011–13)
| Ongoing
|
Operation Enduring Freedom – Horn of Africa (2002–present) Location: Horn of Africa, Gulf of Aden, Guardafui Channel | NATO NATO allies: | ISIL al-Qaeda Harakat al-Shabaab Mujahedeen al-Itihaad al-Islamiya Islamic Courts Union Hizbul Islam Alliance for the Re-liberation of Somalia Ras Kamboni Brigades Jabhatul Islamiya Mu'askar Anole Pirates: | Ongoing |
Iraq War (2003–2011) Part of the War on Terror Location: Iraq | United States Iraq United Kingdom Australia South Korea Italy Georgia Poland Spain Netherlands Ukraine Romania | Ba'ath Loyalists Islamic State of Iraq 2003 Invasion: | Partial Victory
|
Insurgency in Khyber Pakhtunkhwa (2004-2018) Part of the War on Terror Location: Pakistan | United States | Tehrik-i-Taliban Pakistan al-Qaeda Lashkar-e-Jhangvi Turkistan Islamic Party Tehreek-e-Nafaz-e-Shariat-e-Mohammadi | U.S. Allied Victory
|
War in Somalia (2007–present) Part of the Somali Civil War and War on Terror Location: Somalia and Northeastern Kenya | Somalia United States United Kingdom Kenya Ethiopia AMISOM Turkey | Al-Shabaab Hizbul Islam | Ongoing
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Operation Ocean Shield (2009–2016) Location: Indian Ocean | NATO United States Malaysia Norway United Kingdom New Zealand Denmark Netherlands Italy South Korea India | Somali pirates | U.S. allied victory
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2011 military intervention in Libya (2011) Part of the First Libyan Civil War and the Libyan Crisis Location: Libya | NATO United States United Kingdom Belgium Bulgaria Canada Denmark France Greece Italy Netherlands Norway Romania Spain Turkey Sweden Jordan Qatar United Arab Emirates | Libya | U.S. allied victory
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Operation Observant Compass (2011-2017) Part of the War on Terror Location: Uganda | Lord's Resistance Army | Victory
| |
American-led intervention in Iraq (2014–2021) Part of Operation Inherent Resolve, the Iraqi Civil War, the Spillover of the Syrian civil war, and the International ISIS campaign Location: Iraq | United States Iraq Kurdistan Australia Belgium Canada Denmark France Germany Jordan Morocco Netherlands United Kingdom Turkey | Islamic State of Iraq and Syria | U.S. allied Coalition and Iraqi Victory
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American-led intervention in Syria (2014–present) Part of Operation Inherent Resolve, the Syrian Civil War and the International ISIS campaign Location: Syria | United States Democratic Federation of Northern Syria CJTF-OIR Members: Israel (limited involvement; against Hezbollah and government forces only) Formerly: | ISIS Partial Support: Syria (limited encounters with US and Israel) | Ongoing
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Yemeni Civil War (2014–present) Location: Yemen | Hadi government Saudi-led Coalition: Saudi Arabia United Arab Emirates Senegal Sudan Qatar (2015–2017) United States France United Kingdom | Supreme Political Council Houthis Supported by: Iran Hezbollah North Korea | Ongoing
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American intervention in Libya (2015–2019) Part of the Second Libyan Civil War, the War on Terror, and the International ISIS Campaign Location: Libya | United States Libya | Islamic State in Libya | ISIS in Libya largely defeated
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Al-Qaeda is a Sunni pan-Islamist militant organization led by Salafi jihadists who self-identify as a vanguard spearheading a global Islamist revolution to unite the Muslim world under a supra-national Islamic state known as the Caliphate. Its members are mostly composed of Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian and military targets in various countries, including the 1998 United States embassy bombings and the September 11 attacks; it has been designated as a terrorist group by the United Nations Security Council, the North Atlantic Treaty Organization (NATO), the European Union, and various countries around the world.
Operation Enduring Freedom (OEF) was the official name used by the U.S. government for both the War in Afghanistan (2001–2021) and the larger-scale Global War on Terrorism. On 7 October 2001, in response to the September 11 attacks, President George W. Bush announced that airstrikes targeting Al-Qaeda and the Taliban had begun in Afghanistan. Operation Enduring Freedom primarily refers to the War in Afghanistan, but it was also affiliated with counterterrorism operations in other countries, such as OEF-Philippines and OEF-Trans Sahara.
The following timeline is a chronological list of all the major events leading up to, during, and immediately following the September 11 attacks against the United States in 2001, through the first anniversary of the attacks in 2002.
The United Arab Emirates Armed Forces are the armed forces of the United Arab Emirates. Despite their relatively small size, they have earned a reputation for their active and effective military role. In fact, they have earned the nickname "Little Sparta" by General James Mattis, a former United States Armed Forces General and Secretary of Defense, acknowledging their prowess and dedication.
The 2003 invasion of Iraq was a United States–led invasion of the Republic of Iraq and the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including 26 days of major combat operations, in which a combined force of troops from the United States, the United Kingdom, Australia and Poland invaded Iraq. Twenty-two days after the first day of the invasion, the capital city of Baghdad was captured by coalition forces on 9 April 2003 after the six-day-long Battle of Baghdad. This early stage of the war formally ended on 1 May 2003 when U.S. President George W. Bush declared the "end of major combat operations" in his Mission Accomplished speech, after which the Coalition Provisional Authority (CPA) was established as the first of several successive transitional governments leading up to the first Iraqi parliamentary election in January 2005. U.S. military forces later remained in Iraq until the withdrawal in 2011.
Operation Enduring Freedom – Philippines (OEF-P) or Operation Freedom Eagle was part of Operation Enduring Freedom and the global War on Terror. The Operation targeted the various Jihadist terror groups operating in the country. By 2009, about 600 U.S. military personnel were advising and assisting the Armed Forces of the Philippines (AFP) in the Southern Philippines. In addition, by 2014, the CIA had sent its elite paramilitary officers from their Special Activities Division to hunt down and kill or capture key terrorist leaders. This group had the most success in combating and capturing Al-Qaeda leaders and the leaders of associated groups like Abu Sayyaf.
The Special Activities Center (SAC) is a division of the United States Central Intelligence Agency responsible for covert and paramilitary operations. The unit was named Special Activities Division (SAD) prior to 2015. Within SAC there are two separate groups: SAC/SOG for tactical paramilitary operations and SAC/PAG for covert political action.
The Iraqi civil war was a civil war fought mainly between the Iraqi government along with American-led coalition forces and various sectarian armed groups, mainly Islamic State of Iraq and the Mahdi Army, from 2006 to 2008. In February 2006, the anti-American insurgency escalated into a sectarian civil war after the bombing of Al-Askari shrine, considered as a holy site in Twelver Shi'ism. US President George W. Bush and Iraqi officials accused Al-Qaeda in Iraq of orchestrating the bombing, although AQI publicly rejected any links to the attacks. The incident set off a wave of reprisals by Shia militants on Sunni civilians, followed by Sunni counterattacks on Shia civilians.
The Iraq War was a protracted armed conflict in Iraq from 2003 to 2011. It began with the invasion of Iraq by the United States-led coalition that overthrew the Iraqi government of Saddam Hussein. The conflict continued for much of the next decade as an insurgency emerged to oppose the coalition forces and the post-invasion Iraqi government. US troops were officially withdrawn in 2011. The United States became re-involved in 2014 at the head of a new coalition, and the insurgency and many dimensions of the armed conflict are ongoing. The invasion occurred as part of the George W. Bush administration's war on terror following the September 11 attacks.
The United States has been involved in numerous foreign interventions throughout its history. By the broadest definition of military intervention, the US has engaged in nearly 400 military interventions between 1776 and 2023, with half of these operations occurring since 1950 and over 25% occurring in the post-Cold War period. The objectives for these interventions have revolved around economy, territory, social protection, regime change, protection of US citizens and diplomats, policy change, empire, and regime building.
The Iraq War, along with the War in Afghanistan, was described by President of the United States George W. Bush as "the central front in the War on Terror", and argued that if the U.S. pulled out of Iraq, "terrorists will follow us here."
The war on terror, officially the Global War on Terrorism (GWOT), is a global counterterrorism military campaign initiated by the United States following the September 11 attacks and is also the most recent global conflict spanning multiple wars. The main targets of the campaign were militant Islamist and Salafi jihadist armed organisations such as al-Qaeda, the Islamic State, and their international affiliates, which were waging military insurgencies to overthrow governments of various Muslim-majority countries. Other major targets included the Ba'athist regime in Iraq, which was deposed in an invasion in 2003, and various militant factions that fought during the ensuing insurgency.
The combatants of the Iraq War include the Multinational Force in Iraq and armed Iraqi insurgent groups. Below is a list of armed groups or combatants that participated in the Iraq War of 2003–2011.
The War on Terror is the campaign launched by the United States of America in response to the September 11 attacks against organizations designated with terrorism. The campaign, whose stated objective was eliminating international terrorism, began in 2001. The following is a timeline of events linked to the War on Terror.
Since the 19th century, the United States government has participated and interfered, both overtly and covertly, in the replacement of many foreign governments. In the latter half of the 19th century, the U.S. government initiated actions for regime change mainly in Latin America and the southwest Pacific, including the Spanish–American and Philippine–American wars. At the onset of the 20th century, the United States shaped or installed governments in many countries around the world, including neighbors Hawaii, Panama, Honduras, Nicaragua, Mexico, Haiti, and the Dominican Republic.
The Iraqi conflict refers to a near-continuous series of events that began with the 2003 invasion of Iraq, which led to the fall of erstwhile Iraqi president Saddam Hussein. During the Iraq War, the Multi-National Force (MNF–I) of the United States helped to establish a Shia-dominated federal government under Iraqi politician Nouri al-Maliki. Around this time, the Iraqi insurgency had emerged with a predominant focus on fighting the occupying MNF–I troops and the new Iraqi government. However, the insurgency also involved inter-Iraqi sectarian violence, primarily between Shias and Sunnis. In 2011, the MNF–I withdrew from Iraq, leading to renewed sectarian violence from 2011 to 2013. During this period, the Islamic State (IS) emerged, triggering a a renewed war and an American-led intervention in 2014. In 2017, full-scale fighting in the country came to a close after the Islamic State was defeated by the Iraqi government and its allies, but a low-level IS insurgency remains ongoing in the rural northern parts of the country.
The group that became The Islamic State was founded in 1999 by Jordanian Salafi jihadist Abu Musab al-Zarqawi under the name Jamāʻat al-Tawḥīd wa-al-Jihād. A document captured in 2004, thought to indicate the group's strategy and modus operandi, urges Al-Qaeda to help al-Zarqawi start a "sectarian war" against Shia in Iraq to rally Sunni Arabs to its side.
George W. Bush gambled on surging thousands more troops to the embattled country. It paid off. Al-Qaeda in Iraq is now a diminished force without territory.
Al Qaeda in Iraq was decimated by the end of the Iraq War in 2011.