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Main Interaction Type

Covert action

Imperialism

Military Action

Peacekeeping

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How Many Countries has the US Invaded as of 2024?

While the Russian invasion of Ukraine dominated headlines in early 2022 and the countries Germany invaded were a vital part of World War II, the United States has itself been an aggressor on many occasions. Instances of the United States invading non-U.S. territory range throughout the country's history, from the 1805 Battle of Derna in what is now Libya to the 2001-2021 takeover and occupation of Afghanistan.

No single list of countries the U.S. has invaded can be considered truly comprehensive for the simple reason that there exist many differing definitions of precisely which military actions can be classified as an invasion. For example, if one counts only the times the U.S. has declared war on another country and fought on foreign land, there would be 11 instances of invasion spread across five wars.

Countries the U.S. has invaded after a declaration of war:

CountryYearWarNotes
Great Britain1812War of 1812Maritime engagements, no war on British home soil
Mexico1846Mexican-American War
Spain1898Spanish-American WarCuba and Spain's Pacific territories, not Spanish mainland
Germany1917World War I
Austria-Hungary1917World War I
Germany1941World War II
Italy1941World War II
Japan1941World War II
Bulgaria1942World War II
Hungary1942World War II
Romania1942World War II

On the other hand, if one's definition of an invasion were to include any significant hostile incursion into another country's territory, even if war were not officially declared, the list could include several more entries. For example, a list compiled by Dr. Gideon Polya of La Trobe University in 2013 included the following:

The ultimate list of countries invaded by the United States

Finally, if one's definition of an invasion is expanded to include any instance in which U.S. forces interacted with a foreign country or territory—including areas in the Western Hemisphere that were foreign territories at the time but are now U.S. states—one could cite hundreds of incidents since the founding of the country. In fact, according to historians Christopher Kelly and Stuart Laycock, the United States has been "militarily involved" with every country on the globe but three: Andorra, Bhutan, and Liechtenstein.

A more complete tally of the United States' international "use of force" incidents can be seen in the table below, compiled from multiple previously published lists, including those created by the Congressional Research Service (CRS), the Global Policy Forum. Note that even this list should not be considered comprehensive. For example, many covert operations lack a known official record, and so will not appear.

Note that this list, detailed and inclusive as it is, can also be misleading. The CRS counts any event of any size, even those that were just a small posse entering another country to pursue a criminal. The CRS also expressly states that the legality of the events on the list has not been taken into consideration—for instance, if the U.S. sends troops to protect its embassy during a civil war or deploys a deterrent force into a country whose neighbor is amassing troops on its border, the act would likely be considered welcome by some participants and an invasion by others.

As such, the source lists (and in turn, the list below) include many events which may or may not fit one's definition of an invasion. For instance, peacekeeping missions in which the U.S. was (arguably) invited into non-U.S. territory, humanitarian missions such as disaster relief efforts, or WWII battles in which the U.S. landed on the shores of a Pacific island such as Vanuatu—technically an invasion—in order to repel Japanese forces already occupying it. In light of this extreme level of inclusiveness, additional details of each event are included to enable each reader to filter the invasions from the non-invasions according to their own unique criteria.

  • Some countries listed no longer exist or exist under a different government.
  • Data is divided into two tables; the first for military/peacekeeping actions and the second for humanitarian actions.
  • According to the Congressional Research Service (CRS), the legality of most instances listed has not been addressed under domestic or international law. As such, it is highly likely that many listed incidents (particularly those classified as peacekeeping or humanitarian missions) were considered a welcome presence rather than an invasion.
  • The scale of listed events ranges from quick incidents involving only a few individuals to years-long wars involving millions of soldiers.
  • According to the CRS, the list does not include the following types of incident: covert operations (though some were included by other sources); domestic disaster relief; routine alliance stationing and training exercises; occurrences in which U.S. forces have been stationed abroad since World War II in occupation forces or for participation in mutual security organizations, base agreements, or routine military assistance or training operations; the Civil and Revolutionary Wars; or the continual use of U.S. military units in the exploration, settlement, and pacification of the western part of the United States.

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Country
Main Interaction Type
Invasion Year
Specific Role
Additional Details
ChinaPeacekeeping
  • 1843
  • 1854
  • 1855
  • 1856
  • 1859
  • 1866
  • 1894-1895
  • 1898-1899
  • 1900
  • 1911
  • 1912-1941
  • 1916
  • 1932
  • 1945
  • 1946-1949
  • 1954-1955
  • retaliation
  • protection
  • piracy suppression
  • protection
  • protection
  • retaliation
  • protection
  • protection
  • protection
  • protection
  • protection
  • protection
  • protection
  • military action
  • protection
  • protection
  • Retaliation for scuffle between American and Chinese sailors in what is now Guangzhou
  • Protected U.S. citizens and interests during political unrest
  • Protected U.S. interests and fought pirates
  • Protected U.S. interests during China/Britain conflict, retaliate for attack on U.S. ship
  • Protected U.S. interests
  • Retaliation for attack on U.S. consul
  • Protected U.S. lives, served as honor guard
  • Protected U.S. interests during political ceremony
  • Protected lives during Boxer Rebellion
  • Protected U.S. interests as revolution neared
  • Protected U.S. interests during revolution and invasion by Japan
  • Quell riot on American property in China
  • Protected U.S. interests during Japanese occupation
  • Assist in retaking control from Japanese
  • Protected U.S. interests during revolution, significant number of troops fighting, advising, and training
  • Evacuated U.S. citizens and forces from Tachen (Dachen) islands
RussiaPeacekeeping
  • 1918-1922
  • 1920-1922
  • protection
  • protection
  • Protected U.S. interests during battle with Czechoslovakia and in response to Bolshevik revolution
  • Protected U.S. interests during social unrest
EthiopiaPeacekeeping
  • 2004-2005
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
EgyptPeacekeeping
  • 1956
  • 1983
  • 2011
  • 2015
  • 2017
  • protection
  • peacekeeping
  • protection
  • terrorist suppression
  • peacekeeping
  • Evacuated U.S. citizens and others curing Suez crisis
  • Surveillance plane sent to Egypt in response to bombing in Sudan
  • Protected U.S. lives and property during unrest
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
  • Ongoing security efforts as part of peace treaty between Egypt and Israel
DR CongoPeacekeeping
  • 2011-2017
  • terrorist suppression
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
IranPeacekeeping
  • 1946
  • 1953
  • 1980
  • 1987-1989
  • peacekeeping
  • covert action
  • military action
  • peacekeeping
  • Troops deployed in north
  • CIA operation arranges coup of government
  • Attempted to rescue American hostages.
  • U.S. forces block Iranian shipping, shoot down airliner
TurkeyPeacekeeping
  • 1858-1859
  • 1912
  • 1919
  • 1922
  • 2015
  • show of force
  • protection
  • protection
  • protection
  • terrorist suppression
  • In response to killing of Americans
  • Protected U.S. interests during Balkan War
  • Protected U.S. interests during Greek occupation
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
ThailandPeacekeeping
  • protection
  • Protected country during threat of communist invasion
TanzaniaPeacekeeping
  • peacekeeping
  • Anti-poaching training
United KingdomPeacekeeping
  • peacekeeping
  • Provided deterrent air presence in wake of Russian invasion of Crimea
KenyaPeacekeeping
  • 1999
  • 2004-2005
  • peacekeeping
  • peacekeeping
  • Protected U.S. lives and embassy after bombing
  • Deployed troops as part of effort to combat terrorism
ColombiaPeacekeeping
  • 1868
  • 1873
  • 1895
  • 1989
  • protection
  • protection
  • protection
  • peacekeeping
  • Protected U.S. lives and interests during moment of unrest
  • Protected U.S. interests during civil unrest
  • Protected U.S. lives and interests during political revolt
  • Helped track down drug manufacturers and traffickers
South KoreaPeacekeeping
  • 2014
  • 2015
  • 2017-2021
  • 2022
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • Support South Korea army
  • Complemented existing security forces
  • Ongoing presence in country in response to North Korean threats and behavior
  • Regular rotation of forces to support the United States’ commitment to the Republic of Korea
UgandaPeacekeeping
  • 2011-2017
  • terrorist suppression
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
SudanPeacekeeping
  • terrorist suppression
  • Bombed suspected camps of Osama Bin Laden in response to embassy bombings
ArgentinaPeacekeeping
  • 1833
  • 1852-1853
  • 1890
  • protection
  • protection
  • protection
  • Naval forces sent to Buenos Aires to protect U.S. interests during insurrection
  • Protected U.S. interests during revolution
  • Protected U.S. interests during civil unrest
PolandPeacekeeping
  • 2014
  • 2017-2019
  • 2022
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Buildup of NATO forces in respose to Russia's build-up of forces on Ukraine border
MoroccoPeacekeeping
  • protection
  • Rescue and protection of kidnapped Americans
UkrainePeacekeeping
  • 2014
  • 2018
  • peacekeeping
  • Investigate plane crash
  • Enhance defensive capability
Saudi ArabiaPeacekeeping
  • 1990
  • 2019
  • peacekeeping
  • peacekeeping
  • Force build-up to protect Saudi Arabia during Iraq invasion of Kuwait
  • Enhance defensive capability
YemenPeacekeeping
  • 2000
  • 2002-2006
  • 2012-2013
  • 2015
  • 2016
  • 2018
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • terrorist suppression
  • military action
  • peacekeeping
  • Deliver assistance after bombing of U.S. warship
  • Deployed troops as part of effort to combat terrorism
  • Protecting U.S. lives and property amid security threats
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
  • Missile strikes on insurgent facilities
  • Help grow Yemeni forces in fight against terrorism, offer humanitarian assistance
PeruPeacekeeping
  • 1835-1836
  • 1989
  • protection
  • peacekeeping
  • Protected U.S. interests during revolution.
  • Helped track down drug manufacturers and traffickers
Ivory CoastPeacekeeping
  • 1843
  • 2002
  • piracy suppression
  • peacekeeping
  • peacekeeping
  • Possibly other African countries as well
  • Sent forces to defend and evacuate Americans and allies if needed
CameroonPeacekeeping
  • terrorist suppression
  • Sent with consent to combat terrorist group
NigerPeacekeeping
  • 2013
  • 2017
  • peacekeeping
  • peacekeeping
  • Supported intelligence gathering for French forces in Mali
  • Advise-and-assist mission in support of domestic forces
TaiwanPeacekeeping
  • 1950-1955
  • protection
  • Protected U.S. interests during attacks from mainland China
ChadPeacekeeping
  • peacekeeping
  • Surveillance plane sent to Egypt in response to bombing in Sudan
SomaliaPeacekeeping
  • 1995
  • 2012-2013
  • 2015
  • 2022
  • military action
  • terrorist suppression
  • terrorist suppression
  • peacekeeping
  • Assisted in withdrawal of U.N. troops
  • Fought al-Qaeda, rescued kidnapped U.S. and Danish citizens kidnapped by pirates
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
  • U.S. forces would provide advise-and-assist support but would not be directly involved in conflict
GuatemalaPeacekeeping
  • 1920
  • 1954
  • 1967
  • protection
  • covert action
  • peacekeeping
  • Protected U.S. interests during social unrest
  • CIA executed government coup
  • Counter-insurgency activity
RwandaPeacekeeping
  • 1994
  • 1996
  • protection
  • protection
  • Evacuated U.S. citizens during unrest
  • Supported refugees amid period of unrest
BurundiPeacekeeping
  • peacekeeping
  • Airlifted French forces and supplies
BoliviaPeacekeeping
  • 1986
  • 1989
  • peacekeeping
  • peacekeeping
  • U.S. forces assist government in anti-drug operations
  • Helped track down drug manufacturers and traffickers
Dominican RepublicPeacekeeping
  • 1798-1800
  • 1814-1825
  • 1903-1904
  • 1914
  • 1916-1924
  • 1965
  • Military action
  • Piracy suppression
  • Protection
  • MIlitary action
  • Protection
  • Protection
  • Undeclared Naval war with France (DR was French territory)
  • In several Caribbean islands
  • Defended US interests during revolution
  • Established neutral zone and stopped bombardment during revolution
  • Maintained order during political instability
  • Protected US lives and interests during revolt
JordanPeacekeeping
  • 2013
  • 2015
  • peacekeeping
  • terrorist suppression
  • Trained Jordanian forces, prepared for possible Syrian conflict
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
South SudanPeacekeeping
  • 2011-2017
  • 2015
  • terrorist suppression
  • protection
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
  • Protect U.S. embassy amid civil unrest
CubaPeacekeeping
  • 1814-1825
  • 1906-1909
  • 1912
  • 1917-1933
  • 1933
  • 1961
  • 1962
  • 2015
  • piracy suppression
  • protection
  • protection
  • protection
  • show of force
  • covert action } Cuban missile crisis
  • terrorist suppression
  • Extended to several islands of the Caribbean
  • Protected U.S. interests after revolution
  • Protected U.S. interests during civil unrest
  • Protected U.S. interests during and after insurrection, occupied for 15 years
  • Show of force during revolution
  • Failed Bay of Pigs invasion backed by CIA
  • Instituted Naval blockade and quarantine on Soviet missile shipments to Cuba
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
HondurasPeacekeeping
  • 1903
  • 1907
  • 1911
  • 1912
  • 1919
  • 1924-1925
  • 1983-1989
  • protection
  • protection
  • protection
  • protection
  • peacekeeping
  • protection
  • peacekeeping
  • Protected U.S. interests during revolution
  • Protected U.S. interests during war with Nicaragua
  • Protected U.S. interests during civil war
  • Protected U.S. interests, but withdrawn shortly
  • Maintained order during civil strife
  • Protected U.S. interests during hostile election and unrest that followed
  • U.S. transported Honduran troops to border to deter invasion from Nicaragua
GreecePeacekeeping
  • 1827
  • 1947-1949
  • 2001
  • 2017
  • piracy suppression
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • Marines invade the Greek islands of Argentiere, Miconi and Andross.
  • Counter-insurgency activity
  • Deployed troops as part of effort to combat terrorism
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
Sierra LeonePeacekeeping
  • 1992
  • 1997
  • 2000
  • protection
  • peacekeeping
  • peacekeeping
  • Evacuated Americans during military coup
  • Sent forces to defend and evacuate Americans and allies if needed
  • Sent forces to defend and evacuate Americans and allies if needed, deliver supplies to U.N. peacekeepers
NicaraguaPeacekeeping
  • 1853
  • 1854
  • 1857
  • 1867
  • 1894
  • 1896 & 1898
  • 1899
  • 1907
  • 1910
  • 1912-1933
  • 1926-1933
  • 1981-1990
  • protection
  • retaliation
  • police action
  • military action
  • protection
  • protection
  • protection
  • protection
  • protection
  • protection
  • protection
  • covert action
  • Protected U.S. citizens and interests during political unrest
  • Retaliation for political insult
  • Reining in rogue U.S. sea captain
  • Occupied Managua and Leon
  • Protected U.S. interests during revolution
  • Protected U.S. lives and interests during political unrest
  • Protected U.S. interests during political insurrection
  • Occupied major population centers during unrest
  • Protected U.S. interests during unrest
  • Protected U.S. interests during and after attempted revolution, occupy for 20 years
  • Protected U.S. interests during coup d'etat and revolution
  • CIA backs Contra rebel groups, drops mines in harbors
El SalvadorPeacekeeping
  • 1932
  • 1981-1992
  • peacekeeping
  • peacekeeping
  • Navy intervenes in conflict
  • U.S. advisors trained troops to help quell insurgency, conducted counter-insurgency activities
Republic of the CongoPeacekeeping
  • 1960
  • 1964
  • 1965
  • 1967
  • 1997
  • covert action
  • protection
  • protection
  • peacekeeping
  • CIA backed government overthrow
  • Assisted Congolese and Belgian troops during rebellion
  • Protected government during revolt
  • Sent forces to defend and evacuate Americans and allies from Zaire if needed
DenmarkPeacekeeping
  • peacekeeping
  • Assisted ongoing NATO mission to secure Europe against Russian imperialism
Central African RepublicPeacekeeping
  • 1996
  • 2011-2017
  • 2013
  • protection
  • terrorist suppression
  • peacekeeping
  • Protected embassy and evacuated U.S. citizens and allies during unrest
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
  • Airlifted French forces and supplies
LiberiaPeacekeeping
  • 1990
  • 1996
  • 1998
  • 2003
  • protection
  • protection
  • peacekeeping
  • military action
  • Protected U.S. lives and interests during period of unrest
  • Protected embassy and evacuated U.S. citizens and allies during unrest
  • Sent forces to defend and evacuate Americans and allies if needed
  • Provided humanitarian assistance, restored order, prepared to defend and evacuate Americans and allies if needed
PalestinePeacekeeping
  • protection
  • Protected U.S. official
Costa RicaPeacekeeping
  • show of force
  • Prevented war between Panama and Costa Rica
OmanPeacekeeping
  • peacekeeping
  • Counter-insurgency activity
KuwaitPeacekeeping
  • 1991
  • 1992
  • 2015
  • 2017-2020
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • terrorist suppression
  • Helped repel Iraq from Kuwait
  • Performed exercises on border to deter further Iraqi invasion
  • Complemented existing security forces
  • Counterterrorism efforts against the Islamic State of Iraq and the Levant (ISIL)
CroatiaPeacekeeping
  • 1919
  • 1995
  • peacekeeping
  • peacekeeping
  • Maintained order during civil strife
  • Bombed Serb airfield
EritreaPeacekeeping
  • 2004-2005
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
GeorgiaPeacekeeping
  • 2002-2004
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
UruguayPeacekeeping
  • 1855
  • 1858
  • 1868
  • protection
  • protection
  • protection
  • Protected U.S. interests during revolution
  • Protected U.S. interests during revolution
  • Protected U.S. lives during insurrection
AlbaniaPeacekeeping
  • 1997-1998
  • 2001
  • protection
  • peacekeeping
  • Protected embassy and evacuated U.S. citizens and allies during unrest
  • Deployed troops as part of effort to combat terrorism
JamaicaPeacekeeping
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
LithuaniaPeacekeeping
  • 2014
  • 2019
  • peacekeeping
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Enhance defensive capability
GabonPeacekeeping
  • peacekeeping
  • Sent forces to defend and evacuate Americans and allies from Zaire if needed
Guinea BissauPeacekeeping
  • protection
  • Evacuated Americans and allies
North MacedoniaPeacekeeping
  • 1993-1994
  • 2001
  • peacekeeping
  • peacekeeping
  • Maintained order and stability during period of unrest
  • Disarmed Albanian rebels, deployed troops as part of effort to combat terrorism
LatviaPeacekeeping
  • 2014
  • 2023
  • peacekeeping
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Assisted ongoing NATO mission to secure Europe against Russian imperialism
Trinidad and TobagoPeacekeeping
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
EstoniaPeacekeeping
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
DjiboutiPeacekeeping
  • 2003-2006
  • 2015
  • peacekeeping
  • terrorist suppression
  • Deployed troops as part of effort to combat terrorism
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
BahamasPeacekeeping
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
IcelandPeacekeeping
  • 1941
  • 2018
  • protection
  • peacekeeping
  • Taken under protection at request of Iceland government
  • Enhance defensive capability
SamoaPeacekeeping
  • 1841
  • 1885
  • 1888-1889
  • 1899
  • retaliation
  • protection
  • protection
  • protection
  • Retaliation for the murder of American sailor
  • Naval force deployed.
  • Protected U.S. lives and interests during civil war
  • Protected U.S. interests during political unrest
BermudaPeacekeeping
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
GreenlandPeacekeeping
  • protection
  • Taken under protection at request of Greenland government
Falkland IslandsPeacekeeping
  • 1831-1832
  • police action
  • Investigating capture of three American ships
MexicoMilitary Action
  • 1836
  • 1844
  • 1846-1848
  • 1859
  • 1866
  • 1870
  • 1873-1896
  • 1876
  • 1913
  • 1914-1919
  • military action
  • protection
  • Mexican War
  • police action
  • military action
  • piracy suppression
  • police action
  • protection
  • military action
  • undeclared hostilities
  • Troops assist Texas war for independence.
  • Protected former Mexican territory of Texas from Mexico
  • War over U.S. annexation of Texas. Mexico cedes significant territory to the US
  • Pursuit of bandit Juan Cortina
  • Misguided incursion in the name of protecting Texas, retreated after 3 days
  • Destroyed pirate ship
  • Border incursions in pursuit of cattle thieves. Formally legitimized in 1882
  • Helped Americans evacuate during civil unrest
  • Protected U.S. lives and interests during civil unrest
JapanMilitary Action
  • 1853-1854
  • 1863
  • 1864
  • 1868
  • 1941-1945
  • show of force
  • retaliation
  • peacekeeping
  • protection
  • World War II
  • Retaliation for firing upon U.S. vessel
  • Protected diplomat to display U.S. power
  • Protected U.S. interests during civil war
  • Multiple operations
VietnamMilitary Action
  • 1960-1964
  • 1964-1975
  • 1975
  • military action
  • Vietnam War
  • military action
  • U.S. began to send military advisors and special forces
  • Supported South Vietnam in war against North Vietnam
  • Evacuated refugees and U.S. nationals
GermanyMilitary Action
  • 1917-1918
  • 1941-1945
  • 2017
  • 2020
  • 2022
  • World War I
  • World War II
  • peacekeeping
  • peacekeeping
  • peacekeeping
  • Multiple operations
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Assisted ongoing NATO mission to secure Europe against Russian imperialism
  • Buildup of NATO forces in respose to Russia's build-up of forces on Ukraine border
FranceMilitary Action
  • 1798-1800
  • Undeclared Naval War with France
  • No landing in mainland France, but in French territory
ItalyMilitary Action
  • 1941-1945
  • 1948
  • 1985
  • World War II
  • covert action
  • peacekeeping
  • Multiple operations
  • CIA involved in national election
  • U.S. planes forced Egyptian airliner carrying hijackers who killed American to land in Italy
IraqMilitary Action
  • 1991-1993
  • 1998-2001
  • 2003-2011
  • 2016-2021
  • military action
  • military action
  • Iraq War
  • military action
  • Helped repel Iraq from Kuwait and deter further incursion. Many encounters. Would control airspace until 2003
  • Bombed military targets including facilities with suspected capability to manufacture weapons of mass destruction
  • Deposed Saddam Hussein-led government
  • Liberate city of Mosul from Islamic occupiers
AlgeriaMilitary Action
  • Second Barbary War
  • US naval fleet under Captain Stephen Decatur wages "Second Barbary War" in North Africa.
AfghanistanMilitary Action
  • 1998
  • 2001-2021
  • terrorist suppression
  • military action
  • Bombed suspected camps of Osama Bin Laden in response to embassy bombings
  • Usurped al-Qaeda and Taliban-led government of Afghanistan, would occupy until 2021
CanadaMilitary Action
  • Naval incident on the Canadian border leads to mobilization of a large force to invade Canada. War is narrowly averted.
SyriaMilitary Action
  • 1903
  • 2015
  • 2017-2019
  • protection
  • terrorist suppression
  • military action
  • Protected U.S. interests during unrest
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
  • Sent to assist fight against Islamic state, destroy chemical weapons capabilities
RomaniaMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
NetherlandsMilitary Action
  • 1941
  • 2023
  • military action
  • peacekeeping
  • Occupied Dutch Guiana at request of exiled Netherland government
  • Assisted ongoing NATO mission to secure Europe against Russian imperialism
HaitiMilitary Action
  • 1888
  • 1891
  • 1914
  • 1915-1934
  • 1959
  • 1991
  • 1993-1996
  • 2004
  • show of force
  • protection
  • protection
  • protection
  • military action
  • covert action
  • military action
  • covert action
  • Recovered captured U.S. ship
  • Protected U.S. interests
  • Protected U.S. lives during revolution
  • Maintained order during political instability
  • Marine intervention
  • CIA backed government coup
  • Enforced U.N. embargo against Haiti, later removed non-democratic government, occupied until previous government restored
  • CIA backed government overthrow
HungaryMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
LaosMilitary Action
  • 1962
  • 1962-1975
  • 1971-1973
  • covert action
  • military action
  • military action
  • CIA backed government overthrow
  • Supported anti-Communist military forces
  • Entered country alongside South Vietnamese
SerbiaMilitary Action
  • 1999-2012
  • military action
  • Conducted air strikes to deter violence against Albanians in Kosovo, supplied troops to U.N. peacekeepers
LibyaMilitary Action
  • 1981
  • 1986
  • 1989
  • 2011-2012
  • 2015
  • military action
  • military action
  • military action
  • military action
  • terrorist suppression
  • U.S. fighter jets shot down Libyan jets that fired on them
  • U.S. forces attacked terrorists in Libya
  • U.S. fighter jets shot down Libyan jets that "demonstrated hostile intentions"
  • Support U.N. forces, help enforce no-fly zone, execute drone stikes
  • Counterterrorism efforts against al-Qaeda, the Taliban, and the Islamic State of Iraq and the Levant (ISIL)
ParaguayMilitary Action
  • retaliation
  • Prompted by attack on U.S. naval vessel
BulgariaMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
LebanonMilitary Action
  • 1958
  • 1976
  • 1982-1984
  • 2006
  • peacekeeping
  • military action
  • military action
  • protection
  • Maintained order during threatened insurrection
  • Evacuated Americans and Eurpoeans during civil unrest
  • U.S. troops joined Multinational Force to evacuate Palestine Liberation force from Beirut
  • Evacuated Americans and allies
IrelandMilitary Action
  • 1812-1815
  • War of 1812
  • War fought at sea and in British territory in North America
PanamaMilitary Action
  • 1903-1914
  • 1912
  • 1918-1920
  • 1922
  • 1925
  • 1958
  • 1964
  • 1988-1990
  • 1989-1990
  • protection
  • peacekeeping
  • peacekeeping
  • show of force
  • protection
  • military action
  • military action
  • military action
  • military action
  • Protected U.S. interests following revolution
  • Supervised election
  • Police duty during and after elections
  • Prevented war between Panama and Costa Rica
  • Protected U.S. interests during riots
  • U.S. forces engaged with locals
  • U.S. forces engaged with locals
  • Protected U.S. lives and interests during revolt, then removed corrupt government
  • U.S. forces overthrow dictator Manuel Noriega
Bosnia and HerzegovinaMilitary Action
  • 1994-2006
  • military action
  • Aided Bosnian Muslims in war against Bosnian Serbs, remained as peacekeeping and anti-terrorism force for some time
Timor LesteMilitary Action
  • 1999-2002
  • military action
  • Assisted U.N. forces in establishing peace, delivering humanitarian aid, establishing government
CyprusMilitary Action
  • military action
  • Evacuated U.S. nationals during Turkey/Greece conflict
FijiMilitary Action
  • 1840-1841
  • 1855
  • 1855
  • retaliation
  • retaliation
  • retaliation
  • Retaliation for attacking American explorers
  • Retaliation for preying upon U.S. citizens and sailors
  • Retaliation for murder of American traders
KiribatiMilitary Action
  • retaliation
  • Called Taputeoiea (Tabiteuea) or Drummond’s Island at the time. Revenge for murder of U.S. sailor
GrenadaMilitary Action
  • military action
  • Protected lives and restored order at request of nearby nations
Puerto RicoImperialism
  • 1814-1825
  • 1898
  • piracy suppression
  • imperialism
  • Extended to several islands of the Caribbean
  • Annex Spanish territory Puerto Rico
GuamImperialism
  • 1898
  • 1903
  • imperialism
  • protection
  • Annex Spanish territory Guam Island
  • Navy begins contruction of permanent base
IndonesiaCovert action
  • covert action
  • CIA backed government overthrow
BrazilCovert action
  • 1894
  • 1964
  • show of force
  • covert action
  • Show of force to protect shipping lanes during Civil War
  • CIA backed government overthrow
PhilippinesCovert action
  • 1898
  • 1899-1901
  • 1947-1954
  • 1989
  • 2002
  • imperialism
  • protection
  • covert action
  • peacekeeping
  • peacekeeping
  • Take control of Spanish territory Philippines
  • Protected U.S. interests during revolution
  • CIA operations
  • Helped government quell coup attempt
  • Deployed troops as part of effort to combat terrorism
AngolaCovert action
  • 1860
  • 1976-1992
  • protection
  • covert action
  • Protected U.S. citizens from violent locals
  • CIA and military operations conducted
GhanaCovert action
  • covert action
  • CIA backed government overthrow
ChileCovert action
  • 1891
  • 1973
  • protection
  • covert action
  • Protected U.S. interests during civil war
  • CIA backed government overthrow
EcuadorCovert action
  • covert action
  • CIA backed government overthrow
CambodiaCovert action
  • 1969-1975
  • 1970
  • 1975
  • 1997
  • covert action
  • peacekeeping
  • military action
  • peacekeeping
  • CIA backed government overthrow, bombing along Vietnam border
  • Assisted withdrawal of U.S. troops from South Vietnam
  • Marines engaged government forces
  • Sent forces to defend and evacuate Americans and allies if needed
showing: 108 rows

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Country Involved
Years
Main Interaction Type
Additional Details
Albania1999HumanitarianCombat terrorism efforts
Bosnia and Herzegovina1993HumanitarianAided Bosnian Muslims during the war in Yugoslavia
Colombia2018HumanitarianWater well construction, information exchange, Provide medical, dental, and veterinary care
Dominica2017HumanitarianEvacuations after hurricane
Ecuador2018 | 2019HumanitarianProvide medical, dental, and veterinary care | Medical assistance
El Salvador2018HumanitarianWater well construction, information exchange
Germany1948HumanitarianCircumvented blockade to deliver supplies to Berlin
Guatemala2017 | 2020HumanitarianProvide medical, dental, and veterinary care |Disaster relief after hurricane
Haiti2016-2017 | 2021HumanitarianDisaster relief after hurricane |Disaster relief after earthquake and tropical storm
Honduras2017 | 2018 | 2020HumanitarianProvide medical, dental, and veterinary care |Water well construction, information exchange |Disaster relief after hurricane
Italy2020HumanitarianCOVID-19 relief
Japan2019HumanitarianAssisted search for missing Japanese pilot
Kenya1998HumanitarianMedical and disaster relief after bombing of U.S. embassy
Liberia2014-2015HumanitarianAssisted in humanitarian efforts to overcome Ebola epidemic
North Macedonia1999HumanitarianDelivered humanitarian relief to Kosovar refugees
Panama2018 | 2020HumanitarianWater well construction, information exchange |Disaster relief after hurricane
Peru2017 | 2018HumanitarianDisaster relief after flooding |Provide medical, dental, and veterinary care
Philippines2012-2013HumanitarianDelivered humanitarian relief to typhoon victims
Puerto Rico2017HumanitarianDisaster relief after hurricane
Senegal2014-2015HumanitarianAssisted in humanitarian efforts to overcome Ebola epidemic
Somalia1992-1994HumanitarianAssisted in delivery of humanitarian aid during time of warring factions, helped quell violence.
Sri Lanka2017HumanitarianDisaster relief after flooding and landslides
Tanzania1998HumanitarianMedical and disaster relief after bombing of U.S. embassy
Thailand2018HumanitarianAssisted in rescue of soccer team trapped in cave
Tonga2022HumanitarianDisaster relief after undersea volcano
Trinidad and Tobago2018HumanitarianWater well construction, information exchange
Uruguay2017HumanitarianAssisted search for missing South Korean ship
Venezuela2019HumanitarianMedical assistance
West Africa2014-2015HumanitarianAssisted in humanitarian efforts to overcome Ebola epidemic
showing: 29 rows

How Many Countries has the US Invaded as of 2024?

How many countries were invaded by the USA?

In total, the United States has invaded 68 countries in its history, although the US did not declare war on all of these countries.

Frequently Asked Questions

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