United States

How Many Countries has the US Invaded as of 2025?

US Invaded - Main Interaction Type

Covert action

Imperialism

Military Action

Peacekeeping

US Invaded - Main Interaction Type

69
8
29
Country
US Invaded - Main Interaction Type
Invasion Year
Specific Role
Additional Details
Indonesia Flag
IndonesiaCovert action1965
  • covert action
  • CIA backed government overthrow
Brazil Flag
BrazilCovert action
  • 1894
  • 1964
  • show of force
  • covert action
  • Show of force to protect shipping lanes during Civil War
  • CIA backed government overthrow
Philippines Flag
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
Angola Flag
AngolaCovert action
  • 1860
  • 1976-1992
  • protection
  • covert action
  • Protected U.S. citizens from violent locals
  • CIA and military operations conducted
Ghana Flag
GhanaCovert action1966
  • covert action
  • CIA backed government overthrow
Chile Flag
ChileCovert action
  • 1891
  • 1973
  • protection
  • covert action
  • Protected U.S. interests during civil war
  • CIA backed government overthrow
Ecuador Flag
EcuadorCovert action1963
  • covert action
  • CIA backed government overthrow
Cambodia Flag
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
Puerto Rico Flag
Puerto RicoImperialism
  • 1814-1825
  • 1898
  • piracy suppression
  • imperialism
  • Extended to several islands of the Caribbean
  • Annex Spanish territory Puerto Rico
Guam Flag
GuamImperialism
  • 1898
  • 1903
  • imperialism
  • protection
  • Annex Spanish territory Guam Island
  • Navy begins contruction of permanent base
Mexico Flag
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
Japan Flag
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
Vietnam Flag
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
Germany Flag
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
France Flag
FranceMilitary Action
  • 1798-1800
  • Undeclared Naval War with France
  • No landing in mainland France, but in French territory
Italy Flag
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
Algeria Flag
AlgeriaMilitary Action1815
  • Second Barbary War
  • US naval fleet under Captain Stephen Decatur wages "Second Barbary War" in North Africa.
Iraq Flag
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
Afghanistan Flag
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
Canada Flag
CanadaMilitary Action1837
  • Naval incident on the Canadian border leads to mobilization of a large force to invade Canada. War is narrowly averted.
Syria Flag
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
Romania Flag
RomaniaMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
Netherlands Flag
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
Haiti Flag
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
Hungary Flag
HungaryMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
Laos Flag
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
Libya Flag
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)
Paraguay Flag
ParaguayMilitary Action1859
  • retaliation
  • Prompted by attack on U.S. naval vessel
Bulgaria Flag
BulgariaMilitary Action
  • 1942-1945
  • World War II
  • Multiple operations
Serbia Flag
SerbiaMilitary Action
  • 1999-2012
  • military action
  • Conducted air strikes to deter violence against Albanians in Kosovo, supplied troops to U.N. peacekeepers
Lebanon Flag
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
Ireland Flag
IrelandMilitary Action
  • 1812-1815
  • War of 1812
  • War fought at sea and in British territory in North America
Panama Flag
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 Herzegovina Flag
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-Leste Flag
Timor-LesteMilitary Action
  • 1999-2002
  • military action
  • Assisted U.N. forces in establishing peace, delivering humanitarian aid, establishing government
Cyprus Flag
CyprusMilitary Action1974
  • military action
  • Evacuated U.S. nationals during Turkey/Greece conflict
Fiji Flag
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
Kiribati Flag
KiribatiMilitary Action1841
  • retaliation
  • Called Taputeoiea (Tabiteuea) or Drummond’s Island at the time. Revenge for murder of U.S. sailor
Grenada Flag
GrenadaMilitary Action1983
  • military action
  • Protected lives and restored order at request of nearby nations
China Flag
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
Russia Flag
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
Ethiopia Flag
EthiopiaPeacekeeping
  • 2004-2005
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
Egypt Flag
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 Congo Flag
DR CongoPeacekeeping
  • 2011-2017
  • terrorist suppression
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
Iran Flag
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
Turkey Flag
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)
Thailand Flag
ThailandPeacekeeping1962
  • protection
  • Protected country during threat of communist invasion
Tanzania Flag
TanzaniaPeacekeeping2018
  • peacekeeping
  • Anti-poaching training
United Kingdom Flag
United KingdomPeacekeeping2017
  • peacekeeping
  • Provided deterrent air presence in wake of Russian invasion of Crimea
Kenya Flag
KenyaPeacekeeping
  • 1999
  • 2004-2005
  • peacekeeping
  • peacekeeping
  • Protected U.S. lives and embassy after bombing
  • Deployed troops as part of effort to combat terrorism
Colombia Flag
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 Korea Flag
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
Sudan Flag
SudanPeacekeeping1998
  • terrorist suppression
  • Bombed suspected camps of Osama Bin Laden in response to embassy bombings
Uganda Flag
UgandaPeacekeeping
  • 2011-2017
  • terrorist suppression
  • Hunting Joseph Kony, leader of Lord's Resistance Army, accused of massive war crimes
Argentina Flag
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
Yemen Flag
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
Ukraine Flag
UkrainePeacekeeping
  • 2014
  • 2018
  • peacekeeping
  • Investigate plane crash
  • Enhance defensive capability
Morocco Flag
MoroccoPeacekeeping1904
  • protection
  • Rescue and protection of kidnapped Americans
Poland Flag
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
Peru Flag
PeruPeacekeeping
  • 1835-1836
  • 1989
  • protection
  • peacekeeping
  • Protected U.S. interests during revolution.
  • Helped track down drug manufacturers and traffickers
Saudi Arabia Flag
Saudi ArabiaPeacekeeping
  • 1990
  • 2019
  • peacekeeping
  • peacekeeping
  • Force build-up to protect Saudi Arabia during Iraq invasion of Kuwait
  • Enhance defensive capability
Ivory Coast Flag
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
Cameroon Flag
CameroonPeacekeeping2015
  • terrorist suppression
  • Sent with consent to combat terrorist group
Niger Flag
NigerPeacekeeping
  • 2013
  • 2017
  • peacekeeping
  • peacekeeping
  • Supported intelligence gathering for French forces in Mali
  • Advise-and-assist mission in support of domestic forces
Taiwan Flag
TaiwanPeacekeeping
  • 1950-1955
  • protection
  • Protected U.S. interests during attacks from mainland China
Chad Flag
ChadPeacekeeping1983
  • peacekeeping
  • Surveillance plane sent to Egypt in response to bombing in Sudan
Somalia Flag
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
Guatemala Flag
GuatemalaPeacekeeping
  • 1920
  • 1954
  • 1967
  • protection
  • covert action
  • peacekeeping
  • Protected U.S. interests during social unrest
  • CIA executed government coup
  • Counter-insurgency activity
Rwanda Flag
RwandaPeacekeeping
  • 1994
  • 1996
  • protection
  • protection
  • Evacuated U.S. citizens during unrest
  • Supported refugees amid period of unrest
Burundi Flag
BurundiPeacekeeping2013
  • peacekeeping
  • Airlifted French forces and supplies
Bolivia Flag
BoliviaPeacekeeping
  • 1986
  • 1989
  • peacekeeping
  • peacekeeping
  • U.S. forces assist government in anti-drug operations
  • Helped track down drug manufacturers and traffickers
South Sudan Flag
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
Jordan Flag
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)
Dominican Republic Flag
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
Honduras Flag
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
Cuba Flag
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)
Greece Flag
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 Leone Flag
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
Nicaragua Flag
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
Republic of the Congo Flag
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
El Salvador Flag
El SalvadorPeacekeeping
  • 1932
  • 1981-1992
  • peacekeeping
  • peacekeeping
  • Navy intervenes in conflict
  • U.S. advisors trained troops to help quell insurgency, conducted counter-insurgency activities
Denmark Flag
DenmarkPeacekeeping2023
  • peacekeeping
  • Assisted ongoing NATO mission to secure Europe against Russian imperialism
Liberia Flag
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
Palestine Flag
PalestinePeacekeeping1948
  • protection
  • Protected U.S. official
Central African Republic Flag
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
Oman Flag
OmanPeacekeeping1970
  • peacekeeping
  • Counter-insurgency activity
Costa Rica Flag
Costa RicaPeacekeeping1922
  • show of force
  • Prevented war between Panama and Costa Rica
Kuwait Flag
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)
Croatia Flag
CroatiaPeacekeeping
  • 1919
  • 1995
  • peacekeeping
  • peacekeeping
  • Maintained order during civil strife
  • Bombed Serb airfield
Georgia Flag
GeorgiaPeacekeeping
  • 2002-2004
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
Eritrea Flag
EritreaPeacekeeping
  • 2004-2005
  • peacekeeping
  • Deployed troops as part of effort to combat terrorism
Uruguay Flag
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
Jamaica Flag
JamaicaPeacekeeping1940
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
Lithuania Flag
LithuaniaPeacekeeping
  • 2014
  • 2019
  • peacekeeping
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
  • Enhance defensive capability
Albania Flag
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
Gabon Flag
GabonPeacekeeping1997
  • peacekeeping
  • Sent forces to defend and evacuate Americans and allies from Zaire if needed
Guinea-Bissau Flag
Guinea-BissauPeacekeeping1998
  • protection
  • Evacuated Americans and allies
Latvia Flag
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
North Macedonia Flag
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
Trinidad and Tobago Flag
Trinidad and TobagoPeacekeeping1940
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
Estonia Flag
EstoniaPeacekeeping2014
  • peacekeeping
  • Joined NATO forces in securing Europe in wake of Russian invasion of Crimea
Djibouti Flag
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)
Bahamas Flag
BahamasPeacekeeping1940
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
Iceland Flag
IcelandPeacekeeping
  • 1941
  • 2018
  • protection
  • peacekeeping
  • Taken under protection at request of Iceland government
  • Enhance defensive capability
Samoa Flag
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
Bermuda Flag
BermudaPeacekeeping1940
  • protection
  • Protected U.S. lend-lease bases obtained from Great Britain
Greenland Flag
GreenlandPeacekeeping1941
  • protection
  • Taken under protection at request of Greenland government
Falkland Islands Flag
Falkland IslandsPeacekeeping
  • 1831-1832
  • police action
  • Investigating capture of three American ships
  • 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.

Countries US Invaded

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