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United States Involvement in Other Countries 2024

The story of United States (U.S) involvement in other countries began in the 19th Century and continues all the way to the current era. US actions are often driven by economic opportunities, such as in the Pacific and Latin America, alongside the Monroe Doctrine, which urged the U.S. to seek a policy to repel European colonization in Western Hemisphere.

Other factors that call for foreign interventions by the U.S. include:

  • Health projects
  • Advancing democracy
  • Defending territories
  • Preventing the spread of nuclear weapons
  • Countering terror attacks
  • Defending human rights

19th Century U.S. involvements

1846 to 1848: U.S. and Mexico warred over California, Texas and what is now American South West. The U.S. troops invaded parts of Mexico, including Mexico City and Veracruz.

1854: Commodore Mathew Perry negotiated the Kanagawa Convention, which opened Japan to diplomacy and Western, ending its s national isolation. Later, the U.S. advanced an Open Door Policy that led to equal economic access to China in 1899.

1871: After an ambush, the American force comprising 650 people started a punitive campaign and captured and occupied several Korean strongholds.

1898: The short but significant Spanish-American War resulted in overwhelming victories for America against the Spanish Kingdom. The U.S. army invaded Spanish-controlled Cuba, granting it independence.

20th-Century U.S. involvements

The 20th Century saw the U.S. get involved in the First and Second World Wars. The U.S. troops joined their allies in international campaigns to fight against Imperial Japan and Nazi Germany.

World war II gave rise to a foreign policy of containment to prevent the spread of world communism. And the subsequent cold war resulted in the Eisenhower, Truman, Carter, Kennedy, and Reagan Doctrines. This made America embrace regime change, proxy conflicts, espionage, and other covert activities against the Soviet Union.

1991: The Soviet Union collapsed, and the U.S. became the world's sole superpower. Henceforth, the U.S continued interventions in Eastern Europe, the Middle East and Africa.

2001: After the 2001 attacks, the U.S. collaborated with other NATO countries to launch the Global War on Terror, which waged counterterrorism campaigns against extremist groups like Islamic State and al-Qaeda in various countries.

2003: The bush doctrine saw America invade Iraq, and the military extended its presence in Asia and Africa through the foreign internal defence policy.

2014: In response to the Russian annexation of Crimea. Obama’s administration set up a program called the European Deterrence Initiative (EDI) that aimed at bolstering American military manifestation in Eastern and Central Europe. EDI funded the Atlantic Resolve operation to enhance NATO’s military planning capabilities.

2015: President Obama authorized U.S. forces to offer intelligence and logistical support to Saudi Arabia in their martial intervention in Yemen. The act established a joint planning cell between the countries like the U.S. and British troops who took part in the blockade of Yemen.

2019: During Donald Trump's reign, tensions between America and Iran triggered a crunch in the Persian Gulf, making the U.S. bolder in its intervention in the region.

2021: the Biden administration declared al-Shabaab in Mozambique a terrorist group, requesting the Mozambique government to intercede in the Cabo Delgado conflict. A special force was deployed to train the Mozambican marines.

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Country
US Involvement in Other Countries
Year
Additional Details
AfghanistanAfghanistan1998, | 2001.
1998 - Attack on targets in the country. | 2001 - Air attacks and ground operations oust Taliban gov...
AngolaAngola1976-1992
1976-1992 - Military and CIA operations.
ArgentinaArgentina1833, | 1852-1853, | 1890
1833 - Forces land in Buenos Aires and engage local combatants. | 1852-1853 - Marines land in Buenos...
BoliviaBolivia1986
1986 - Special Forces units engage in counter-insurgency.
Bosnia and HerzegovinaBosnia1993-1995
1993-1995 - Active military involvement with air and ground forces.
BrazilBrazil1964
1964 - CIA-backed military coup overthrows the government of Joao Goulart and Gen. Castello Branco t...
CambodiaCambodia1969-1975, | 1975
1969-1975 - CIA supports military coup against Prince Sihanouk, bringing Lon Nol to power. Intensive...
CanadaCanada1837
1837 - Naval incident on the Canadian border leads to mobilization of a large force to invade Canada...
ChileChile1891, | 1973
1891 - US sailors land in the major port city of Valparaiso. | 1973 - CIA-backed military coup ousts...
ChinaChina1843, | 1856, | 1859, | 1866, | 1894-1895 | 1900, | 1911-1941, | 1922-1927, | 1927-1934, | 1934, | 1946-1949
1843 - Marines land in Canton. | 1856 - Marines deployed in Canton. | 1859 - Troops enter Shanghai. ...
ColombiaColombia1856, | 1860, | 1865, | 1866, | 1870, | 1873, | 1885, | 1895, | 1901. | 1902, | 1903
1856 - Marines land for a counter-insurgency campaign. | 1860 - Troops and naval forces deployed. | ...
CroatiaCroatia1995
1995 - Krajina Serb airfields attacked.
CubaCuba1822-1825, | 1898, | 1906-1909, | 1912, | 1917-1933, | 1933, | 1961, | 1962
1822-1825 - Marines land in numerous cities in the Spanish island of Cuba and also in Spanish Puerto...
Dominican RepublicDominican Republic1903, | 1914, | 1916-1924, | 1965
1903 - Marines land in Santo Domingo. | 1914 - Naval forces engage in battles in the city of Santo D...
DR CongoCongo1960, | 1965, | 1996-1997
1960 - CIA-backed overthrow and assassination of Prime Minister Patrice Lumumba. | 1965 - CIA backed...
EcuadorEcuador1963
1963 - CIA backs military overthrow of President Jose Maria Valesco Ibarra.
EgyptBritish Egypt1882
1882 - Troops land.
El SalvadorEl Salvador1932, | 1981-1992
1932 - Naval forces intervene. | 1981-1992 - CIA and special forces begin a long counterinsurgency c...
Falkland IslandsFalkland/Malvinas Islands1831
1831 - US naval squadrons aggress the Falkland Islands in the South Atlantic.
FijiFiji1840-1841, | 1858
1840-1841 - Naval forces deployed, marines land. | 1858 - Marines land.
FranceFrance1798-1800
1798-1800 - Undeclared naval war against France, marines land in Puerto Plata.
GhanaGhana1966
1966 - CIA-backed military coup ousts President Kwame Nkrumah.
GreeceGreece1827, | 1947-1949
1827 - Marines invade the Greek islands of Argentiere, Miconi and Andross. | 1947-1949 - US forces w...
GrenadaGrenada1983
1983 - Military forces invade Grenada.
GuamGuam1898, | 1903
1898 - Naval forces seize Guam Island from Spain and the US holds the island permanently. | 1903 - N...
GuatemalaGuatemala1920, | 1954, | 1966-1967
1920 - Troops intervene. | 1954 - CIA overthrows the government of President Jacobo Arbenz Guzman. |...
HaitiHaiti1888, | 1891, | 1914-1934, | 1959, | 1991, | 1994-1996, | 2004
1888 - Troops landed. | 1891 - Marines land on US-claimed Navassa Island. | 1914-1934 - Troops land,...
HondurasHonduras1903, | 1907, | 1911, | 1912, | 1919, | 1924-1925, | 1983-1989
1903 - Marines go ashore at Puerto Cortez. | 1907 - Marines land and take up garrison in cities of T...
IndonesiaIndonesia1965
1965 - CIA-backed army coup overthrows President Sukarno and brings Gen. Suharto to power.
IranIran1946, | 1953, | 1980, | 1984, | 1987-1988
1946 - Troops deployed in the northern province. | 1953 - CIA overthrows the government of Prime Min...
IraqIraq1990-1991, | 1991-2003, | 1998, | 2003, | 2003-present
1990-1991 - Major military operation, including naval blockade, air strikes; a large number of troop...
ItalyItaly1948
1948 - Heavy CIA involvement in national elections.
Ivory CoastIvory Coast1843
1843 - Marines land.
JapanJapan1854, | 1863, | 1864, | 1868
1854 - Commodore Perry and his fleet deploy at Yokohama. | 1863 - Troops land at Shimonoseki. | 1864...
LaosLaos1962, | 1965-1973, | 1971-1973
1962 - CIA-backed military coup. | 1965-1973 - Bombing campaign begin, lasting eight years. | 1971-1...
LebanonLebanon1958, | 1982-1984
1958 - US marines and army units totaling 14,000 land. | 1982-1984 - Marines land and naval forces f...
LiberiaLiberia1990, | 1997
1990 - Troops deployed, | 1997 - Troops deployed.
LibyaLibya1981, | 1986, | 1989
1981 - Naval jets shoot down two Libyan jets in maneuvers over the Mediterranean.| 1986 - US aircraf...
MexicoMexico1836, | 1842, | 1846-1848, | 1859, | 1876, | 1913, | 1914, | 1915-1916
1836 - Troops assist Texas war for independence. | 1842 - Naval forces temporarily seize cities of M...
NicaraguaNicaragua1854, | 1857, | 1867, | 1981-1990, | 1894, | 1896, | 1898, | 1899, | 1907, | 1910, | 1912-1933
1854 - Navy bombards and largely destroys city of San Juan del Norte. Marines land and set fire to t...
North KoreaNorth Korea1871, | 1894-1896, | 1904-1905, | 1950-1953
1871-Forces landed. | 1894-1896 - Marines land and remain in Seoul. | 1904-1905 - Marines land and s...
North MacedoniaMacedonia2001
2001 - NATO troops shift and partially disarm Albanian rebels.
OmanOman1970
1970 - Counter-insurgency operation, including coordination with Iranian marine invasion.
PanamaPanama1908, | 1912, | 1918-1920, | 1925, 1958, | 1964, | 1989-1990
1908 - Marines land and carry out operations. | 1912 - Army troops intervene. | 1918-1920 - Troops i...
ParaguayParaguay1859
1859 - Large naval force deployed.
PeruPeru1835-1836
1835-1836 - Troops dispatched twice for counter-insurgency operations.
PhilippinesPhilippines1948-1954, | 1989, | 1898, | 1899
1948-1954 - Commando operations, "secret" CIA war. | 1989 - CIA and Special Forces involved in count...
Puerto RicoPuerto Rico (formerly Spanish Colony)1822-1825
1822-1825 - Marines land in numerous cities in the Spanish island of Cuba and also in Spanish Puerto...
RussiaRussia1918-1922
1918-1922 - Naval forces and army troops fight battles in several areas of the country during a five...
SamoaSamoa1841, | 1885, | 1888, | 1889, | 1899
1841 - Naval forces deployed, marines land. | 1885 - Naval force deployed. | 1888 - Marines landed. ...
SomaliaSomalia1992-1994
1992-1994 - Special operations forces intervene.
SudanSudan1998
1998 - Air strikes destroy country's major pharmaceutical plant.
TaiwanTaiwan1867
1867 - Marines land.
TurkeyTurkey1849, | 1922
1849 - Naval force dispatched to Smyrna. | 1922 - Marines engaged in operations in Smyrna (Izmir).
United KingdomBritain1812
1812 - War of 1812, includes naval and land operations.
UruguayUruguay1855, | 1858, | 1868
1855 - Financial and materiel support for colonial French military operations, leads eventually to d...
VietnamVietnam1954, | 1960-1964, | 1965-1975
1954 - Financial and materiel support for colonial French military operations, leads eventually to d...
showing: 57 rows

How is the US involved with other countries?

Some of the goals the US has when dealing with other countries are to promote democracy and defend human rights. Providing health services, responding to terror attacks, and defending territories are all other reasons the US might get involved with another country.

Frequently Asked Questions