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:
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.
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.
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.
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.
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.