American imperialism

The policies perpetuating American imperialism and expansionism are usually considered to have begun with "New Imperialism" in the late 19th century,^[3] though some consider American territorial expansion and settler colonialism at the expense of Indigenous Americans to be similar enough in nature to be identified with the same term.^[4] While the United States has never officially identified itself and its territorial possessions as an empire, some commentators have referred to the country as such, including Max Boot, Arthur M. Schlesinger Jr., and Niall Ferguson.^[5] Other commentators have accused the United States of practicing neocolonialism—sometimes defined as a modern form of hegemony—which leverages economic power rather than military force in an informal empire; the term "neocolonialism" has occasionally been used as a contemporary synonym for modern-day imperialism.


The question of whether the United States should intervene in the affairs of foreign countries has been a much-debated topic in domestic politics for the country's entire history. Opponents of interventionism have pointed to the country's origin as a former colony that rebelled against an overseas king, as well as the American values of democracy, freedom, and independence. Conversely, supporters of interventionism and of American presidents who have been labelled as “imperialists” — most notably are Andrew Jackson, James K. Polk, William McKinley, Woodrow Wilson, Theodore Roosevelt, and William Howard Taft — have justified their interventions in (or whole seizures of) various countries by citing the necessity of advancing American economic interests, such as trade and debt management; preventing European intervention (colonial or otherwise) in the Western Hemisphere, manifested in the anti-European Monroe Doctrine of 1823; and the benefits of keeping "good order" around the world.