U.S imperialism refers to the policy of expanding American influence and control over other countries or territories. This often involved economic, political, and military domination.
Related terms
Annexation: Annexation is the act of adding territory to an existing country by force or treaty.
Manifest Destiny: Manifest Destiny was the belief in the 19th century that Americans were destined to expand across the continent from coast to coast.
Open Door Policy: The Open Door Policy was a U.S. foreign policy that sought equal trading rights with China and access to its markets for all nations.