American imperialism

Expansion of American political, economic, and military influence

American imperialism is the exercise of power by the United States outside its borders. The United States expanded its territory initially via conquest and colonialism, later shifting to controlling/influencing other countries without conquest, using techniques such as alliances; neocolonialism; aid; gunboat diplomacy; unequal treaties; trade; sanctions; support for preferred political factions; regime change; economic influence via private companies; soft power; and cultural influence. American expansion ended in the late 19th century, with the exception of some Caribbean and Western Pacific islands.

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