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Monroe Doctrine

Definition

The Monroe Doctrine was a foreign policy statement issued by President James Monroe in 1823. It declared that any European colonization or intervention in the Americas would be considered an act of aggression towards the United States and that the U.S. would not interfere in European affairs.

Analogy

Think of the Monroe Doctrine as a 'No Trespassing' sign on your front lawn. It warns others to stay off your property, and if someone ignores it and comes onto your land without permission, you have every right to defend yourself and take action.

Related terms

Manifest Destiny: The belief held by many Americans in the 19th century that it was their destiny to expand across the continent from coast to coast.

Isolationism: An approach to foreign policy that seeks to avoid involvement in international conflicts or alliances.

Gunboat Diplomacy: The use of military force or threats of force to achieve diplomatic objectives during international negotiations.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.