Monroe Doctrine

Quick Facts: Who was Monroe Doctrine?

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Monroe Doctrine

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US foreign policy opposing European interference in the Western Hemisphere since 1823.

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2Day Chrono-Wiki & Primary Historical Archives

Origins & Early Life

The Monroe Doctrine is a United States foreign policy position that opposes any foreign interference in the Western Hemisphere. Originally concerned with European colonialism, it holds that any intervention in the political affairs of the Americas by foreign powers is a potentially hostile act against the United States. The doctrine was central to American grand strategy in the 20th century. President James Monroe first articulated the doctrine on December 2, 1823, during his seventh annual State of the Union Address to Congress (though it was not named after him until 1850). At the time, nearly all Spanish colonies in the Americas either had achieved or were close to independence.

Pivotal Works & Achievements

Monroe asserted that the New World and the Old World were to remain separate spheres of influence, and that further efforts by European powers to control or influence sovereign states in the region would be viewed as a threat to U.S. security. In turn, the United States would recognize and not interfere with existing European colonies nor meddle in the internal affairs of European countries. Because the U.S. lacked a credible navy and army at the time of the doctrine's proclamation, it was largely ignored by the colonial powers. While it was successfully enforced in part by the United Kingdom, which used it as an opportunity to enforce its own Pax Britannica policy, the doctrine was ignored several times over the course of the 19th century, notably with the second French intervention in Mexico. By the beginning of the 20th century, in what is regarded as a pivotal moment in the history of its foreign policy, the United States itself was able to successfully enforce the doctrine.

Enduring Legacy & Impact

It has been invoked by many U.S. statesmen and several U.S. presidents, including Ulysses S. Grant, Theodore Roosevelt, John F. Kennedy, Ronald Reagan, and Donald Trump. After 1898, the Monroe Doctrine was reinterpreted by lawyers and intellectuals as promoting multilateralism and non-intervention. In 1933, under President Franklin D. Roosevelt, the United States affirmed this new interpretation in co-founding the Organization of American States. Into the 21st century, the doctrine continues to be variably denounced, reinstated, or reinterpreted. According to Samuel Eliot Morison, "as early as 1783, then, the United States adopted the policy of isolation and announced its intention to keep out of Europe.

Chronological Milestones & Life Events

1. 1783: 1783 Milestone — According to Samuel Eliot Morison, "as early as 1783, then, the United States adopted the policy of isolation and announced its intention to keep out of Europe.
2. 1823: 1823 Milestone — President James Monroe first articulated the doctrine on December 2, 1823, during his seventh annual State of the Union Address to Congress (though it was not named after him until 1850).
3. 1898: 1898 Milestone — After 1898, the Monroe Doctrine was reinterpreted by lawyers and intellectuals as promoting multilateralism and non-intervention.
4. 1933: 1933 Milestone — In 1933, under President Franklin D.

Historical Fact-Check Quiz: Monroe Doctrine

True or False: “Did the United States possess a credible navy and army when James Monroe first articulated the doctrine in 1823?”

Answer (FALSE ❌): The text explicitly states that because the U.S. lacked a credible navy and army at the time of the doctrine's proclamation, it was largely ignored by the colonial powers.

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Frequently Asked Questions about Monroe Doctrine