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Monroe and Adams realized that American recognition would not protect the new countries against military intervention to restore Spain's power. In October 1823 Richard Rush, the American minister in London, advised that Foreign Secretary George Canning was proposing that the U.S. and Britain jointly declare their opposition to European intervention.  Galvanized by the British initiative, Monroe consulted with American leaders and then formulated a plan with Adams and incorporated it in his annual message to Congress in December 1823. The principles that have become known as the [[Monroe Doctrine]].  

Monroe and Adams realized that American recognition would not protect the new countries against military intervention to restore Spain's power. In October 1823 Richard Rush, the American minister in London, advised that Foreign Secretary George Canning was proposing that the U.S. and Britain jointly declare their opposition to European intervention.  Galvanized by the British initiative, Monroe consulted with American leaders and then formulated a plan with Adams and incorporated it in his annual message to Congress in December 1823. The principles that have become known as the [[Monroe Doctrine]].  

The Monroe Doctrine, which followed up George Washington's admonitions ahgainst foreign entanglements, was the work of British Foreign Minister George Canning and Monroe's Secretary of State [[John Quincy Adams]] more than of Monroe. At the time it pertained more to the Russians in North America than to the former Spanish colonies in South America. The result was a system of American isolationism under the sponsorship of the British navy.  

The Monroe Doctrine, which followed up George Washington's admonitions against foreign entanglements, was the work of British Foreign Minister George Canning and Monroe's Secretary of State [[John Quincy Adams]] more than of Monroe. At the time it pertained more to the Russians in North America than to the former Spanish colonies in South America. The result was a system of American isolationism under the sponsorship of the British navy.  

The Monroe Doctrine held that the United States considered the Western Hemisphere as no longer a place for European colonization; that any future effort to gain further political control in the hemisphere or to violate the independence of existing states would be treated as an act of hostility; and finally that there existed two different and incompatible political systems in the world. Therefore the United States promised to refrain from intervention in European affairs and demanded Europe to abstain from interfering with American matters. In the event there were few serious European attempts at intervention.

The Monroe Doctrine held that the United States considered the Western Hemisphere as no longer a place for European colonization; that any future effort to gain further political control in the hemisphere or to violate the independence of existing states would be treated as an act of hostility; and finally that there existed two different and incompatible political systems in the world. Therefore the United States promised to refrain from intervention in European affairs and demanded Europe to abstain from interfering with American matters. In the event there were few serious European attempts at intervention.

The most important violation was the French takeover of Mexico during the American Civil War; at war's end the U.S. sent a combat army to the border and the French went home.

The most important violation was the French takeover of Mexico during the American Civil War; at war's end the U.S. sent a combat army to the border and the French went home.

==Further reading==

==Further reading==

* Bemis, Samuel Flagg. ''John Quincy Adams and the Foundations of American Foreign Policy'' (1949), the standard history of Monroe's foreign policy.  

* Bemis, Samuel Flagg. ''John Quincy Adams and the Foundations of American Foreign Policy'' (1949), the standard history of Monroe's foreign policy.  

[[category:United States History]]

[[category:United States History]]

[[category:diplomacy]]

[[category:diplomacy]]