Presidential Image Gallery

The Monroe Doctrine

December 02, 1823
Source: National Archives

On December 2, 1823, President James Monroe articulated what has become known as the Monroe Doctrine in his annual address to the Congress. The doctrine outlined two principles that became the basis of American foreign policy: American neutrality in European affairs and the right of the United States to intervene to protect nations of the Western Hemisphere against European encroachment and aggression.

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