Monroe Doctrine(redirected from Munro Doctrine)
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(Government, Politics & Diplomacy) a principle of US foreign policy that opposes the influence or interference of outside powers in the Americas
the doctrine, essentially stated by President Monroe in 1823, that the U.S. opposed further European colonization of or intervention in the Western Hemisphere.
1823 A declaration closing the Western hemisphere to European colonization and interference while accepting existing European colonies.