Monroe Doctrine

The Monroe Doctrine is a United States policy that was introduced on December 2, 1823, which stated that further efforts by European countries to colonize land or interfere with states in the Americas would be viewed by the United States of America as acts of aggression requiring US intervention. The Monroe Doctrine asserted that the Western Hemisphere was not to be further colonized by European countries, and that the United States would not interfere with existing European colonies nor in the internal concerns of European countries. The Doctrine was issued at the time when many Latin American countries were on the verge of becoming independent from Spain, and the United States, reflecting concerns echoed by Great Britain, hoped to avoid having any European power take Spain's colonies. However, the immediate provocation was the Russian Ukase of 1821 asserting rights to the Northwest and forbidding non-Russian ships from approaching the coast.