13 h 27 m, 2 dez 1823 ano - Monroe Doctrine

Descrição:

This began the U.S. policy of opposing British colonialism in the Americas, with specifications that any efforts by European nations to take control of any independent states in North or South America would be seen as unfriendly actions against the United States. This doctrine was responsible for keeping European nations from meddling in any Western Hemisphere business.

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