The Monroe Doctrine: Warning Europe to Stay Out of South America

Which doctrine did the United States pass in 1823, warning Europe to stay out of South America?

A. the Monroe Doctrine
B. the Truman Doctrine
C. the Marshall Doctrine

Answer:

The United States passed the Monroe Doctrine in 1823, warning Europe to stay out of South America.

Explanation: The doctrine that the United States passed in 1823, warning Europe to stay out of South America, is called the Monroe Doctrine. This doctrine was named after President James Monroe and it asserted that any attempt by European countries to colonize or interfere with independent countries in the Americas would be viewed as acts of aggression. The Monroe Doctrine became a cornerstone of U.S. foreign policy and helped establish the United States as a dominant power in the Western Hemisphere.