Definitions for "Monroe doctrine"
See under Doctrine.
declaration (in 1823) by President James Monroe that further European colonization in the Western Hemisphere would be taken as a hostile act against the United States. In the twentieth century, an interpretation of the Doctrine has been used to justify U.S. interference in the internal affairs of Latin American countries. "Monroe Doctrine" Britannica Online.
(1823) = The dominant American international policy of the early republic.......Stating the U.S. would not accept the interference of European (any non-American) powers and politics in the Western Hemisphere.