Which U.S. policy aimed to justify the nation’s expansionist practices throughout Latin America?

The Monroe Doctrine is the correct response as it was specifically designed to justify U.S. expansionist practices in Latin America during the 19th century. Issued in 1823, this policy asserted that European nations should no longer colonize or interfere in the affairs of the Americas. The doctrine emphasized a sphere of influence in the western hemisphere, claiming that any attempts by European powers to extend their influence into the Americas would be viewed as acts of aggression, warranting U.S. intervention.

This policy laid the groundwork for future U.S. actions in Latin America, as it was used to support various interventions and military actions to protect American interests in the region, effectively establishing the United States as a dominant power. The Monroe Doctrine became a cornerstone of U.S. foreign policy, shaping relations with Latin American countries and asserting American influence in the region throughout the 19th and early 20th centuries.