1. After gaining independence in the early 1800s, many Latin American countries struggled with poverty, political instability, and dependence on foreign nations for investment and trade. 2. The U.S. came to dominate economic and political affairs in Latin America through policies like the Monroe Doctrine, interventions in countries like Cuba and Panama, and the Roosevelt Corollary, which authorized U.S. policing of the Western Hemisphere. 3. This growing U.S. influence in Latin America in the late 1800s and early 1900s established America as the dominant power in the region.