How did the United States gain influence in Latin America?

Recent studies show that high levels of economic exchange, particularly trade and investments, and social connections between people from the U.S. and Latin American and the Caribbean, specifically through migration, remittances and other forms of socio-cultural connectedness, increases the influence in and trust of the United States.

Explanation:

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.