Which of these best summarizes the Monroe Doctrine? (1 point) Responses The power to nullify federal laws is necessary to preserve sovereignty. The power to nullify federal laws is necessary to preserve sovereignty. The immigration of Europeans to the United States must be discouraged. The immigration of Europeans to the United States must be discouraged. International peace can be maintained without complicated alliances. International peace can be maintained without complicated alliances. Further colonization of the Americas by European countries is prohibited.

Answer 1

The best summary of the Monroe Doctrine is: Further colonization of the Americas by European countries is prohibited.

The Monroe Doctrine, articulated in 1823, aimed to prevent further European interference in the Americas and asserted that any such attempts would be viewed as acts of aggression toward the United States.