The importance of the Monroe Doctrine to European countries was established in the United States as what?

Although initially disregarded by the great powers of Europe, the Monroe Doctrine became a mainstay of U.S. foreign policy. In 1823 U.S. President James Monroe proclaimed the U.S. protector of the Western Hemisphere by forbidding European powers from colonizing additional territories in the Americas.

d is the answer

i took the

~coco

not really a history or a question at all.

explanation:

maybe this isn't the best place to ask this, maybe a social media platform like twitter or instagram? -austin