How does the Monroe Doctrine impact the role of the United States has in international affairs today (ie treaties and alliances with other countries)?

Monro's doctrine is a key element of the course of international politics of the United States.

Explanation:

In December 1823, James Monroe made several points that would form the United States' political attitudes concerning foreign policy. Attitudes ultimately represented the official policy of the United States. The main points of the Monr Doctrine were as follows: The United States has no intention of interfering in internal affairs or possible wars on the European continent, the United States also does not want to interfere and recognize colonies formed in the Western Hemisphere, states that oppress any people in the Western Hemisphere it will be considered an enemy of the United States, and the last point made is to emphasize the closure of the Western Hemisphere for eventual future colonization.

a, c, & d are correct:

they wanted lands to settle the extra population.

they wanted new markets for english goods.

they wanted to avoid civil war.

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