The correct answer to this open question is the following.
What was the reason for the creation of the Monroe Doctrine?
In 1823, President Monroe realized the political, economic, and security importance of the Latin America region for the United States. That is why James Monroe established his foreign policy because he wanted to make a clear statement for the European nations could understand.
The United States was going to impede European powers to colonize any region of Latin America. This meant that they had no to interfere with the destiny of newly independent nations as was the case of México that had gotten its independence from Spain in 1821.
The United States chose to make this type of statement because it wanted to be the nation that could intervene in teh issues of Latin America. President Monroe wanted European superpowers out of the American continent. Colonization in Latin America was not an option anymore.
In exchange, Monroe also said that the United States won't intervene in the foreign issues of Europe