Question

What did U.S. leaders believe would be achieved by adopting the Monroe Doctrine?

Answer 1

to warned European powers not to interfere in the affairs of the Western Hemisphere.

Step-by-step explanation:

President James Monroe's 1823 annual message to Congress contained the Monroe Doctrine, which warned European powers not to interfere in the affairs of the Western Hemisphere. Understandably, the United States has always taken a particular interest in its closest neighbors – the nations of the Western Hemisphere.