The Monroe Doctrine proclaimed that European nations should do what in relation to the Western Hemisphere?

The Monroe Doctrine, articulated in 1823 by President James Monroe, primarily aimed to establish a clear boundary regarding European intervention in the Americas. The doctrine asserted that the Western Hemisphere was off-limits to new European colonization and that any attempt by European nations to influence or control any part of the Americas would be considered a threat to the peace and safety of the United States. This foundational principle emphasized the sovereignty and independence of the nations within the Western Hemisphere, effectively calling for European powers to refrain from interfering in its affairs.

This aspect of the Monroe Doctrine was crucial in the context of rising nationalist sentiments in Latin America and the broader geopolitical landscape of the 19th century, as it signified the United States' intention to assert its influence in the region while encouraging the independent development of Latin American nations free from European control.