Who was the primary supporter of the Monroe Doctrine from European nations?

The primary supporter of the Monroe Doctrine among European nations was England. When President James Monroe declared the doctrine in 1823, it established a policy of opposing European colonialism in the Americas and asserted that any intervention by external powers in the politics of the Americas would be viewed as an act of aggression.

England supported the Monroe Doctrine because they had their own interests in preventing other European powers, particularly Spain and France, from re-establishing control over former colonies in Latin America. The British viewed the doctrine as beneficial for their trade and influence in the region. They did not want to contend with other European nations that could threaten the independence of these newly formed republics, as it would likely disrupt commerce and stability in the Americas, which were crucial for British economic interests.

In contrast, nations like France, Germany, and Spain had opposing views or interests at the time, either seeking to maintain their influence in the Americas or not having as direct a stake in the situation as England did. Thus, England's aligned interests with the Monroe Doctrine solidified its role as its primary supporter among European powers.