Answer:
The Monroe Doctrine, which was first articulated by President James Monroe in 1823, stated that the United States would not interfere with existing European colonies or European affairs in general, but would oppose any further colonization or intervention in the Western Hemisphere by European powers. Essentially, the doctrine asserted that the Americas were off-limits to European powers seeking new colonies or expansion of existing ones and that any such efforts would be considered a threat to the security and peace of the United States. So, the United States would not interfere with European interests in Europe or other parts of the world, but would not allow them to extend their influence in the Americas.
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