Which 1823 doctrine of us foreing policy stated theat European countries?

The 1823 doctrine of U.S. foreign policy known as the Monroe Doctrine asserted that European countries should no longer colonize or interfere in the affairs of the Americas. It declared that any attempt by European powers to extend their influence in the Western Hemisphere would be viewed as a hostile act against the United States. This doctrine aimed to protect newly independent nations in Latin America and establish the U.S. as a dominant power in the region.