During the mid-1800's Monroe's declaration which combined with the ideals of Manifest Destiny, provided guidance and support for the United States' expansion on the American continent. In the late 1800's the United States' economic and military power enabled it to enforce the Monroe Doctrine. But it was Theodore Roosevelt's Corollary that greatly extended it. The Doctrine, issued by President James Monroe in 1823, had basically warned European powers not to interfere in the Western Hemisphere's …showed first 75 words of 437 total…

…showed last 75 words of 437 total…far." The Roosevelt Corollary actually contained a great irony. At first the Monroe Doctrine had sought to prevent European intervention in the Western Hemisphere, but then the corollary justified America's intervention throughout the Western Hemisphere. It wouldn't be too long though, before President Franklin D. Roosevelt renounced interventionism and established his "Good Neighbor" policy. Although not explicitly contrary to Roosevelt's Corollary, it did supercede the "Big Stick" policy to a more subtle form of intervention.