Answer :
The Monroe Doctrine was significantly revised in the United States' policy toward Latin America. The Monroe Doctrine was used by American diplomats throughout the nineteenth century to warn European powers against further colonization in the Western Hemisphere. It did not imply that the United States had the authority to intervene in the internal affairs of the other American republics.
At the same time, the acquisition of the Philippines prompted the development of a new American East Asian policy. While American businessmen were eyeing the vast potential of the Chinese market, European incursions in China threatened to obstruct American access.
Thus, isolationist policies characterized American foreign policy during the 1920s.
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