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2016-01-21T22:21:48+05:30
Westward expansion, particularly west of the Mississippi River, had profound effects on American politics. The Monroe Doctrine set forth a policy of Manifest Destiny that the United States should extend from the Atlantic Coast to the Pacific Coast. This expansion created a number of political crises that revolved around the expansion of slavery, dispossession of Native Americans and federal landholdings in the West.
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