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A Brief History of American Imperialism

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The United States saw its territory more than double in the first three decades of the 19th century. Bursting with nationalist fervor, an insatiable desire for more land, and a rapidly increasing population, the western frontiers of the United States would not remain east of the Mississippi. The eventual spread of the American nation beyond the Mississippi into Native and French land, referred to as “Manifest Destiny” by John O’Sullivan, was rationalized as a realization of their God given duty. The Louisiana Purchase set the precedent for unrestricted westward expansion in America, and allowed for others to follow in his footsteps. Characterized by racist overtones, a lack of the “consent of the governed, and ethnic cleansing, there is no …show more content…

During the presidency of James Madison, the question of what to do about Spanish controlled Florida came to the forefront. Florida would be of immense importance for both the protection of the United States from Spain, and for the access it would give to the Gulf of Mexico for trading ports. Recognizing this, Madison instructed John Quincy Adams, then Secretary of State, to being negotiations with Don Luis de Onís, Spanish Minister to the United States, on the exact borders between U.S. and Spanish territory. However during these negotiations, future president and General, Andrew Jackson invaded Florida. When Onís protested to this invasion, it was rebutted by Adams that, “Florida had long been a refuge for hostile Indians, runaway black slaves, and outlaws […] the U.S. might be forced to seize the territory as a matter of self-defense.” It also showed that the forced seizure of the land could be swiftly accomplished at any time. Seeing this, Florida agreed to sell the territory to the United States for 5 million dollars, under the Adams-Onís Treaty of 1819, during the Presidency of James Monroe. Not only was this another example of territorial expansion without the “consent of the governed”, it showed that the the interpretation of the Constitution by Jefferson was continued in presidencies to come, without

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