The philosophy drove 19th-century U.S. territorial expansion and was used to justify the forced removal of Native Americans and other groups from their homes. The rapid expansion of the United States intensified the issue of slavery as new states were added to the Union, leading to the outbreak of the Civil War.
Answer:
Between 1982 and 2007, land used in agriculture dropped from 54 to 51 percent of total U.S. land area
Explanation:
It kept critics and dissenters away from the main population by imprisoning them in remote labor camps. Usually they were executed if they showed to be too much of a threat
Because America was founded on a promise of freedom and the citizens of America still love the freedom and don't want communism where the people don't have freedoms.