Westward expansion in the United States can be accredited to Thomas Jefferson who was instrumental in ensuring that people would not encounter any resistance from the French by buying Louisiana for $15 million. After the purchase, the federal government encouraged the families of the pioneers to take as much land as they can from the west as it was their “God-given” responsibility to grow and expand. Land buyers and speculators went on a land buying fest which ensured that they had as much land as possible which they could divide and sell at small tracts of land to individuals who wanted to farm. The assistance from the federal government ensured that the people who wanted to venture to the west were given the required loans to buy land and settle, security to ensure any repression of natives, and equipment’s that would ensure a smooth transition. The emergence of the agricultural revolution, expansion of the railroad network and exploration into the mining and extraction of minerals like gold that was found in the west propelled the expansion. In essence, the westward expansion of the United States affected the nation, geographically, socially, economically, demographically, politically and militarily. However, the major hurdle that stood between the settlers and the government were the red Indians who dwelled in those areas and they had a cultural and social attachment with those lands.
 Perdue, Theda, and Michael D. Green. The Cherokee removal: a brief history with documents. Vol. 18. Boston: Bedford/St. Martin’s, 2005.
 Billington, Ray Allen, and Martin Ridge. Westward expansion: a history of the American frontier. UNM Press, 2001.