The roots of the US’ imperialist behaviour against Latin American countries begins soon after the time of its own independence from British rule in 1776. In the beginning, the US consisted of 13 states (erstwhile British colonies), and the process of formal expansion apparently ended only in 1959 when the country admitted Hawaii as its 50th state. Most of the states incorporated into the US were territories previously held by a nearly 300-year-old collapsing Spanish empire (through Adams Onis Treaty in 1819) or from states like Mexico that had declared independence from Spain. In fact, the Treaty of Guadalupe Hidalgo after the Mexican-American War (1846-1848) ceded nearly half of the Mexican territory to the victorious United States. Thus, the states of Florida, California, Nevada, Utah, Arizona, New Mexico, Texas, Colorado, Wyoming and Louisiana, were once part of the Spanish empire.