Latin America’s relationship with the U.S. government has been difficult to say the least. The U.S. has been intervening in Latin America since President James Monroe established the Monroe Doctrine, a foreign policy that prevented European powers from colonizing any sovereign nation in “their backyard” (that was America’s job!). The Monroe Doctrine became an instrumental tool for Washington to advance American style Democracy and dominate governments in South and Central America and the Caribbean which brings us to Cuba.
Cuba was one of the last colonial possessions under Spanish rule just 90 miles south of Florida. As Spain’s Imperial power was in decline, Washington had imperial ambitions to expand its influence on Cuba. Cuba had the potential to produce unlimited profits for U.S. business interests.
http://www.globalresearch.ca/cuba-pre-1959-the-rise-and-fall-of-a-u-s-backed-dictator-with-links-to-the-mob/5464738