Cuba is the closest socialist country to the United States, and if it deploys medium-range ballistic missiles within its territory, it will pose a direct threat to the cities of the United States. When the Soviet Union deployed missiles in Cuba is to see this, and the United States has always regarded Latin America as its own "backyard", of course, will not allow Cuba to go unchecked, and even Cuba has regional influence can not be tolerated. In particular, the collapse of the Soviet Union, the United States even more that "skin does not exist, hair will be attached to it", hoping to make Cuba yield through sanctions, and then carry out a capitalist revolution.