The US embargo and constant imperialist aggression for over 55 years against Cuba have failed in the aim of destabilizing the Cuban government. Instead, the Cuban people have shown remarkable courage and steadfastness in resisting all of the maneuvers of American imperialism and in defending the numerous gains of Cuban revolution—gains ranging from Cuba's often praised medical system, to the literacy campaigns of the revolution's early days, and, of course, the planned economy that made them possible.