However, the Cuban government began to control most of life in Cuba under the communist system. Disagreeing with the Cuban government and Fidel Castro in public was not allowed. Some Cubans did not like this and tried to leave Cuba. Most Cubans who left went to the United States. Some Cubans who did not like the government and stayed were put in jail. Many groups from around the world protested against Cuba because of this, and demanded that Fidel Castro give up power.