Change is inevitable in Cuba. Both Fidel Castro and his brother Raul are aging. Their passing will trigger either a succession or a transition. Eventually Cuba will change. With that change, the security requirements of Cuba will change as well. This monograph provides an analysis of security requirements that the new Cuba will face and makes proposals on what missions and structure the Cuban security forces might have after a transition. The overall long-range US goal is a stable, democratic Cuba which is integrated into the global market economy. The U.S. Government Commission for Assistance to a Free Cuba says that if a Cuban government asks for assistance, the United States could be made available "in preparing the Cuban military forces to adjust to an appropriate role in a democracy." This monograph proposes a way ahead in preparing Cuban forces for the future.