Despite its limited resources, Cuba has developed an integrated mental health system that emphasizes prevention and community care. It consists of three distinct organizations: the Committee for the Defense of the Revolution, one of many mass community organizations that strive to protect the revolution; the policlinics, which provide comprehensive health services to geographic areas containing 25,000 to 40,000 people; and the psychiatric hospitals. All three use treatment approaches that are based on a social systems model and that emphasize solving current problems and disturbances. Behavioral and milder psychiatric problems are treated by policlinic psychologists, in the community whenever feasible, and major psychiatric disorders are treated by psychiatrists at the hospitals. Services for children and adolescents, research, and staff training in Cuba are also discussed.