This book, first published in 1965, is a scrupulously fair study of the origins and evolution of Castroism and an assessment of the impact of the Cuban revolution and of Castro's subsequent domestic and foreign policies on the rest of Latin America. In this analysis it takes into account the great differences – social, economic and cultural – between the countries of the area and looks at the foreign policies of Latin American countries as well as the United States and the role of international Communism.