This is a revised and updated edition of Ronald Fernandez's acclaimed study of the Puerto Rico-United States relationship. Tracing that relationship from the early years of the 20th century through to the present, Fernandez provides a comprehensive analysis of political, economic, and military affairs as they relate to Puerto Rico. The new edition is completely up-to-date through 1995 and includes important new material based upon documents found in the Reagan presidential library, as well as newly declassified documents in the Eisenhower library.