Histories of all important and historically significant overseas U.S. naval and Marine Corps bases and facilities are presented alphabetically in this work. Those bases within a geographic area that permits (or permitted) overflight rights, port visits, and the use of offshore anchorages and including Puerto Rico, the Virgin Islands, and Guam are included. Each entry discusses the form and function of the base or facility and gives something of its history and development. Bibliographies at the end of each entry provide sources for further research.