Coastal Defense Study Group

The Coast Defense Study Group (CDSG) is a non-profit corporation dedicated to the study of seacoast fortifications.

CDSG’s purpose is to promote education about and preservation of seacoast defenses, primarily those of the United States. The study of coast defenses and fortifications include their history, architecture, technology, strategic and tactical employment and evolution.  Our key missions include the preservation of coast defense sites, equipment, and records, and conducting charitable activities that promote this preservation.

The primary goals of the CDSG are the following:

• Educational study of coast defenses.
• Technical research and documentation of coast defenses.
• Preservation of coast defense sites, equipment, and records for current and future generations.
• Accurate coast defense site interpretations.
• Assistance to groups interested in the preservation and interpretation of coast defense sites.
• Charitable activities which promote the goals of the CDSG.