Coast Defense Study Group

ABOUT 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

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ABOUT 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

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