Welcome
The CDSG is a non-profit corporation formed to promote the study of coast defenses and fortifications, primarily those of the United States of America;
their history, architecture, technology, and strategic and tactical employment.
The primary goals of the CDSG are:
A yearly Membership in the CDSG includes four issues of the organization’s two publications: the Coast Defense Journal and the CDSG Newsletter.
Membership also allows you to attend CDSG Annual Conferences and Special Tours.
Events
CDSG Conferences, Tours and Events
2025 Annual Conference Boston, MA
April 23 – 27
2026 Annual Conference Oahu HI or San Francisco, CA
2027 Annual Conference