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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:

Promotion of educational study, technical research, and accurate documentation of seacoast defense history

Preservation of seacoast defense sites, equipment, and records for current and future generations.

Assisting organizations with the preservation and interpretation of seacoast defense historical sites.

Contributing towards charitable activities which promote the goals of the CDSG

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.

Contact Us

Events

CDSG Conferences, Tours and Events

2024 Annual Conference Key West Florida

May 2024

2025 Annual Conference Boston, MA

2026 Annual Conference Oahu, Hawaii

Click here to see Online CDSG/IFC Event Calendar

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Featured Links

First Virtual CDSG Annual Meeting Presentations on YouTube
FSG presentations on American coast defenses
International Fortress Council
International Fortress Council Latest Newsletter
Fortress Study Group
3rd IFC Newsletter 2023
The History Guy’s YouTube talk on the Endicott Program
North American Forts – American Forts Network
Council on America’s Military Past
Coalition for the Preservation of Fort Wool Virginia
National Archives