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.

CDSG Conferences, Tours and Events