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.

Contact the CDSG webmaster at: webmaster@cdsg.org