Individual Annual Membership is suited to individuals with an active interest in the study, protection and preservation of all aspects of fortifications and their armaments of all periods. The Member receives three issues of CASEMATE and one issue of FORT.
The Associate Annual Membership is suited to the Partners of existing Individual Members. The Associate Member receives no publications, but can attend Study Tours and other FSG activities with the same rights as an Full Member.
The Fortress Study Group was formed in 1975 at Pembroke College, Oxford to provide an opportunity for those interested in fortifications and military architecture to meet, get to know one another and publish their work.