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May 23 - If you already have a website login go to 'My Account' to check you membership status and update your details, for example if your credit card has expired. 

If you do not have a website login or have any other questions please contact [email protected]

Membership of the FSG is open to every individual or institution with an interest in the study, protection and preservation of all aspects of fortifications and their armaments.  This starts with the introduction of artillery in the 1500’s through to the present day. Although based in the UK the interests of FSG are worldwide.

Members will receive the one Fort and three Casemates published in the year following joining.  Full Members receive printed copies of the publications, and the higher costs for memberships outside the UK simply reflect higher postage costs.  Digital and Student memberships receive only digital copies of the publications but otherwise enjoy all of the benefits of full membership.  Associate Membership is intended for the spouses, partners or children of members; they receive no publications but they may attend Study Tours and other FSG activities with the same rights as a Full Member.

Click here to see members' benefits in more detail.

Details of FSG Membership Plans are given below

Institutions, Libraries or others requiring an invoice or other fortification societies wishing to offer a reciprocal exchange of publications should contact the Secretary.

Details of the Royal Mail Postal Zones can be found here.

Member Benefits Learn about the publications and events for members
The Fortress Study Group CIO is a registered charity, No 1194017.
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