Channel Islands Occupation Society
Seeks to preserve and record all aspects of the second world war German occupation of the Channel Islands.
Coast Defense Study Group
US based group focusing on coastal artillery and fortifications.
Seeks to bring together those involved in fortified heritage sites to look at methods of conservation through redevelopment.
Friends of the Lines of Torres Vedras
This group is dedicated to support the preservation of the Lines of Torres Vedras.
International Fortress Council
This is an International Group which brings together other bodies striving to preserve our Military Heritage. The FSG has representation on this body.
Deutsche Gesellschaft für Festungsforschung
A fortification group based in Germany. Web site is in German.
This fortification is now maintained by a group of volunteers who run a museum at the location.
This battery in Hartlepool is maintained and run as a museum by a charitable trust.
Palmerston Forts Society
This is a group who primarily concentrate on the Victorian Fortifications and artillery throughout the World, but particularly within Hampshire.
Association Saint Maurice d'Etudes Militaires (ASMEN)
A French Language body based in Switzerland.
Stichting Menno van Coehoorn
A Dutch language Group that has an interest in fortifications throughout the world.
A Group who are interested in man-made and man-used underground places — from mines to railway tunnels, military defences to nuclear bunkers
Western Heights Preservation Society
This Group is attempting to raise public awareness of the Western Heights defences in the nineteenth and twentieth centuries.
A French language Group which concentrates on the numerous Vauban works.
This fortification is run by a group of volunteers working with Lewes District Council
Blyth Battery operates as a Military and Local Heritage museum. It boasts unique World War One and Two Coastal Defence buildings.
Littlehampton Fort Restoration Project
Started in 2011 this project is attempting to restore the first of the Palmerston Forts built.
This is a volunteer association who have worked hard to clear the undergrowth and trees from Fort De Frouard (Fort Drouot). Their primary interest is the Séré de Rivières fortifications.
The Society was formed in June 1986 to promote, encourage and co-ordinate the study of all aspects of the history of ordnance and artillery. It is today, an international society with members from more than 20 countries and all walks of life.