Warlike sites searched

• trove.scot
• radarpages.co.uk
• radomes.org
• pinkroutes.com
• undergroundkent.co.uk
• castlestudiesgroup.org.uk
• heritagegateway.org.uk
• castles.nl
• historiceuropeancastles.com
• iwm.org.uk
• britainfromabove.org.uk
• ancientmonuments.uk
• underfoot.info
• wikimaginot.eu
• northamericanforts.com
• palmerstonfortssociety.org.uk
• cdsg.org
• starforts.com
• nps.gov
• warlike.info
• ordnancesociety.org.uk
• threedecks.org
• dreadnoughtproject.org
• naval-encyclopedia.com
• castlefacts.info
• coehoorn.nl
• tracesofwar.com
• castles.today
• bulletpicker.com
• www.pdavis.nl
• www.icofort.org
• www.nortfort.ru
• www.internationalfortresscouncil.org
• www.simonstevin.org
• www.festungsforschung.de
• www.association-vauban.fr
• www.ffgl.lu
• www.fortified-places.com
• www.abandonedspaces.com
• www.pillbox-study-group.org.uk