AbatisW
Abatis
AlcazabaW
Alcazaba
Amba (landform)W
Amba (landform)
BarricadeW
Barricade
Blast shelterW
Blast shelter
BlockhouseW
Blockhouse
Boma (enclosure)W
Boma (enclosure)
Border barrierW
Border barrier
Border outpostW
Border outpost
Breastwork (fortification)W
Breastwork (fortification)
Bremer wallW
Bremer wall
BulverketW
Bulverket
Circular rampartW
Circular rampart
CitadelW
Citadel
Compound (fortification)W
Compound (fortification)
CrannogW
Crannog
Defensive fighting positionW
Defensive fighting position
DunW
Dun
Fire support baseW
Fire support base
Flak towerW
Flak tower
Garrison (architecture)W
Garrison (architecture)
Gord (archaeology)W
Gord (archaeology)
Gulyay-gorodW
Gulyay-gorod
Hardened aircraft shelterW
Hardened aircraft shelter
Himalayan TowersW
Himalayan Towers
Kotta maraW
Kotta mara
KraalW
Kraal
KsarW
Ksar
Ostrog (fortress)W
Ostrog (fortress)
Pillbox (military)W
Pillbox (military)
Polygonal fortW
Polygonal fort
Promontory fortW
Promontory fort
Qalat (fortress)W
Qalat (fortress)
Quadrangular castleW
Quadrangular castle
Revetment (aircraft)W
Revetment (aircraft)
RicettoW
Ricetto
RingfortW
Ringfort
SandbagW
Sandbag
Sangar (fortification)W
Sangar (fortification)
SchanzeW
Schanze
SchwedenschanzeW
Schwedenschanze
Sconce (fortification)W
Sconce (fortification)
Separation barrierW
Separation barrier
Shell scrapeW
Shell scrape
Station (frontier defensive structure)W
Station (frontier defensive structure)
StrongpointW
Strongpoint
ViereckschanzeW
Viereckschanze
Wagon fortW
Wagon fort
Wall and towerW
Wall and tower