Vauban fortification
Star-shaped military fortification developed by the Frenchman Vauban in the 17th century.
barrack buildings 
Buildings used as living and instructional quarters for the garrison.
battlement 
Wall allowing defenders of the fortification to fire from a protected position.
embrasure 
Aperture in the battlement to allow for gun and cannon fire.
bastion 
A fortified projection consisting of two faces and two flanks, designed to reinforce a stronghold.
face 
Side of the bastion exposed to the enemy.
flank 
Part of the bastion between the curtain wall and the face, making it possible to fire parallel to the face of the neighboring bastion.
tenaille 
Fortification made up of two faces forming an angle opening inward, placed in front of the curtain wall and designed to shield it.
demilune 
Freestanding triangular fortification placed in front of a curtain wall and having a firing surface.
caponiere 
Path dug through the moat to provide access to freestanding fortifications such as the demilune.
postern 
Secret door built into a rampart.
terreplein 
Horizontal surface of a bastion designed to accommodate the artillery.
counterguard 
Freestanding fortification that protected the faces of the bastion and allowed the artillery to dominate the glacis.
glacis 
Sloping terrain surrounding a fortification to conceal the covered ways and the counterscarp.
covered way 
Walkway built along the counterscarp and protected by the height of the glacis.
rampart 
Thick wall forming the enclosure of the fortified place.
moat 
Trench surrounding defensive works.
guardhouse 
Structure serving as living quarters for the guards.
salient angle 
Projecting angle of the fortification, protecting the covered way.
ground sill 
Fortification of earth or masonry perpendicular to the covered way and specially designed to protect the defenders against ricochets.
counterscarp 
Outer wall of a moat, opposite the fortified place.
bartizan 
A sentry box projecting from a wall used to survey the surrounding area.
scarp 
Inner wall of a moat, closest to the fortified place.
retrenchment 
Raised fortification of a bastion allowing the artillery to dominate the terrain.
parade ground 
Area serving for the assembly of troops.
parapet walk 
Passageway along a wall, making it possible to shoot and perform surveillance.