BASTION

UF Beak Bastion
Boccarum
Cavalier
Demi Bastion
Horn Bastion
Orillon
Pointed Bastion
Tour En Bec
SN A flanking tower, or projection from the main walls of a defensive work from which a garrison can defend the ground in front or on the flank.
CL DEFENCE
BT FORTIFICATION
NT BASTION OUTWORK
RT ANGLE TOWER
CURTAIN WALL
FLANKER
FLANKING TOWER
FORT
SCONCE
TOWN DEFENCES