ANTI TANK OBSTACLE

SN Obstacles, usually constructed of concrete and/or metal, designed to prevent the advance of enemy armoured divisions in the event of a successful invasion.
CL MILITARY DEFENCE AND FORTIFICATION
BT ANTI INVASION DEFENCE SITE
NT ANTI TANK BLOCK
ANTI TANK DITCH
ANTI TANK GIRDER
ANTI TANK HAIRPIN
ANTI TANK SCAFFOLDING
ANTI TANK VERTICAL RAIL
ANTI TANK WALL
RT DEFENDED LOCALITY
RAILBLOCK
ROADBLOCK
STOP LINE