anti
antitank
anty
army
barrier
battlefield
big
block
border
built
camps
concrete
day
death
defence
defences
defend
defense
dragons
eifel
fence
field
forest
fortress
german
grass
historic
iron
military
monument
murder
nature
position
road
second
secure
shape
steel
stone
summer
sunny
tank
teeth
terrorism
texture
trap
traps
war
westwall
world