機器
ancient
antique
arm
army
artillery
attack
ballista
ballistic
battle
castle
catapult
conflict
danger
engine
equipment
force
fort
gun
historic
historical
history
icon
knight
line
machinery
medieval
military
old
outline
roman
shot
siege
sling
soldier
steel
stone
stronghold
technology
thin
throw
trebuchet
war
warfare
warrior
weapon
wheel
wood
wooden