機器
aggression
armament
armed
armor
armored
army
artillery
barrel
battle
camouflage
cannon
closeup
combat
conflict
danger
defense
destruction
equipment
fight
fort
front
gun
heavy
historical
history
iron
metal
military
muzzle
old
outdoor
power
retro
russia
russian
rusty
soviet
steel
technology
travel
vintage
war
weapon