機器
adult
aim
army
automatic
background
battle
camouflage
camp
conflict
danger
day
enemy
fight
front
gun
helmet
historical
looking
man
mercenary
military
mountains
operation
operator
outdoor
people
protect
rebel
reconnaissance
reconstruction
rifle
rookie
scope
scout
security
shooter
sight
soldier
subdivision
tactical
tactics
target
teaching
trees
trench
uniform
war
weapon
woods