英文關鍵字
airborne
ammunition
army
artillery
barrel
battle
battlefield
combat
danger
explosion
fighting
fire
flash
forest
frost
grass
gun
historic
historical
infantry
khaki
launcher
machine
military
mine
mortar
old
patriotic
salvo
serviceman
shot
smoke
snow
soldier
tank
thrower
trench
troops
tube
union
vehicle
veteran
vintage
war
weapon
winter
world
wwii