機器
aggression
armed
armor
armored
armour
armoured
army
artillery
background
battle
camouflage
caterpillar
chain
conflict
construction
crawler
defence
defense
destruction
detail
equipment
fight
force
gear
green
gun
heavy
iron
machinery
mechanical
metal
military
modern
power
protection
russian
steel
tank
technology
track
tracked
transport
transportation
tread
vehicle
war
warfare
weapon
wheel