機器
underwater
aggression
antenna
armed forces
armored
army
army uniform
aspirations
attack craft
battle
cold war
communications tower
conflict
defending
fighter craft
fighterbombers
gun
gun weapon
helicopter
humvee
marines
metal
militar uniform
military
military invasion
military target
missile
mode of transport
nuclear power station
pickup truck
piloting
propeller
protection
russia
submarine
surveillance
target acquisition
truck
uniform
us military
war
war helicopter
war uniform
weapon
world war i
world war ii