aggression
antenna
armed
armor
army
battle
battleship
blue
boat
cannon
cruiser
defend
defense
destroyer
dock
docked
enforcement
fighter
force
forces
frigate
guard
gun
gunner
harbor
marine
military
nautical
naval
navy
pier
port
protection
radar
sea
ship
sky
steel
tower
transportation
turret
vessel
war
warfare
warship
water
weapon