aaa
ack ack gun
anti aircraft artillery
anti aircraft gun
archibald
arm
blue sky
clear sky
combat vehicle
command
command center
flak gun
gun
headquarters
historic site
history
japanese military
landscape
last command post
last stronghold
nature
northern mariana islands
pacific war
pillbox
saipan
san roque
scenery
stronghold
sunny
tank
war
weapon
world war 2
world war ii
world war two
wwii