航空自衛隊

air self-defense force

boat / ship / craft / to navigate / to sail / to fly

aviation

empty / air / sky / in vain

to empty / vacant / unoccupied / space / leisure / free time

self / oneself / from / since / naturally / surely

to defend oneself / self-defense

to guard / to protect / to defend / abbr. for 衛生|卫生, hygiene / health / abbr. for 衛生間|卫生间, toilet / surname Wei / vassal state during the Zhou Dynasty (1066-221 BC), located in present day Henan and Hebei Provinces

self-defense force / the Japanese armed forces

guard (i.e. group of soldiers)

squadron / team / group / CL:個|个[ge4]