陸海空三軍

army, navy, air force

surname Lu

six (banker's anti-fraud numeral)

shore / land / continent

(bound form) land (as opposed to the sea)

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

empty / air / sky / in vain

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

three / 3

(in former times) upper, middle and lower army / army of right, center and left / (in modern times) the three armed services: Army, Navy and Air Force

(bound form) army / military