to decide to do something: to do something on purpose / to perform a maneuver, to carry out a tactical action / to decide on an opinion: to believe in an opinion firmly

to enlist in a military

enlistment in a military

(military) armed forces such as the army, the navy, or the air force

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(idiomatic) to make up one’s mind, to decide

Alternative spelling of 軍隊蟻

an army ant