an army, corps / (collectively) the armed forces, military / (military) forces

告発: (law) indictment, prosecution / 黒髪: black hair

初恋: first love

broaden / extend / expand / enlarge

exposing, unmasking

to expose, to unmask, to bare

challenge / contend for / make love to

qualified; suitable for some purpose; meeting standards or requirements

one who is qualified; that which is suitable

enemy (a hostile force or nation; a fighting member of such a force or nation)