military school

(US) A secondary school (or middle school) that prepares its students for joining the military.

Japanese Meaning

軍隊に参加するための準備を目的とした中等教育機関、すなわち中学校または高校レベルの学校

She enrolled in a military school to gain discipline and leadership experience before college.

彼女は大学に入る前に規律とリーダーシップの経験を積むために軍事学校に入学した。

Sense（1）

(US) A secondary school (or middle school) that prepares its students for joining the military.

military schools

（ plural ）