戦せん線せん離り脱だつ

noun, noun or participle which takes 'suru'

withdrawal from the front line; leaving the battle; retiring from the game

Used in military contexts for physically leaving the front line, and metaphorically for stepping back from a competitive situation or conflict. Often implies a strategic or voluntary withdrawal rather than a chaotic retreat.

• 部ぶ隊たいは命めい令れいを受うけて戦せん線せん離り脱だつした。

  The unit withdrew from the front line upon receiving orders.

• 彼かれは激はげしい競きょう争そうから戦せん線せん離り脱だつを決きめた。

  He decided to retire from the fierce competition.