主しゅ戦せん線せん

noun

main battle line; primary front

Refers to the principal area of military engagement or the most active front in a conflict. Can also be used figuratively for the main arena of a struggle or debate.

• 連れん合ごう軍ぐんは主しゅ戦せん線せんを突とっ破ぱしようと試こころみた。

  The allied forces attempted to break through the main battle line.

• 選せん挙きょ戦せんの主しゅ戦せん線せんは経けい済ざい政せい策さくに移うつった。

  The primary front of the election campaign shifted to economic policy.