狼煙のろしを上あげる

expression, ichidan verb

light a signal fire; send a smoke signal

Literal meaning: to raise a smoke signal or beacon fire, historically used for communication. Still used in historical or metaphorical contexts.

• 戦せん国ごく時じ代だい、城しろから狼煙のろしを上あげて援えん軍ぐんを呼よんだ。

  In the Warring States period, they lit a signal fire from the castle to call for reinforcements.

expression, ichidan verb

start something; initiate an action; kick off a campaign

Idiomatic use: to be the first to take action, often in a public or noticeable way, like starting a movement or campaign.

• 彼かの女じょのスピーチが改かい革かくの狼煙のろしを上あげた。

  Her speech started the reform movement.

• 新しん製せい品ひんの発はつ売ばいが価か格かく競きょう争そうの狼煙のろしを上あげた。

  The launch of the new product kicked off a price war.