治ち安あん出しゅつ動どう

noun

public security operation

Refers to a deployment or operation by authorities (e.g., police, Self-Defense Forces) to maintain public order and security.

• 大だい規き模ぼなデモに備そなえて、警けい察さつは治ち安あん出しゅつ動どうの準じゅん備びを整ととのえた。

  In preparation for the large-scale demonstration, the police readied a public security operation.