加か盟めい国こく

noun

member nation; member state; signatory

Refers to a country that has formally joined an international organization, treaty, or alliance.

• 日本にほんは国こく連れんの加か盟めい国こくです。

  Japan is a member state of the United Nations.

• 新あらたな加か盟めい国こくが条じょう約やくに署しょ名めいした。

  A new signatory nation signed the treaty.