当とう事じ国こく

noun

countries concerned; parties involved

Used in diplomatic, legal, or international contexts to refer to the nations directly involved in a matter.

• 紛ふん争そうの解かい決けつには、当とう事じ国こく間かんの対たい話わが不ふ可か欠けつだ。

  Dialogue between the countries concerned is essential for resolving the dispute.

• 条じょう約やくの改かい正せいには、すべての当とう事じ国こくの同どう意いが必ひつ要ようである。

  Amending the treaty requires the consent of all parties involved.