Iran: Resolution 2231 has expired and the last meeting of the UN Security Council has no legal basis Iran's representative at the UN Security Council meeting: holding this meeting has no legal and valid basis and we reject it completely. Resolution 2231 expired on October 18, 2025, and from that date, this issue has no legal effect. The Security Council has been passive and silent in the face of military aggression and anti-diplomatic measures against Iran's nuclear facilities. Yes, it's slow Sorosh+ | Telegram Instagram.