Permanent five members clash in UN Security Council about Iran sanctions snapback

The five permanent members of the UN Security Council clashed on Thursday during a high-stakes session about the legal validity of international sanctions against Iran and the reimposition of UN sanctions under the 2015 nuclear accord's "snapback" provision.

The snapback clause, established under the 2015 Joint Comprehensive Plan of Action (JCPOA), was designed to automatically reinstate UN Chapter VII sanctions if Iran breached the deal, intentionally bypassing the veto power of permanent council members.

"The mechanism for reinstating previously adopted Security Council resolutions on Iran, a mechanism outlined in Resolution 2231, was not activated, and this for a whole host of legal and procedural reasons," said the Russian representative, demanding a procedural vote to block a scheduled briefing on the 1737 Sanctions Committee.

Moscow argued that UN Resolution 2231, which endorsed the nuclear deal, expired on October 18, 2025, and insisted that the non-proliferation agenda item was struck off the council's list of active matters that day. The Russian envoy maintained that the 1737 Committee ceased to exist in 2015 and that no legal grounds remain to discuss its "so-called work".

The Chinese representative supported the move, asserting that the council presidency lacks the mandate to draft or deliver a 90-day report. Warning against unilateral action, Beijing stressed, "A few members, in disregard of differences, insist on forcibly reimposing the Council sanctions against Iran and convening Council meetings under a removed agenda item."

The envoy warned that the steps deepen institutional division and impede a political settlement, expressing "grave concern" and “strong opposition" against the moves.

Western delegations firmly rejected the challenge, arguing that the sanctions regime had been legally revived following Iranian breaches.

Read: UNSC decides not to lift Iran sanctions

"The United Kingdom, with France and Germany, initiated the snapback mechanism in full accordance with Security Council Resolution 2231," said the British representative, explaining that European powers acted because of Iran's "significant non-performance" under the 2015 nuclear pact. London noted that the process concluded Sept. 28, 2025, leaving six Chapter VII resolutions in effect for nearly a year.

The French representative affirmed that council resolutions were restored alongside the committee's mandate to report every 90 days.

"Regardless of such politically driven matters, the facts are the facts. The 1737 Committee exists," said the US representative, accusing Russia and China of attempting to undermine council decisions to protect Tehran. The American diplomat noted that the International Atomic Energy Agency confirmed Iran remained non-compliant with its Comprehensive Safeguards Agreement.

Read More: IAEA reports Iran to UN Security Council

The council voted 11-2 in favour of adopting the provisional agenda, with two abstentions, defeating the Russian and Chinese bid to halt the meeting. Under UN Security Council rules, procedural votes cannot be blocked by a permanent member's veto and require a minimum of nine affirmative votes to pass.