Overview

• Britain, France and Germany notified the Security Council on August 28 to trigger the JCPOA snapback, starting a 30‑day process that could restore pre‑2015 UN sanctions on Iran.
• The foreign ministers of Iran, China and Russia sent a joint letter to the UN secretary‑general and the Council’s president calling the E3 move legally invalid and urging that it be treated as null and void.
• Their letter argues the E3 misused Resolution 2231 procedures, says the U.S. withdrawal and European noncompliance bar use of the mechanism, cites IAEA‑verified Iranian compliance, and asks that the letter be circulated as an official UN document.
• Iran’s Parliament held a closed session to review options and leaders vowed a decisive, reciprocal response, with Speaker Mohammad‑Baqer Qalibaf saying a unified decision will be announced soon.
• Tehran also urged Council members in a separate August 28 letter to dismiss the E3 notification, and Russia and China publicly criticized the snapback bid.