Security Council hears final briefings on JCPOA implementation as Iran–Israel strikes heighten urgency

At a June 2025 meeting of the United Nations Security Council, delegates heard the final round of briefings on implementation of Security Council Resolution 2231 and the 2015 Joint Comprehensive Plan of Action, with members warning that recent strikes on nuclear sites and rising enriched-uranium stocks have increased the urgency of a negotiated solution.

Under-Secretary-General for Political and Peacebuilding Affairs Rosemary DiCarlo told the council that “with less than 4 months left until the termination of its provisions, the objectives of resolution 22 31 and those of the JCPOA have yet to be fully realized. This is regrettable.” She cited the International Atomic Energy Agency (IAEA) and reported casualties from recent hostilities, and said the Secretariat “will continue to support the implementation of 2231 until the termination date of 18 October.”

The council heard competing narratives on the causes of the current impasse and on responsibility for recent attacks. Several delegations called for renewed diplomacy and full IAEA access; others defended recent strikes as necessary to reduce an imminent threat.

The nut graf: The body of statements and briefings centered on three linked facts: the IAEA has reported that it can no longer verify aspects of Iran’s nuclear program after more than four years of restricted access; member states reported a significant growth in Iran’s enriched-uranium stocks and enrichment levels (including material enriched to 60 percent); and military…