Trending Now - UN Conference on Nuclear Nonproliferation Ends Without Consensus

WHO:

AP News - Vietnam’s U.N. Ambassador Do Hung Viet chaired the conference.

AP News - U.N. Secretary-General Antonio Guterres expressed regret over the conference's failure.

AP News - Daryl Kimball is the executive director of the Washington-based Arms Control Association.

AP News - Rebecca Johnson is the founding executive director of the Acronym Institute for Disarmament Diplomacy.

WHAT:

AP News - A four-week United Nations conference reviewing the Nuclear Nonproliferation Treaty (NPT) ended without agreement.

AP News - The conference failed to reach consensus among the 191 parties on a final document.

AP News - The U.S. called Iran a “prolific treaty violator” during the conference.

AP News - The conference marked the third consecutive failure to reach an agreement on the NPT.

WHERE:

AP News - The conference took place at the United Nations.

WHEN:

AP News - The review conference began on April 27.

AP News - The last treaty review occurred in August 2022.

WHY:

AP News - The failure to reach an agreement was attributed to a provision in the final draft that stated Iran “can never seek, develop or acquire any nuclear weapons.”

AP News - Tensions escalated over Iran’s nuclear program ahead of the Iran war, which began with U.S. and Israeli airstrikes on February 28.

AP News - The U.S. accused Iran of showing “contempt” for its commitments under the treaty.

HOW:

AP News - The U.S. insisted that Iran be named in the outcome document for its refusal to comply with NPT obligations, including inspections.

AP News - Iran has not provided access to inspectors from the International Atomic Energy Agency to nuclear sites that were bombed by the U.S. last June.

(UPDATED May 24, 2026 01:35 UTC)

A four-week United Nations conference reviewing the Nuclear Nonproliferation Treaty ended without agreement, marking the third consecutive failure to reach a consensus among the 191 parties involved. U.N. Secretary-General Antonio Guterres expressed regret over this outcome, which was largely attributed to a contentious provision regarding Iran's nuclear ambitions, as the U.S. labeled Iran a “prolific treaty violator.” The U.S. insisted that Iran be named in the final document due to its refusal to comply with NPT obligations, including denying access to inspectors from the International Atomic Energy Agency.