NPT Review Conference Ends in Deadlock Over Iran Dispute

The 11th Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) concluded on May 22, 2026, without a consensus outcome. Held over four weeks at the United Nations headquarters in New York, the summit's collapse marks the third consecutive failure of the review process and the first time in sixteen years that treaty commitments have not been reaffirmed. The deadlock was driven primarily by a dispute between the Government of the United States and the Government of Iran. The U.S. insisted on a clause stating that Iran can never seek, develop, or acquire nuclear weapons, while Iran demanded the language be removed and accused the U.S. and Israel of unlawful attacks on its nuclear facilities in 2025 and 2026.

Conference President Do Hung Viet formally announced that the meeting was not in a position to achieve agreement on its substantive work, noting that the final draft had been repeatedly watered down. The Government of Iran blamed the failure on American obstructionism, while the U.S. attributed the stalemate to the refusal of some member states to address Iran's noncompliance with International Atomic Energy Agency safeguards. The Government of Russia also criticized the U.S. hard line as a major obstacle.

UN Secretary-General António Guterres condemned the stalemate as a missed opportunity, warning that the current international environment of deep tensions requires urgent action. Other officials, including disarmament chief Izumi Nakamitsu, noted that non-proliferation and disarmament are two sides of the same coin. While the summit failed to adopt a final declaration, participants adopted technical arrangements for the next review cycle, scheduled for 2031.