Russia and China Veto US Resolution to Extend UN Monitoring of Iran Sanctions

Washington, D.C. (Terror Monitor) — Russia and China on Thursday vetoed a U.S.-drafted United Nations Security Council resolution that sought to extend the mandate of an expert panel responsible for monitoring the implementation of UN sanctions against Iran.

The resolution received 11 votes in favor, two against and two abstentions. Russia and China, both permanent members of the Security Council, voted against the measure, while Pakistan and Somalia abstained, preventing its adoption.

The U.S. proposal sought to extend the mandate of the Panel of Experts supporting the Iran sanctions committee for another year, allowing independent experts to continue investigating and reporting potential violations of UN sanctions against Tehran.

The vote highlighted a continuing dispute within the Security Council over the legal status of UN sanctions on Iran and the so-called “snapback” mechanism under the 2015 nuclear agreement, formally known as the Joint Comprehensive Plan of Action (JCPOA).

Russia's UN ambassador, Vasily Nebenzya, argued that the Security Council had completed its consideration of the Iranian nuclear issue and that the relevant provisions of Security Council Resolution 2231 had reached their scheduled end.

Moscow maintains that the sanctions regime and related monitoring arrangements no longer have a legal basis following the expiration of the relevant provisions of Resolution 2231 on October 18, 2025. Russia and China have rejected the Western interpretation that sanctions were restored through the snapback mechanism.

Western governments, however, maintain that sanctions were reinstated in 2025 after Britain, France and Germany invoked the snapback mechanism, arguing that Iran had failed to comply with its commitments under the 2015 nuclear agreement. The dispute has left the Security Council divided over the continued operation and monitoring of the sanctions regime.

The expert panel itself had not been fully operational because Security Council members failed to agree on its membership. The panel was intended to provide independent assessments of sanctions implementation and investigate suspected violations. The latest veto effectively ends the effort to extend its mandate.

The United States criticized the Russian and Chinese vetoes. U.S. Deputy Ambassador Jennifer Locetta said the expert panel would have provided independent reporting on alleged violations and prohibited cooperation involving Iran and its partners. She warned that without the panel, the Security Council would face a gap in independent monitoring of sanctions violations.

Britain and other Western members also criticized the vetoes, while maintaining that the underlying UN sanctions remain in force. Russia and China, meanwhile, have argued that the sanctions framework itself lacks a continuing legal basis.

Iran welcomed the rejection of the U.S. resolution. Iran's UN mission thanked Russia and China for their positions, saying the two countries had prevented what Tehran described as another attempt by the United States and its allies to use the Security Council for political purposes.

The dispute comes amid wider international tensions over Iran's nuclear program. The International Atomic Energy Agency (IAEA) remains the principal international body responsible for nuclear safeguards monitoring, although access and verification efforts concerning Iran have faced significant challenges.

Pakistan's abstention also reflected its stated preference for resolving the Iran nuclear dispute through diplomacy and negotiations. Pakistani Ambassador Asim Iftikhar Ahmad told the Security Council that diplomacy and dialogue should remain central to resolving outstanding issues related to Iran's nuclear program.