Unprecedented UN Security Council Deadlock Over Iran Sanctions Paralyzes Subsidiary Leadership

Elected members of the UN Security Council and countries set to join it next year expressed serious concern over an eight-month impasse regarding the leadership of its subsidiary bodies, driven primarily by a dispute over the Iran sanctions committee. In a joint statement, the 10 elected members and five incoming countries noted that the council has failed to agree on leaders and deputy leaders for its committees for 2026.

“This is the longest delay in the council's history and an unprecedented situation that undermines the effectiveness, credibility and institutional integrity of the Security Council,” the group stated. Shamala Kandiah Thompson, executive director of Security Council Report, explained to council members that the deadlock stems from a dispute over leadership of the Iran sanctions committee alongside broader disagreements regarding the reimposition of UN sanctions on Tehran through the snapback mechanism. The snapback mechanism originated from the 2015 nuclear agreement between Iran and world powers, which tied the removal of sanctions against Tehran to concessions concerning its nuclear programme.

The impasse has disrupted operations, delayed decisions, and hindered engagement with the wider UN membership. To maintain urgent business, successive monthly council presidents have acted in caretaker roles since January. While the statement did not single out any specific member state blocking consensus, it urged those withholding agreement to demonstrate greater flexibility and political will.

Russia’s UN envoy Vasily Nebenzya criticized western council members, accusing them of refusing to reconsider sanctions regimes that Moscow believes no longer reflect current conditions in Iran. Mr. Nebenzya further claimed that sanctions targeting North Korea, Sudan, South Sudan, and the Central African Republic have become preferred tools for foreign policy pressure despite their diminishing relevance.

Daniel Forti, head of UN affairs at the International Crisis Group, told The National that Russia, with implicit backing from China, is retaliating against the rest of the Security Council for last year's decision to reimpose sanctions on Iran. He noted that they have shown no interest in compromises proposed by elected members, suggesting the deadlock may continue indefinitely since council-wide consensus is required for appointments.

“By convening today's press conference, the elected members used one of the few levers they have left to raise the pressure on Russia and China,” Mr. Forti said. “No amount of quiet diplomacy seemed to work, so they are hoping that public diplomacy can start to shift the P2's calculations.”

The Security Council's subsidiary bodies—including sanctions committees and working groups—monitor decisions, manage asset freezes, travel bans, and arms embargoes, and review expert panel reports. Typically led by the 10 elected members through negotiations among all 15 council members, these bodies require the approval of the five permanent members (Britain, China, France, Russia, and the US) to assign leaders. Despite putting forward balanced proposals, the elected members emphasized that the ongoing impasse highlights an absence of compromise rather than a shortage of practical solutions.