Europe Triggers UN Snapback Sanctions on Iran for the First Time in a Decade

The UK, France, and Germany trigger the UN Security Council snapback mechanism, reinstating comprehensive UN sanctions on Iran for the first time since their partial lifting under the JCPOA in 2016.

On August 28, 2025, the United Kingdom, France, and Germany triggered the JCPOA's dispute resolution mechanism — known as the snapback — to reinstate United Nations Security Council sanctions on Iran. The snapback was designed so that no single Security Council member could veto its activation. The move restored sweeping UN arms and nuclear sanctions that had been lifted in 2016 under the JCPOA, including restrictions on Iran's ballistic missile program. Iran condemned the action as unlawful and politically motivated. Russia and China objected but could not block the mechanism. The reimposition of UN sanctions marked a new diplomatic isolation for Iran and reflected European governments' conclusion that the Islamic Republic had fundamentally broken its nuclear commitments.