Core Points - The recent UN Security Council vote has led to a deadlock between Iran and the International Atomic Energy Agency (IAEA) regarding nuclear cooperation [1] - Iran's Supreme National Security Council (SNSC) announced on October 20 that cooperation with the IAEA has effectively ceased due to the reinstatement of sanctions [1] - The crisis was triggered by the actions of the UK, France, and Germany, which initiated the process to restore sanctions based on Iran's non-compliance with the 2015 nuclear deal [1][2] Summary by Sections Iran's Response - Iran's SNSC emphasized that despite the Foreign Ministry's efforts to cooperate and propose solutions, European nations insisted on advancing sanctions, undermining months of cooperation with the IAEA [1] - The Iranian Foreign Minister met with the IAEA Director General on October 9, reaching a substantive agreement to resume inspections, which was later approved with a condition regarding hostile actions against Iran [1] Key Dates and Developments - A critical date is set for October 27, when if the Security Council does not reach a consensus to terminate sanctions, they will automatically be reinstated [2] - The security status of Iran's nuclear facilities remains a focal point for the international community, especially after attacks in June by Israel and the U.S. [2] International Concerns - Western nations are increasingly worried about Iran potentially developing nuclear weapons, a claim that Tehran has consistently denied [2] - The situation is evolving into a new phase of tension as the countdown to the reinstatement of sanctions progresses, drawing close attention from the international community [2]