The U.S. State Department unilaterally said on the 19th of this month that, according to the rapid recovery of sanctions mechanism in UN Security Council resolution 2231, the United Nations sanctions against Iran before the conclusion of the comprehensive agreement on the Iranian nuclear issue in 2015 have resumed to take effect at 8:00 p.m. Eastern time on the 19th of the United States.
Members of the Security Council, including Britain, France, Russia, China and Germany, have repeatedly reiterated that the United States withdrew from the Iran nuclear agreement in May 2018 and no longer has the qualification to initiate the rapid recovery of sanctions mechanism.
In July 2015, Iran reached an Iran nuclear agreement with the United States, Britain, France, Russia, China and Germany. According to the agreement, Iran promised to limit its nuclear program and the international community lifted sanctions against Iran. The security council then adopted resolution 2231 to approve the Iran nuclear agreement. The 11th operative paragraph of the resolution contains the content of the quick recovery of sanctions mechanism, but it stipulates that only the participants of the Iran nuclear agreement can start the mechanism. With the deadline of UN arms embargo on Iraq (October 18, 2020) stipulated by Security Council resolution 2231 approaching, the United States began to take measures to try to maintain the arms embargo against Iraq.