The UN embargo on Iran’s missile and drone activities expired on October 18, which is seen by some as a significant development. The US had multiple options to retain the sanctions, including invoking UN Security Council Resolution 2231, which endorsed the JCPOA, or requesting the EU3 (UK, France, and Germany) to send a letter to the president of the UN Security Council. However, the Biden administration has faced criticism for not taking more significant steps to maintain the sanctions. The European Union has indicated that it is working to uphold the designations that the UN initially imposed.