In Vienna, Austria, the United States and three European partners (France, the United Kingdom, and Germany), joined by Russia and China, have been negotiating with Iran over the past year to restore full U.S. and Iranian compliance with the 2015 multilateral Iran nuclear agreement| The Soufan Center
Last year began with broad optimism for the course of U.S. relations with Iran as multilateral talks to restore full U.S. and Iranian adherence to the 2015 Iran nuclear deal, known as the Joint Comprehensive Plan of Action (JCPOA), appeared to make progress| The Soufan Center
On March 10, high-ranking Iranian and Saudi national security officials signed an agreement in Beijing to restore full diplomatic relations. They will return their respective ambassadors within two months, as well as resume abiding by long-dormant but preexisting agreements on security| The Soufan Center
The Sultanate of Oman, under the late Sultan Qaboos bin Said Al Said and led since early 2020 by Sultan Haythim bin Tariq Al Said, has historically sought to engage a wide range of leaders and factions to promote conflict resolution| The Soufan Center