After tensions flared between Washington and Tehran following the Iranian government’s brutal crackdown on protesters, Saudi Arabia, Qatar, and Oman launched a major effort to prevent U.S. President Donald Trump from attacking Iran, out of fear that such a move would trigger a “devastating reaction in the region,” a senior Saudi official told AFP. The Saudi official said the three Gulf countries carried out intense diplomatic efforts to persuade the U.S. president to give Iran’s leaders an opportunity to show remorse, adding that communication channels remain open to help build mutual trust. How do the Persian Gulf countries view their “neighbor plagued by instability,” and what are their concerns about its current situation? Gulf diplomacy in a critical moment. The possibility of U.S. military action against Iran has been a key issue causing serious concern in Arab diplomatic efforts, especially among countries of the Gulf region. This concern stems from their proximity to...