Saudi Crown Prince Mohammed bin Salman (left) attends a ceremony with Abu Dhabi Crown Prince Mohammed bin Zayed Al Nahyan in Abu Dhabi, United Arab Emirates, in November. The Saudi crown prince was in the UAE for talks that were expected to focus on the war in Yemen and tensions with Iran.

Saudi Crown Prince Mohammed bin Salman (left) attends a ceremony with Abu Dhabi Crown Prince Mohammed bin Zayed Al Nahyan in Abu Dhabi, United Arab Emirates, in November. The Saudi crown prince was in the UAE for talks that were expected to focus on the war in Yemen and tensions with Iran.