Prince Moulay Rachid of Morocco, the King's brother, and Djibouti President Ismail Omar Guelleh arrived in Saudi Arabia on Friday ahead of the Arab League summit. Arab leaders, joined by Syrian President Bashar Assad for the first time in more than a decade, are holding the annual summit Friday with a focus on Sudan and other conflicts — and a surprise visit by Ukraine's president, Volodymyr Zelenskyy.