Gathered on a boat in the Red Sea in the fall of 2015 were Mohammed bin Salman (known as “MBS”), deputy crown prince of Saudi Arabia, who would shortly become the heir apparent to the throne of the Saudi kingdom; MBZ himself, by 2015 the de facto ruler of the United Arab Emirates; Abdel Fattah el-Sisi, the president of Egypt; Prince Salman bin Hamad, the crown prince of Bahrain; and King Abdullah II of Jordan.