ISTANBUL,TURKEY - APRIL 14: Brunei's sultan Hassanal Bolkiah attends the 13th Organization of Islamic Cooperation (OIC) Summit at Istanbul Congress Center (ICC), in Istanbul, Turkey on April 14, 2016. Istanbul hosts the two-day 13th OIC Summit on the April 14-15, 2016 with the attendance by prime ministers and presidents from over 30 countries. (Photo by Islam Yakut/Anadolu Agency/Getty Images)