Saudi King Salman bin Abdulaziz attends the second day of the 136th Gulf Cooperation Council (GCC) summit held in Riyadh, on December 10, 2015 as kings and emirs from six Gulf states began two days of talks, at the same time as unprecedented discussions by the Syrian opposition at a luxury hotel in another part of the city. Salman called for political solutions to the wars in Syria and Yemen, while condemning "terrorism," at the opening of the annual Gulf summit. AFP PHOTO / FAYEZ NURELDINE / AFP / FAYEZ NURELDINE (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)