Saudi King Salman bin Abdulaziz (L) welcomes Egyptian President Abdel Fattah al-Sisi at Riyadh international airport on November 10, 2015, as Arab leaders and top officials from South America converged on Saudi Arabia for a summit aiming to strengthen ties between the geographically distant but economically powerful regions. AFP PHOTO / FAYEZ NURELDINE        (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)