Iraqi Kurds gather near the Arbil Citadel in the center of the autonomous Kurdish region of northern Iraq, on the eve of the birth of the Prophet Mohammed, known in Arabic as "al-Mawlid al-Nabawi", on December 23, 2015. AFP PHOTO / SAFIN HAMED / AFP / SAFIN HAMED (Photo credit should read SAFIN HAMED/AFP/Getty Images)
