Kurdistan Workers' Party (PKK) fighters arrive in the northern Iraqi city of Dohuk on May 14, 2013, after leaving Turkey as part of a peace drive with Ankara. The PKK has fought a 29-year nationalist campaign against Ankara in which some 45,000 people have died, but is now withdrawing its fighters from Turkey as part of a push for peace with the Turkish authorities. AFP PHOTO/SAFIN HAMED (Photo credit should read SAFIN HAMED/AFP/Getty Images)