A member of the Saudi border guards patrols the fence on Saudi Arabia's northern border with Iraq, near Arar City on February 23, 2015. Inaugurated last September, the double-fence system and its complementary high-tech surveillance tools have become a front line for the kingdom trying to protect itself from Islamic State extremists who have seized parts of Iraq and Syria. AFP PHOTO / FAYEZ NURELDINE (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)
