Kurdish force, also known as Peshmerga, stand guard at a Kurdish military base near Iraq's northern city of Kirkuk, May 7, 2017. Five suicide bombers affiliated with the extremist Islamic State (IS) group and two Kurdish security members were killed on Sunday in an attack on a Kurdish military base near Iraq's northern city of Kirkuk, a local security source told Xinhua. (Xinhua/Ako Zangana)
