An Iraqi federal policeman takes up a combat position during a military operation to regain control of the eastern suburbs of Ramadi from Islamic State group fighters, in Anbar province, Iraq, ... 較多An Iraqi federal policeman takes up a combat position during a military operation to regain control of the eastern suburbs of Ramadi from Islamic State group fighters, in Anbar province, Iraq, Saturday, Aug. 15, 2015. (AP Photo) 較少