AdvertisementBig Changes And Major Dilemmas Loom In Next Phase Of ISIS War In SyriaPlay04:48Download AudioMarch 23, 2017Tom BowmanAlice FordhamAlison MeusefacebookEmailU.S.-backed Syrian Democratic Forces, made up of an alliance of Arab and Kurdish fighters, regroup on the northern outskirts of Deir Ezzor as they advance to encircle the ISIS bastion of Raqqa on Feb. 21. (AFP/Getty Images)
