Special forces from the Syria Democratic Forces gather in Haj Hussein village, after taking control of it from Islamic State fighters, in the southern rural area of Manbij, in Aleppo Governorate, Syria May 31, 2016. REUTERS/RODI SAID   Syrian government troops backed by Russian air power moved to within 25 km (15 miles) of an … Continue reading Syrian army, U.S.-backed forces advance separately against Islamic State | Reuters