FALLUJAH, June 13, 2016 (Xinhua) -- A senior commander of the Iraqi army watches out on the frontline at southern Shuhada district, south Fallujah city in Iraq's western Anbar province, in battles against Islamic State (IS), on June 13, 2016. Iraqi security forces' battles to push into the IS stronghold in Fallujah continued on Monday in southern the city, a provincial security source said. (Xinhua/Khalil Dawood)