Battle for Mosul: Operation to retake Iraqi city from IS begins

October 18, 2016 15:22 IST 1 of 5
Tanks move past soldiers in military fatigues as the sun begins to set east of Mosul, where the Iraqi government launched a U.S.-backed offensive to drive Islamic State from the northern city, in this still image taken from video released October 17, 2016. Credit: Reuters