Government forces head for rebel-held city in biggest troop movement yet towards territory held by ISIL and allies. Al Jazeera's Imran Khan reports from Baghdad. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/
