Iraq has launched a military operation to try and retake Anbar province from ISIL. Shia militia are involved in the operation - which some fear could raise sectarian tensions. Al Jazeera's Imran Khan reports from Bzabiz bridge on the edge of Anbar province. More on our website: http://aljazeera.com Follow us on Twitter: / ajenglish Subscribe to our channel: http://bit.ly/AJSubscribe Find us on Facebook: / aljazeera