Sectarian Tensions Rise as Iraq Takes Fight Against IS Into Sunni Heartland

April 14, 2015 11:33 AM

Iraqi government forces are trying to push out Islamic State (IS) fighters from the vast Sunni heartland of Anbar province. They likely will have to fight without the Iran-backed Shi'ite militias who have proved crucial in the progress made so far against IS in Iraq. Henry Ridgwell reports