Iraqi security forces have launched Operation Break Terrorism in collaboration with the Shiite-dominated Popular Mobilization Units and local Sunni tribal mobilization forces to drive the Islamic State (IS) from the key town of Fallujah, the last major IS stronghold in western Anbar province.
Fallujah, long a bastion of anti-government insurgent groups, was one of the first areas in Iraq to fall to IS and its allies in January 2014, months before the group overran Mosul and other Sunni-dominated parts of the country.