Fight For Fallujah Is On

Elite Iraqi special forces began their push Monday into Fallujah, expecting to encounter the stiffest resistance yet in the campaign to free territory from the Islamic State group. The city 40 miles west of Baghdad has been under militant control longer than any other part of Iraq, and IS fighters have had more than two years to dig in. Networks of tunnels like those found in other IS-held territory have already been discovered in its northeastern outskirts.

ABC’s Tom Rivers joined us from London.