there are hundreds of ieds left behind. civilians have been told to stay away. in one day, says this brigadier, we found 511 improvised explosive devices, an unbelievable number. he was injured by shrapnel from one of those ieds. they describe the isis fighters as sewer rats and say they are hiding out. but taking prisoners doesn't seem to be in the cards. they won't get away this soldier tells me, we'll kill them. shia troops have flooded into this sunni-dominated area raising fears of sectarian tensions and reveeng killings. there are, however, sunnis who have joined the fight against isis. last spring isis fighters attacked the home of a sunni