this city taken over by isil and those in the city suffering through the bar barrebarity of . >> what's the role in the city? >> all u.s. forces are carrying out specific responsibilities with regard to our overall campaign. they may be part of the logistical work, the advisory work we've been doing with the iraqis. some of them have been very involved in training the 12 brigades that are carrying out this mission in mosul. others, of course, have been involved in the air campaign. we continue to deliver combat air support, which has been critical to this fight in terms of rolling isil back in iraq. we'll continue to be critical in mosul specifically. they're all doing a variety of responsibilities carrying out a variety of responsibilities, but what's important here, wolf is that it's the iraqis in the lead. we're in a support role doing all we can to help them along with other members of the international coalition. >> i take it, though, there are