and that is why we need to get down there and isolate that city as fast we can go. reporter: there are specific buildings where they believe top isis operatives may be hiding. u.s. drones and communications intercepts are gathering intelligence on those targets, waiting to strike them when civilians are not there. the big unknown, will trump hand over the raqqah fight to russia and the syrian regime? if you pull completely out you watch focus drift away from defeating isis and recapturing raqqah and eliminating the terrorist threat that emanates from that city. reporter: so if you turn the raqqah fight, the isis fight in syria over to the russians there is a lot of concern at the pentagon they will not have the same focus about the danger there is and the threat that the u.s. believes isis inside raqqah poses to the united states. jim. barbara starr, thank you. just ahead a day after the death of carrie fisher. disturbing news about her mother
it off. reporter: but in this densely populated city finding plotters will be tough. the secret of joint special operations command including navy seals and army delta is now in charge of stopping isis plotters. and will continue to training and advising forces earmarked for the raqqah fight. by in measure the fight for raqqah will be deadly and difficult. but the u.s. is making it clear. it wants to get this a part of the war going against isis before isis plotters inside rocha have any of their plights take hold in the u.s. mostly air power is that right. reporter: there will be air power but a number of u.s. special operations forces continuing to be on the ground