has been going on into syria and the focus to racca? guest: right nsyria, focus on rocca, north central desert, this is the main city they still hold in syria, the u.s. has had 500 special operators ssisting rebel forces, mostly kurdish syrian kurdish forces there. he u.s. forces are not on the front line in combat, but are very close in advising and cented g and they will more marines to that area, several hundred marines to provide artillery support. we are seeing this big, i would toward raqqa, main islamic state city. tillery support, for various factions of syrian kurdish fighters, but again, there is other forces that will that, the assad regime ands to reclaim the country assad called americans invaders, not invited in. turkey is supporting their own groups number of converging on raqqa. the group that mean we're working best with in that theater? guest: yes, the assad regime does not like them, turk senot supportive of this faction, you have this multi-sided conflict oing on, yes, those are the forces u.s. is working closely wit

. >> hundreds of marines are being deployed to syria to help recapture the city of racca. the u.s. has been supporting and shaining rebel and kurdi forces. qqa fell to islamists who declared it their capital in 2013. reporter: the u.s. flag flying above armored vehicles rolling into syria here to support local troops. they are battling islamic state. have established an outpost as they close in on the militants in nearby raqqa, the de facto capital. they doubled the already 500 military personnel on the ground. although this is a temporary deployment, it could be a sign that the u.s. is becoming more hands-on. earlier this week, they cut a road. road out of the city, in an attempt to -- military sources say they could be completely isolated within weeks. iraqi forces say they hope to recapture all of mosul within a month. the battle to liberate the last iraqi city under a jihadist control began in october, but the islam is a putting up a fierce resistance. fighting raging near the city's antiquities museum where government groups seized yesterday appear let's go to iraq. we are in

at the pentagon described how the anti isis fight is ramping up to get coalition forces closer to racca steve, the u.s. army inserted syrian defense forces using chinook helicopters those syrian curdish fighters and they got win 28 miles of racca not unusual again to see a spike in these kind of attacks to coincide with high profile diplomatic talks. >> one of things i know that investigators just frustrates them so much are these show-call lone wolf attacks. do we know at this point, we've heard from the british investigators that this was someone who may have acted on their own, when you hear of these arrests and these raids targeting numerous people, was this someone who you feel was or who we know had any intel that was directed to this or someone who acted on their own and if directed by whom? >> well, they are trying to investigate all of that right now. right now, british authorities are saying that they think that he acted alone, but, again, may have been inspired by terrorist propaganda but he did seem to be a part of a group and stream mist group that was being investigated al

as the fight against isis ramps up, as isis gets squeezed in its -- in racca and mosul. as isis threatens attacks all over europe. so far britain has been spared, but the intelligence were telling us that you have to be careful. they said in the last two years they have thwarted ten attacks. as for this one, the details, assist you say, there was apparently an incident where somebody in a vehicle plowed through pedestrians on the westminster bridge, which leads from one side of the river over across to big ben and the houses of parliament. then the incident continued with an assailant stabbing a police official and then that caused police to respond with firearms. that is why the police are calling this a firearms incident. we do not know whether there's more than one assailant. we do not know whether the assailant, who was attacked, is alive or dead. we know that there was one victim killed. so far that's all we know. others, according to the press, have had catastrophic injuries. we know that the london ambulance has said that this is now what they call a major inciden