was almost inevitably will be spun by the remaining elements within the so-called islamic state into a moment of martyrdom for their so called caliph rather than being seen as a significant blow to them. as you are suggesting around the world, there will be security forces on a heightened state of alert for some time. in order to protect other mak nations and indeed iraq and syria against revenge attacks. this is an organization much like al qaeda that now exists as an ideological hydro-headed creature rather than as it was in the past before it was physically destroyed as an area, as an entity that claimed and did control substantial swaths of the middle east and iraq. >> sam kylie there for us on the border. we'll be hearing more about this operation. as you say, extremely daring