going after the distribution network of these small trucks that they use to transport fuel. and there is a real risk of civilian casualties. so this may be a greater willingness to risk that to cut off these finances and appreciation the fact because the battlefield is stalemated they have to do something to break that stalemate. >> if assuming that the kurdish hold on sinjar remains and there isn't some big isis counterattack in the next few days, is the u.s. and are the kurds preparing to launch a campaign to retake mosul? >> i don't think that's going on now. and i don't think it's within the capacity of the peshmerga as well trained as they are to go and take mosul. the big challenge there is who's going to hold the place. and here it's not sufficient to have the peshmerga forces or american forces go into mosul. you need sunnis willing to hold onto mosul. and the sunnis right now are faced with an awful choice of being part of isis or being part