help of russian asteroids. so let's get more they're joined now by d.w. correspondent julie han in istanbul and in moscow d.w. correspondent emily sherman welcome both let's start with you in istanbul yulia so what does president obama or want to achieve what are his priorities from the sleazy. well president edwin's main concern as you mentioned is that. it will cause a new refugee exodus $3.00 to $4000000.00 people are currently trip trapped inside it live province that surprised some italy the population of berlin just to give you an idea and in recent months the syrian army with russian air support has been pounding targets in including civilian targets like hospitals all of this despite a series of cease fires despite a key buffer zone deal reached between president edwin and president putin last