step by step just as we have prevented a terror corridor from being formed along our border with drabble those and bob operations. we've launched a military operation into the northern afferent province of syria an operation in mamby it will come after offering. the promises made to us have not been kept up to now so nobody can object if we do what is necessary. ok for more we're going to talk to door injun's our correspondent in istanbul adoring are there any signs at this point that turkey is preparing to send large numbers of ground troops into syria. no not yet and i think that what's going on is a very sustained air bombardment already over one hundred targets have been hit according to the turkish military this bombardment is expected to carry on for several days possibly even weeks and the reason why is that this is a very mountainous region the syrian kurdish militia are believed to be very well dug in and the turkish military do see that air strike is the key to the success of this operation they will be looking to continue to bombard this area backed up by artillery for some ti