of russian inn kergs into the area before, they have had tensions, in the past. it is a history here. reporter: that is correct. there s been a number of incursions according to turks as well as the americans have said the russians have violated turkish air space and also have had drones violate the air space. turkey has warned russia about this in the past. and there was talk a month ago about coordination. making sure that nothing happens. the united states leading that effort with the russians because no one wanted to see what happened today where a plane of theirs shot down over syria and we don t know the fate of the two pilots. we are hearing they both ejected.