airfield. >> one clarifying questionn terms of who was notified, who was in on this, one of the things admiral stavridis just mentioned is the issue of the russian government, obviously the most important ally to the assad regime, and also a big military presence on the ground in syria. do we know if the russians were given a heads-up about this? >> we do not. all we know on that, rachel, is there is this deacconfliction le that is used quite frequently because both american aircraft and russian aircraft are fighting isis and more of the eastern part of the country. this strike took place more in the western part of country just off sort of the border with libya, close to latakia, where, of course, the russians, themselves, have a big air base. most of the deconfliction talks that take place, these are daily conversations saying we have a plane up in this area, you have a plane up in this area. it's designed to avoid any sort of friction or frankly escalating incidents between the united states and russia. we don't know if that deconfliction line was used on this strike.