we're going to begin with cnn's chief national security correspondent jim sciutto in the western part of ukraine. these next few hours are crucial in terms of where and how much we see from these russian troops and in terms of what we hear from the white house. what are you looking for? >> reporter: yeah, two big questions. the first is, is this just the first of many moves by putin to further slice off territory from ukraine? does a broader invasion follow? but, two, as you note, john, does what we have seen so far qualify in the view of the u.s. and nato as an invasion that would then draw comprehensive sanctions or certainly more than we have seen so far. i'll tell you what the u.s. intelligence assessment is, the most recent one. speaking to a u.s. official last night, one that the u.s. military does believe that russian forces will move into those newly-declared -- falsely declared independent territories there. that by the way is significant because it would bring those