luhansk. where the ukrainian government is firmly in charge. there are a lot of ukrainian troops in and around the area. if putin does intend to take these areas, it would be a much more overt war and hostile level of conflict than what we ve seen now with putin taking over or providing protection to peace-keeping services, as he described it, to an area russia already has. that may well explain why the u.s. officials, white house officials overnight began to reassess their initial reaction, as you know, as you ve been reporting is not really an invasion because russians have been there for eight years and it really solidified overnight. reporter: it did and administration officials are telling me what they witnessed on the ground overnight, everything richard mapped out is why they re shifting language