invaded last time in 2014. he understands that the ukrainian people are defending their own land and they will fight hard. both the military as well as civilians will fight against invading russians. trace: do you get that sense, david, that vladimir putin believes to some extent his back is a little bit against the wall? i hope ambassador taylor is right about that. i think he is right that the ukrainian military is much stronger now than it was in 2014 when russia invaded and took crimea, but of course the ukrainian military is not as strong as russia and could not withstand a full scale invasion but inflict a lot of casualty on russian. putin is worried about sanctions but not as worried as ambassador taylor suggested. there are already a loft sanctions on russia. it hasn t deterred putin from