In my simplistic view, either:
a) Saakashvili had the US onside before he launched his attack, i.e. there was tacit support; or
b) it was his idea, and he did not forewarn the US.
If the former this is another pitiful reflection on the USA's frequently crass foreign policy,
if the latter, the man should not be in charge of a post office.
the only good to come out of it, as far as I can see, is that even the most myopic observers can now see Russia for what it is...
Skua