that was a set-up and Saakashvili attacked first. He badly miscalculated and this has been acknowledged by many commentators.
I have to agree with Seanus here
Obama was the great hope and, on this matter at least, has done what needed to be done. Putin is very willing to enter into constructive dialogue with him. The missile shield was a provocative measure and is really not needed.
Obama was/is a great hope? Socialist politician in power of the biggest economy in the world is a great hope? Well, for Batiuszka Putin he surely is a hope:-].
Actually Ukraine will be the reason for the next regional war
Russian is not going to invade Ukraine (soon). The latest crisis in Ukraine may cause a political destabilisation that Russians could use for their purpose.