Blood for Oil

I have been wondering what motivated Russia to invade Georgia last week. I understood the timing, since everyone, including our President, was focused on the Olympics, but why did they do it? I now have the answer. Apparently, that area has a large oil pipeline supplying oil to Western Europe from oil fields near the Caspian Sea.
http://marketplace.publicradio.org/display/web/2008/08/11/georgia_oil

Since Russia already controls all the other major oil pipelines supplying Western Europe, it is only natural that they would want complete control so that they can control the flow of oil and hence the price. By invading a minor country far inland, they were able to take control. For a minor example of their power, see
http://www.npr.org/templates/story/story.php?storyId=6777772

Unlike the liberation of Iraq, this is truly an example of blood for oil.