Update: for much more detail and context, see Dr. Karbuz's excellent post on Georgia and Russia here.
This isn't about DOD energy efficiency ... and it is. Geopolitical interests, including recent moves by Russia to take control of the Georgian segment of BTC pipeline, are drawing us in. Flowing through pipe goes approximately 1 million barrels a day destined for Europe and the US. Of course, that's only when it's in operation, and at present it's not.