Tribes in Afghanistan: A Guest Post from Michael Yon

The following is a guest post from Michael Yon, which we're really privileged to get and which I'm delighted to share. As I type this, Michael is reporting from Sangin, Helmand Province, Afghanistan. Check out  Michael Yon Online Magazine to read his reports. Michael is a former Green Beret, who has reported from Iraq and Afghanistan since December 2004. No other reporter has spent as much time with combat troops in these two wars. It is also important to note that Michael is an independent comba