Day 4 - Linking up with aviationFOB SHANK - Dusty, desolate, in the middle of nowhere. Close your eyes tight and open them up. You may think you are somewhere in the high desert of central Nevada, perhaps east of Rawhide and north of Gabbs.Mountains surround the valley here, rising above the barren desert floor. For the men and women of Bravo Company, 189th GSB Aviation of the Nevada Army National Guard, this has been and will be home for a while. Plywood buildings and tents dot the base that sits in Logar Province, south-southwest of Bagram and Kabul, but …