U.S. Soldiers with the 1050th Transportation Battalion, South Carolina Army National Guard gather around Sgt. 1st Class William Driggers, center, a motor sergeant with the 1052nd Transportation Company, as he points out tire positioning for hooking and towing a vehicle Nov. 2, 2013, during Palmetto Lightning in Greenville, S.C. Palmetto Lightning was a joint civilian/South Carolina Army National Guard exercise designed to prepare agencies in dealing with problematic winter weather.