Tradition
U.S. Air Force Tech. Sgt. Curt Mitchell, 23rd Wing ground safety, is promoted to the rank of E-6 at Moody Air Force Base Ga., Jan. 31, 2012. It is an Air Force tradition to have the stripes punched after promotion as a sign of solidity. (U.S. Air Force Photo by Airmen 1st Class Paul Francis/Released)