3+2+1= Check 6
U.S. Air Force Senior Airman Christopher Webb, 455th Expeditionary Maintenance Squadron aircraft fuels journeyman, focuses on a target during Check 6 training May 25, 2015, at Bagram Air Field, Afghanistan. During training, Airmen are briefed on the threat levels and possible hostile situations that could occur at BAF, followed by hands-on weapons retention training. (U.S. Air Force photo by Senior Airman Cierra Presentado/Released)