First Army soldiers of the 3rd Battalion, 349th Regiment Logistics Support Battalion, 177th Armored Brigade are instructed in casualty medical evacuation by the staff of Medical Task Force Shelby during Battle Assembly. Proper 9-line radio communication, casualty field care, litter carry and helicopter safety procedures are instructed utilizing a UH-60A Black Hawk air asset during the training exercise. (U.S. Army photo by Spc. Karen Sampson/ Released)