Pfc Michael Barke, a shower/laundry and clothing repair specialist assigned to Headquarters and Headquarters Company, 43rd Sustainment Brigade, straps a wounded Soldier to a litter and Sgt. Jonathon Carmean, a motor transport operator assigned to HHC, 43rd SB, prepares to call in a nine-line medical evacuation for the Soldier while Spc David Tena, a health care specialist assigned to Headquarters Support Company, Division Special Troops Battlion, 4th Infantry Division, watches for proper technique during a Combat Lifesavers certification lane, Oct 30. The DSTB Aid Station Team conducted the certification to teach the Soldiers how to perform tactical combat casualty care to aid in minimizing preventable causalities, said Staff Sgt. Charles Temple, a health care specialist assigned to HSC, DSTB, 4th Inf. Div .