First Lt. Christopher J. Harwell, a force protection officer with Task Force Lifeliner and a native of Birmingham, Ala., explains convoy techniques that allow for expeditious medical evacuations to a convoy escort team (CET) at Bagram Air Field, Afghanistan, June 23. The CET, with the Louisiana National Guard’s 1084th Transportation Company, supporting the 157th Combat Sustainment Support Battalion, trains constantly on different techniques that will allow them to have confidence in their equipment and personal capabilities. (U.S. Army Photo by Sgt. 1st Class Mary Rose Mittlesteadt, Task Force Lifeliner)