Photo Credit: Sgt. 1st Class Mary Rose Mittlesteadt
The 101st Sustainment Brigade "Lifeliners" command team, along with Maj. Gen. James C. McConville, the commander of the 101st Airborne Division (Air Assault); Col. Clay Hatcher, the chief of Operations Groups Sierra; and, Brig. Gen. (Ret.) Phil Mattox, the brigade commander's senior mentor, participate in a rehearsal of concept drill during the unit's validation exercise, Unified Endeavor 2013.