U.S. Army Maj. Elizabeth Gum relays the condition of a simulated casualty to a triage station during a mass casualty exercise on Kandahar Airfield, Afghanistan, Nov. 22, 2013. Gum, a medical liaison officer, is assigned to 82nd Sustainment Brigade, U.S. Central Command Materiel Recovery Element. U.S. Army Maj. Elizabeth Gum relays the condition of a simulated casualty to a triage station during a mass casualty exercise on Kandahar Airfield, Afghanistan, Nov. 22, 2013. Gum, a medical liaison officer, is assigned to 82nd Sustainment Brigade, U.S. Central Command Materiel Recovery Element. SHARE: Download: Full Size (2.92 MB) Tags: photo essays, week in photos, week in photos Credit: VIRIN: 443897-D-DPO59-421.jpg Photo Gallery