EVACUATION EXERCISE U.S. Marines carry a simulated casualty to a CH-53E Super Stallion helicopter during a medical evacuation exercise as part of sustainment training on Arta Range, Djibouti, Oct. 31, 2013. The helicopter crew is assigned to Marine Medium Tiltrotor Squadron 166. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 934361-X-SDQ98-414.jpg Photo Gallery