An Army crew chief waits outside a UH-60 Black Hawk helicopter for a medical team to unload a simulated wounded patient at a landing zone on Fort McCoy, Wis., during a casualty evacuation exercise, June 18, 2015. An Army crew chief waits outside a UH-60 Black Hawk helicopter for a medical team to unload a simulated wounded patient at a landing zone on Fort McCoy, Wis., during a casualty evacuation exercise, June 18, 2015. SHARE: Download: Full Size (2.15 MB) Tags: Photo Essays Credit: VIRIN: 763697-C-LXQ76-034.jpg Photo Gallery