U.S. Air Force Staff Sgt. Justin Duckett, 375th Aeromedical Evacuation Squadron, Scott AFB, Il., communicates with aircrew inside a C-130J Hercules aircraft during a joint service medical field exercise, Joint Readiness Training Center (JRTC), Fort Polk, La., July 17, 2012. Service members at JRTC 12-08 are educated in combat patient care and aeromedical evacuation in a simulated combat environment.