U.S. Wyoming Air National Guardsman, Senior Airman Shawn Smith, Aeromedical Evacuation technician with the 187th Aeromedical Evacuation Squadron, Cheyenne Wyo., checks a simulated patient’s pupil activity onboard an MC-130P Combat Shadow aircraft during Angel Thunder 2015 exercises at Davis-Monthan AFB, Ariz., June 7, 2015. The way in which pupils react to light can indicate if the patient has sustained head trauma. (U.S. Air National Guard photo by Senior Airman Rachael Kane/Released)