Airman Gilbert Clark, 22nd Aerospace Medicine Squadron medical technician, shows a group of Derby High School Junior ROTC cadets how to carry a litter, March 11, 2015, at McConnell Air Force Base, Kan. Clark was one of several Airmen to show cadets from local schools what the Air Force medical career field is like during a base tour. (U.S. Air Force photo by Senior Airman Victor J. Caputo)