Students from Elk Plain School of Choice visits McChord Field during a Science, Technology, Engineering and Mathematics (STEM) event Dec. 14, 2018 at Joint Base Lewis-McChord, Wash. During the STEM event, the students received the opportunity to see a C-17 Globemaster III and visited the Air Traffic Control Tower. While visiting the C-17, the students learned the ins and outs of a turbine engine. At the ATC, the students learned about how why it is important to communicate with incoming and outgoing aircraft. (U.S. Air Force photo by Staff Sgt. Divine Cox)