U.S. Army Maritime and Intermodal Training School students learn to operate and direct a rough terrain container handler at Fort Eustis, Va., Oct. 28, 2015. During the rough terrain container handler course, students interchanged roles of directing and operating the handlers as both skill sets are needed to accurately and safely stack the large and heavy cargo. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/ Released)