A U.S. Army officer utilizes a remote-control station to operate an 8-ton excavator from beyond visual line of sight at a distance of approximately 200 m during the Maneuver Support, Sustainment, Protection Integration Experiment (MSSPIX20) demonstration at Fort Leonard Wood, Missouri, Sept. 16, 2020. The U.S. Army Engineer Research and Development Center researchers demonstrated unmanned capabilities for combat engineers during the MSSPIX20 training exercise. (U.S. Army Corps of Engineers photo)