1st Lt. Taylor Barefoot, a low altitude air defense officer with Marine Medium Tiltrotor Squadron 163 (Reinforced), 11th Marine Expeditionary Unit, programs a counter-unmanned aircraft system on a Light Marine Air Defense Integrated System (LMADIS) during a predeployment training exercise at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Nov. 13, 2018. The LMADIS is a maneuverable, ground based system, mounted to a Polaris MRZR that can detect, identify and defeat drones with electronic attack. (U.S. Marine Corps photo by Lance Cpl. Dalton S. Swanbeck)