A Marine with 11th Marine Expeditionary Unit programs a counter-unmanned aircraft system on a Light Marine Air Defense Integrated System during a predeployment training exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, California, Nov. 13, 2018. The LMADIS and other innovations will be on display during the 54th annual Sea-Air-Space Exposition, held May 6–8 at the Gaylord Convention Center in National Harbor, Maryland. (U.S. Marine Corps photo by Lance Cpl. Dalton S. Swanbeck) - A Marine with 11th Marine Expeditionary Unit programs a counter-unmanned aircraft system on a Light Marine Air Defense Integrated System during a predeployment training exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, California, Nov. 13, 2018. The LMADIS and other innovations will be on display during the 54th annual Sea-Air-Space Exposition, held May 6–8 at the Gaylord Convention Center in National Harbor, Maryland. (U.S. Marine Corps photo by Lance Cpl. Dalton S. Swanbeck)