U.S. Marine Corps Lance Cpl. Justin Knight, a military

U.S. Marine Corps Lance Cpl. Justin Knight, a military working dog handler with 1st Law Enforcement Battalion, assigned to Charlie Company, 1st Battalion, 5th Marine Regiment, 1st Marine Division, pushes his patrol explosives detection dog, JoJo, off of his lap while awaiting training at Marine Corps Base Camp Pendleton, California, Sept. 10, 2019. 1st Battalion, 5th Marines conducted a realistic training exercise in cooperation with the Expeditionary Operations Training Group to increase unit preparation for future challenges across air, land, sea, space and cyber domains. (U.S. Marine Corps photo by Lance Cpl. Brendan Mullin)