U.S. Marine Corps Sgt. Juan Carlos Perez, a military

U.S. Marine Corps Sgt. Juan Carlos Perez, a military policeman with 1st Law Enforcement Battalion (LE Bn.), I Marine Expeditionary Force Information Group, conducts a safety brief before a "rock inoculation" drill during a non-lethal weapons training exercise at Marine Corps Base Camp Pendleton, Nov. 14, 2019. The exercise taught the Marines of 1st LE Bn. how to properly employ non-lethal force in policing and combat situations they may encounter during military operations. (U.S. Marine Corps photo by Lance Cpl. Brendan Mullin)