U.S. Marine Corps Lance Cpl. Cody Parrish ,right, is

U.S. Marine Corps Lance Cpl. Cody Parrish ,right, is pieing a door, while U.S. Marine Corps Lance Cpl. Jesus Guerra provides front security during an active-shooter, first-responder training on Camp Foster, Okinawa, Japan, Dec. 18, 2018. The training allowed Provost Marshal's Office Marines from across Okinawa to test their partnership and quick thinking abilities under stress. Parrish and Guerra are military police officers with Headquarters and Support Battalion, Marine Corps Installations Pacific – Marine Corps Base Camp Butler, Japan. (U.S. Marine Corps photo by Lance Cpl. Nicole Rogge)