MARINE CORPS AIR STATION YUMA, Ariz. -- A U.S. Marine with the Provost Marshal Office fights back an aggressor during oleoresin capsicum spray training on Marine Corps Air Station Yuma, Ariz., July 30, 2021. After being sprayed, Marines were required to go through a series of obstacles in order to complete the course. (U.S. Marine Corps photo by Lance Cpl. Matthew Romonoyske-Bean)