MARINE CORPS AIR STATION YUMA, Ariz. --
U.S. Marines with the Provost Marshal's Office, Headquarters and Headquarters Squadron, Marine Corps Air Station (MCAS) Yuma, conduct Special Reaction Team (SRT) vehicle assault training on MCAS Yuma, Ariz., May 16, 2019. The SRT is comprised of military police personnel trained to give an installation commander the ability to counter or contain a special threat situation surpassing normal law enforcement capabilities. (U.S. Marine Corps photo by Pfc. John Hall)