Gen. David H. Berger, the Commandant of the Marine Corps, and Sgt. Maj. Troy E. Black, the Sergeant Major of the Marine Corps, speak to Marines stationed on Marine Corps Air Station (MCAS) Yuma on the station parade deck Oct. 23, 2019. The purpose of the visit was to discuss upcoming changes in the Marine Corps with the Marines on the air station, address any of their questions, and get general feedback from the personnel. (U.S. Marine Corps photo by Sgt. Isaac D. Martinez) - Gen. David H. Berger, the Commandant of the Marine Corps, and Sgt. Maj. Troy E. Black, the Sergeant Major of the Marine Corps, speak to Marines stationed on Marine Corps Air Station (MCAS) Yuma on the station parade deck Oct. 23, 2019. The purpose of the visit was to discuss upcoming changes in the Marine Corps with the Marines on the air station, address any of their questions, and get general feedback from the personnel. (U.S. Marine Corps photo by Sgt. Isaac D. Martinez)