Marine Corps Air Station Yuma, Ariz. -- U.S. Marines with the Aircraft Rescue and Firefighting (ARFF), Headquarters and Headquarters Squadron, Marine Corps Air Station (MCAS) Yuma conduct annual training on MCAS Yuma, Ariz., Sept. 28, 2020. ARFF Marines set up a mobile aircraft fire training device to set up multiple aircraft fire scenarios to maintain operational readiness. (U.S. Marine Corps photo by Cpl. Jason Monty)