U.S. Marines with Marine Aviation Logistics Squadron (MALS) 13, Marine aviation maintenance, conduct routine maintenance and inspections on gear and equipment on Marine Corps Air Station Yuma, Ariz., Nov. 20, 2019. MALS-13 is a Squadron on MCAS Yuma who's mission is to provide aviation support, guidance, and direction to the Marine Aircraft Group Squadrons. (U.S. Marine Corps photo by Lance Cpl John Hall)