Marines with Marine Attack Squadron 231 preform preflight

Marines with Marine Attack Squadron 231 preform preflight checks on AV-8B Harrier IIs during cold weather training at Naval Air Station Fallon, Nevada, January 24, 2020. VMA- 231 participates in cold weather training to better prepare the unit for colder climates while maintaining combat efficiency. (U.S. Marine Corps photo by Lance Cpl. Steven Walls)