U.S. Air Force Airman 1st Class Adam Chesser, 509th Logistics Readiness Squadron vehicle maintenance technician, works on the propeller shaft of a Humvee at Whiteman Air Force Base, Missouri, Oct. 13, 2020. The 509th Security Forces Squadron utilizes two variants of up-armored Humvees for base security that were specially designed to meet the needs of the Air Force including a larger storage area in the back for various pieces of equipment ranging from explosives ordnance disposal to communications. (U.S. Air Force photo by Airman 1st Class Parker J. McCauley)