U.S. Army Spc. Daniel Mitchell, a heavy vehicle operator assigned to the 597th Transportation Brigade, 832nd Trans. Battalion, 688th Rapid Port Opening Element, performs preventative maintenance checks at Joint Base Langley-Eustis, Virginia, Sept. 16, 2019. During the weekly maintenance check Mitchell examined the engine and looked over the inside and outside of the vehicle to ensure there were no damages. (U.S. Air Force photo by Senior Airman Derek Seifert)