U.S. Air Force Staff Sgt. Anthony Ditonno, 733rd Logistics Readiness Squadron fuels distribution operator, presents fuels laboratory equipment to Gen. Mike Holmes, the commander of Air Combat Command, at Joint Base Langley-Eustis, Virginia, Feb. 7, 2020. Over the course of two days, Holmes toured the 1st FW and the 633rd Air Base Wing in order to familiarize himself with their missions and learn about new developments throughout the wings. (U.S. Air Force photo by Senior Airman Tristan Biese)