From left, U.S. Air Force Chief Master Sgt. Kevin Helms, 316th Wing command chief, and Col. Jun S. Oh, 316th Wing and installation commander, arrive at the Aerospace Physiology unit on Joint Base Andrews, Md., Dec. 17, 2024. The unit trains individuals to handle pressure changes in aircraft at high altitudes. (U.S. Air Force photo by Airman 1st Class Daniel Walderbach)