U.S. Air Force Tech. Sgt. Isaac Sunnock, 633d Civil Engineer Squadron station captain, explains the function of the control system on the Langley Fire Department’s new aerial ladder fire truck at Joint Base Langley-Eustis, Virginia, Dec. 10, 2021. Training and familiarization with the equipment used on calls help increase readiness and enhance the safety of everyone involved. (U.S. Air Force photo by Senior Airman Zoie Cox)