U.S. Air Force Staff Sgt. Jacob V. Myers and Tech Sgt. Daniel R. Plefka, 316th Civil Engineer Squadron heating, ventilation and air conditioning shop, connect ducting to a mobile HVAC unit outside the Tactical Fitness Center at Joint Base Andrews, Md., June 11, 2025. Members of the 316th CES set up power and HVAC units for U.S. Army Soldiers staging at the fitness center for the Army’s 250th Birthday Festival and Parade in Washington, D.C. (U.S. Air Force photo by Patrick Griffith)