Senior Airman Adam Kresge, structural engineering journeyman with the 911th Civil Engineering Squadron, cuts a piece of ceiling tile at the Pittsburgh International Airport Air Reserve Station, Dec. 3, 2017. Airmen of the 911th CES propel the 911th Airlift Wing's mission by serving as the structural backbone of all buildings on the base. (U.S. Air Force photo by Staff Sgt. Marjorie A. Bowlden)