U.S. Air Force Master Sgt. Mandy Mueller, 39th Medical Operations Squadron medical services flight chief, reads a holiday letter Dec. 11, 2019, at Incirlik Air Base, Turkey. The 39th MDG received a delivery of care packages from church volunteers in Murrysville, Pennsylvania, as a gesture of holiday giving. (U.S. Air Force photo by Staff Sgt. Joshua Magbanua)