Dr. Alexander Knauff, University of Trier professor of social work and sciences and St. Vinzenzhaus caretaker, takes a photo of the institution’s residents with Santa Claus during a holiday party at the institution of child and youth services in Speicher, Germany, Dec. 13, 2015. Spangdahlem Air Base’s First Four group visited the institution to throw a holiday party. (U.S. Air Force photo by Airman 1st Class Timothy Kim/Released)