Ruth Hartz, Holocaust survivor, greets U.S. Air Force Airmen at Langley Air Force Base, Va., April 16, 2015. After being sheltered by a French farm family and kept in a Catholic convent, Ruth survived the Holocaust and moved to the United States in 1958, where she married and raised a family. (U.S. Air Force photo by Airman 1st Class Devin S. Michaels/Released)