180425-N-CB398-051 PHILADELPHIA (April 25, 2018) David Tuck, a Holocaust survivor, tells his story to employees at Naval Surface Warfare Center, Philadelphia Division, during a Holocaust remembrance ceremony April 25, 2018. Tuck spent four years in concentration camps in Poland, Germany and Austria from 1942-1945. (U.S. Navy photo by Mass Communication Specialist 2nd Class Zachary Allan/Released)