Lilly Brull, Holocaust survivor, is presented with a memento of appreciation from Col. James Meger, 355th Fighter Wing commander, during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. The memento was created from aircraft aluminum and shaped like a butterfly to represent freedom and hope.

Nine candles burn for the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. The first 6 candles were lit to honor the 6 million Jewish Holocaust victims. The 7th was lit to remember the remaining millions of non-Jewish victims of the Nazis. The remaining two candles symbolized appreciation to symbolize to the members of the U.S. Armed Forces and the Allied forces for their role in liberating the victims of the Holocaust. (U.S. Air Force photo by Staff Sgt. Angela Ruiz/Released)

Yulia Genina, Holocaust survivor, shares her story of survival with an audience during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. Genina shared the story of when her family was forced from their home when she was a young girl.

Yulia Genina, a Holocaust survivor, speaks to an audience during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. Six Holocaust survivors spoke to over 90 people about their personal accounts survival during the holocaust. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)

A young girl touches grains of rice which represent the 6 million Jews who died in the Holocaust during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. It is estimated that more than 10 million people lost their lives as a result of the Holocaust. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)

U.S. Air Force 2nd Lt Charles Hulsizer, 355th Force Support Squadron, holds the "Encyclopedia of the Holocaust" during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. Six holocaust survivors spoke to over 90 people about their personal experiences and survival during the Holocaust. (U.S. Air Force photo by Staff Sgt. Angela Ruiz/Released)

Pawel Linchter, Holocaust survivor, recites the prayer “Mourner’s Kaddish” in Hebrew while Senior Airman Delanie Gray, 355th Comptroller Squadron, listens during the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. The “Mourner’s Kaddish" is a prayer of remembrance, which Gray translated in English for the audience. (U.S. Air Force photo by Staff Sgt. Angela Ruiz/Released)

U.S. Air Force Pawel Linchter, Holocaust survivor, talks with 2nd Lt Charles Hulsizer, 355th Force Support Squadron, following the Holocaust Day of Remembrance at Davis-Monthan Air Force Base, Ariz., May 7, 2015. Each of the Holocaust survivors was presented with a memento that created from the aircraft aluminum, shaped like a butterfly to represent freedom and hope. (U.S. Air Force photo by Staff Sgt. Angela Ruiz/Released)