CELLE, NIEDERSACHSEN - JUNE 26:  Queen Elizabeth II and Prince Philip, Duke of Edinburgh (R), picks up a bouquet of flowers during their arrival at the military airport of Celle on June 26, 2015 in Celle, Germany. The Royal couple visited the concentration camp memorial at Bergen-Belsen this morning. This is the final day of a four day state visit, which is their first to Germany since 2004.  (Photo by Alexander Koerner/Getty Images)