Berlin, Germany. 25th June, 2015. Britain's Queen Elizabeth II chats with Klaus Wowereit (L), former Governing Mayor of Berlin, as Simon McDonald, Britain's ambassador to Germany, looks on during the Queen's Birthday Party at the residence of the British Ambassador to Germany in Berlin, Germany, 25 June 2015. The British monarch and her husband are on their fifth state visit to Germany, from 23 to 26 June. © dpa picture alliance Credit:  dpa picture alliance/Alamy Live News Stock Photo