LONDON, ENGLAND - NOVEMBER 05: Crosses placed by Prince Philip, Duke of Edinburgh and Prince Harry at a Service in the Field of Remembrance at Westminster Abbey on November 5, 2015 in London, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - NOVEMBER 05: Crosses placed by Prince Philip, Duke of Edinburgh and Prince Harry at a Service in the Field of Remembrance at Westminster Abbey on November 5, 2015 in London, England. (Photo by Chris Jackson/Getty Images)