LONDON, ENGLAND - NOVEMBER 10: The Duke of Edinburgh, accompanied by Prince Harry visit the Field of Remembrance at Westminster Abbey on November 10th, 2016 in London, England. (Photo by Kate Green/Anadolu Agency/Getty Images)
LONDON, ENGLAND - NOVEMBER 10: The Duke of Edinburgh, accompanied by Prince Harry visit the Field of Remembrance at Westminster Abbey on November 10th, 2016 in London, England. (Photo by Kate Green/Anadolu Agency/Getty Images)