LONDON, ENGLAND - MARCH 03: HRH Queen Elizabeth II and Prince Philip, the Duke of Edinburgh host a ceremonial welcome for the State Visit of The President of The United Mexican, Senor Enrique Pena Nieto and Senora Rivera at Horse Guards Parade on March 3, 2015 in London, England. The Ceremony marks the start of a three day visit to Britain. (Photo by Tim P. Whitby/Getty Images)
