LONDON, ENGLAND - JULY 12:   Queen Elizabeth II, left, stands with Queen Letizia of Spain as their husbands King Felipe and Prince Philip inspect an honour guard during a Ceremonial Welcome on Horse Guards Parade on July 12, 2017 in London, England.  This is the first state visit by the current King Felipe and Queen Letizia, the last being in 1986 with King Juan Carlos and Queen Sofia.   (Photo by  Matt Dunham - WPA Pool/Getty Images)