LONDON, UNITED KINGDOM - NOVEMBER 01: Grooms and members of the Household Cavalry Mounted Regiment escort the Diamond Jubilee State Carriage carrying Queen Elizabeth II and Colombia's President Juan Manuel Santos as they depart his ceremonial welcome at Horse Guards Parade on November 1, 2016 in London, England. The President is on a state visit to Britain. (Photo by Niklas Halle'n - WPA Pool/Getty Images)
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