Britain's Queen Elizabeth II meets guests during a garden party held at Buckingham Palace, central London on May 12, 2015. AFP PHOTO / POOL /John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)
Britain's Queen Elizabeth II meets guests during a garden party held at Buckingham Palace, central London on May 12, 2015. AFP PHOTO / POOL /John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)