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Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. (Photo by PETER NICHOLLS / POOL / AFP) (Photo by PETER NICHOLLS/POOL/AFP via Getty Images)

Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. (Photo by PETER NICHOLLS / POOL / AFP) (Photo by PETER NICHOLLS/POOL/AFP via Getty Images)

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Britain's Queen Elizabeth II addresses the parade during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. / AFP PHOTO / POOL / John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

Britain's Queen Elizabeth II addresses the parade during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017.  / AFP PHOTO / POOL / John Stillwell        (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

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Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. / AFP PHOTO / POOL / PETER NICHOLLS (Photo credit should read PETER NICHOLLS/AFP via Getty Images)

Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017.  / AFP PHOTO / POOL / PETER NICHOLLS        (Photo credit should read PETER NICHOLLS/AFP via Getty Images)

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Britain's Queen Elizabeth II attends a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. / AFP PHOTO / POOL / John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

Britain's Queen Elizabeth II attends a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017.  / AFP PHOTO / POOL / John Stillwell        (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

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Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017. / AFP PHOTO / POOL / John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

Britain's Queen Elizabeth II inspects the Regiment during a ceremony to present new colours to the 1st Battalion and F Company Scots Guards at Buckingham Palace in London on May 18, 2017.  / AFP PHOTO / POOL / John Stillwell        (Photo credit should read JOHN STILLWELL/AFP/Getty Images)