LONDON, ENGLAND - APRIL 30: Queen Elizabeth II reacts after presenting New Colours to the 1st Battalion Welsh Guards at Windsor Castle on April 30, 2015 in London, United Kingdom. (Cathal McNaughton - Pool /Getty Images)

LONDON, ENGLAND - APRIL 30: Queen Elizabeth II reacts after presenting New Colours to the 1st Battalion Welsh Guards at Windsor Castle on April 30, 2015 in London, United Kingdom. (Cathal McNaughton - Pool /Getty Images)