TOPSHOT - Britain's Queen Elizabeth II speaks at the formal opening of the Commonwealth Heads of Government Meeting (CHOGM) at Buckingham Palace in London on April 19, 2018. - Queen Elizabeth II, the Head of the Commonwealth opened the Commonwealth summit for what may be the last time today. (Photo by Dominic Lipinski / POOL / AFP) (Photo by DOMINIC LIPINSKI/POOL/AFP via Getty Images)