Britain’s King Charles III (C) rides back to Buckingham Palace after the King’s Birthday Parade, ‘Trooping the Colour’, in London on June 17, 2023. The ceremony of Trooping the Colour is believed to have first been performed during the reign of King Charles II. Since 1748, the Trooping of the Colour has marked the official birthday of the British Sovereign. Over 1500 parading soldiers and almost 300 horses take part in the event. (Photo by Adrian DENNIS / AFP) (Photo by ADRIAN DENNIS/AFP via Getty Images)