US President Joe Biden speaks after signing a book of condolence at Lancaster House in London on September 18, 2022, following the death of Queen Elizabeth II on September 8. - Britain was gearing up Sunday for the momentous state funeral of Queen Elizabeth II as King Charles III prepared to host world leaders and as mourners queued for the final 24 hours left to view her coffin, lying in state in Westminster Hall at the Palace of Westminster. (Photo by Brendan Smialowski / AFP) (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images)