Global heads gather in London for lavish coronation of Charles and Camilla

Crowning of new king and queen will include UK's biggest military spectacle in 70 years

Foreign royalty, heads of state and other dignitaries from around the globe have descended on London for the crowning of King Charles III and Queen Camilla, which will include a military spectacle unmatched in Britain in 70 years.

Seven thousand troops will be on parade with 19 military bands in a coronation procession stretching one mile from front to rear, the most at any state occasion since the 1953 coronation of Queen Elizabeth II.