Prince William Reviews Trooping the Colour Practice Despite Heatwave's Toll on Soldiers

Prince William led rehearsals for Trooping the Colour parade marking King Charles' first birthday celebration as sovereign.
Over 1,500 soldiers and 300 horses participated in London parade as temperatures reached 30 C (86 F), causing several to faint.
The parade is viewed by the royal family and televised, with the Welsh Guards regiment having the honor of Trooping the Colour this year.
King Charles III will oversee the official Trooping the Colour military parade on June 17 to celebrate his first birthday as king.
Prince William visited a new cancer treatment center earlier this week and joked with patients.