The Princess of Wales, Kate Middleton, expressed her regrets for missing the annual Trooping the Colour parade in honor of King Charles III’s birthday, as she is currently being treated for cancer. In a heartfelt letter to the Irish Guards, Middleton praised the Regiment for their dedication and preparation for the event, despite not being able to attend the rehearsal on June 8. She apologized for her absence and conveyed her hope to represent them again soon. The Irish Guards were deeply moved by Middleton's letter and expressed their well wishes for her recovery. Despite Middleton's absence, the Irish Guards confirmed that she will not attend the traditional Colonel’s Review to take the salute. Middleton signed the letter as "Colonel Catherine," showing her continued commitment to her role as colonel of the regiment. The Prince and Princess of Wales reposted the letter, showing their support for Middleton during this difficult time.