King Charles III, aged 75, unveiled a new portrait on UK's Armed Forces Day.

Photographer Hugo Burnand captured the regal image at Windsor Castle.

The portrait showcases the King in full military regalia with medals.

Burnand, 60, known for royal photos, has documented Charles' reign.

Queen Camilla, 76, expressed gratitude in a heartfelt video message.

She honored military personnel for their service and sacrifice.

Prince William, 42, and Kate Middleton, 42, joined in honoring armed forces.

The couple shared a video on social media in military settings.

The day celebrated soldiers, veterans, and their families with respect.