Prince Harry has unveiled a brand new photo and opened up about feeling “numb” in a candid letter in support of a bereavement charity for military families.

The Duke of Sussex stood with his fingers clasped together, wearing a white shirt open at the neck and a suit in the snap, which was shared by his signature Archewell organisation on Thursday.

Harry donned a yellow and black-striped “Scotty’s scarf” for the charity Scotty’s Little Soldiers in the photo.

The non-profit is dedicated to supporting children and young people aged up to 25 years who have experienced the death of a parent who served in the British Armed Forces.

Harry, a military veteran himself who served as a helicopter pilot in Afghanistan, is a global ambassador for the organisation.

In an accompanying letter to young people supported by the charity, the Duke of Sussex wrote it can be “overwhelming and isolating” to lose a parent.

“As we approach Remembrance Day, I want to take a moment to reflect on the profound significance of this occasion and what it means for each of you,” the Prince wrote.

Harry wrote that remembrance is “not only time to honour the extraordinary sacrifices made by our service members” but also “to recognise the impact these sacrifices have on families”.

The sombre letter comes just days ahead of Remembrance Day celebrations on Monday across the Commonwealth in recognition of fallen servicemen and women.

Harry also noticeably wore a red Remembrance poppy in the new image, following the lead of other members of the royal family who traditionally mark the commemoration by donning a poppy.

The Duke of Sussex’s rare comments about grieving a parent comes after he previously opened up about losing his mother Princess Diana in his controversial memoir Spare.

In the book, Harry described the trauma of walking behind is mother’s coffin with his brother Prince William and being forced to greet mourners despite his own grief.

“I remember feeling numb. I remember clenching my fists,” he wrote.

“I remember keeping a little piece of Willy in the corner of my eye because it gave me strength.”