A special party is to be held in the grounds of Buckingham Palace for the children of those who have died serving in the Armed Forces.
Their Royal Highnesses have arranged the event to acknowledge and honour the fact that young children have had to come to terms with the loss of someone very close to them at a young age.
Singer Jess Glynne and ventriloquist Nina Conti will perform at the event, as will other children's entertainers and magician Lance Corporal Richard Jones.
The event will be attended by children up to the age of 18 and their parent or guardian.
Representatives from charities such as Child Bereavement UK, Scotty's Little Soldiers, Winston's Wish and SSAFA, the Armed Forces charity – will attend and provide practical support on the day.
The Duke and Duchess and Prince Harry hope the event will provide an opportunity for these children to broaden their support networks amongst other families with similar experiences.
As part of the day, guests will be able to enjoy face painting, arts and crafts sessions, science experiments and try out circus skills.
The Royal Foundation's Full Effect and Coach Core programmes will also attend to lead workshops in beatboxing and breakdancing.
Finally guests will be treated to a special display from the RAF Falcons parachute team.