The Duke of Cambridge and Prince Harry will tonight celebrate the achievements of wounded, injured and sick servicemen and women who have taken on challenges to aid their recovery.
William and Harry will present the inaugural Endeavour Fund Awards to those who, despite life-changing injuries, accidents or illnesses, have excelled in a sporting or adventure task, used their endeavours to catalyse their own recovery or lived up to the example of explorer Henry Worsley.
The Endeavour Fund is a body set up by the Royal Foundation of the Duke and Duchess of Cambridge and Prince Harry to fund sporting and adventure challenges aiding the recovery of wounded, injured and sick servicemen and women.
The evening will also be an opportunity for the royal brothers and the Endeavour Fund to publicly remember Worsley who died in January last year on a solo trek across Antarctica in aid of the fund.
The 55-year-old adventurer was aiming to complete the first unsupported crossing of the Antarctic and was 30 miles (48km) from his goal when he had to be airlifted from the ice after falling ill and later died.
Worsley was aiming to raise £100,000 but following his death funds poured in and today the total raised, including Gift Aid, is just over £525,000.
During tonight's event, the Henry Worsley Award will be presented to the individual who has best embodied Worsley's example - inspiring others by their determination in the face of adversity during a sporting or adventurous challenge, while supporting others with their recovery.
Two further awards will be presented during the event, being held at the Royal Geographical Society, in central London.
One will recognise an individual who has achieved excellence in their chosen sport or adventure and the second will honour someone who has used their endeavours to promote and catalyse their own recovery.