The Duke of Sussex, 35, is supporting Walking With The Wounded’s expedition, which pays homage to the travels of Wilfred Thesiger across the Arabian Peninsula in the 1940s. The veterans’ walk across the Omani desert starts on November 20 and ends on December 11.
Harry, who is setting up home in the US with wife Meghan Markle after quitting royal duties, is expedition patron.
He said: “At the end of this year, a year that has seen unprecedented global challenges, a group of veterans will be tackling a challenge unlike anything they’ve faced before.
“Facing searing temperatures and pulling a cart that weighs more than three times their own body weight, these veterans will need to summon incredible physical and mental strength.
“I am proud once again to support them and support the veterans whose courage, determination and resilience is a credit to all of us who have served.
“To the men and women selected for this team, good luck. I know people all over the world will be cheering you on.”
The Walk of Oman is in partnership with the Omani armed forces, with support from the royal office of Sultan Haitham bin Tariq.
The team of ex-service personnel, all of whom have physical or cognitive injuries, aim to highlight the courage and determination of the men and women who have been wounded while serving their countries and draw attention to the support needed in their transition to civilian life.
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“The Oman Expedition creates a new challenge and sense of adventure.
“We are honoured to be walking across the Omani desert, a country so closely aligned in many areas with the UK, particularly with our military.
“The desert and intense heat of the Middle East is one environment we have not yet faced.
“Oman was chosen because of the very close ties between our two nations.
“The UK supported His Majesty Sultan Qaboos during the Dhofar Conflict in 1972 and the UK and Omani military continue to train closely with one another today.
“Our aims, as before, are to raise and maintain awareness of the challenges many face in the wider military community.
“The funds raised will support WWTW’s existing programmes -supporting those ex-service men and women who have struggled since they left the Armed Forces.”
Details of the selection process and expedition team will be revealed in the coming months.