Arriving at the 7th Armoured Division Memorial near Mundford on Wednesday, Camilla waved to the crowds and soldiers from an open-top car which belonged to Field Marshal Montgomery who led Allied troops to victory in the Egyptian desert.

The Duchess took the salute from the Royal Tank Regiment, the Guard of Honour on the parade ground, and attended a short service of remembrance conducted by the Bishop of Lynn, the Rt Rev James Langstaff, before laying a poppy wreath at the Memorial Last Post.

After holding a minute's silence she inspected several vehicles used in the battle and met old comrades who told her stories of pride and dark humour in the face of adversity.

One of the veterans who spoke to the Duchess was Robert Curson, a staff sergeant attached to the 7th Armoured Division.

"She told how her father, Major Bruce Shand, was injured and captured during the battle," the 88-year-old said.

"My main duties were reconnaissance and car maintenance. Conditions were tough in the desert and it could get so hot that bully beef would melt in the can."

Before entering the marquee to join the old soldiers for a cup of tea, the Duchess stopped to pat a Sherman tank as she passed.

Councillor John Labouchere, vice-chairman of Breckland Council and ward representative for the Weasenhams and Wellingham area, was among the dignitaries who accompanied Camilla on her visit.

"It is a very important moment for our district and for me," he said.

"My father, Peter Labouchere was a colonel with the 3rd Hussars who fought in the battle.

"My son, David, is also a colonel with the Queen's Royal Hussars."

Leading the Guard of Honour, Regimental Sergeant Major Iain Thomson said the old comrades were an inspiration to the younger soldiers and officers who are currently serving in Iraq and Afghanistan.

South West Norfolk MP Mr Christopher Fraser said it was important for people to recognise and commemorate events which helped swing the war in the Allies' favour.