The role of the town of Wootton Bassett in commemorating the members of the armed forces who have died while on service abroad is to be recognised with the awarding of the "Royal" accolade.
The Princess Royal is to deliver the Letters Patent on behalf of the Queen making the Wiltshire town Royal Wootton Bassett.
The former defence secretary Dr Liam Fox had been due to attend but following his resignation, the armed forces' delegation will be headed by Sir Peter Wall, the chief of the general staff.
The decision to award the town with the royal prefix was the Queen's following a petition from Prime Minister David Cameron.
The town became famous as thousands of people began to turn out to pay their respects to the fallen service men and women who died in Iraq and Afghanistan who had been repatriated at nearby RAF Lyneham, starting in April 2007.
Wootton Bassett's role ceased at the end of August when the base for repatriations moved to RAF Brize Norton with the town of Carterton taking over as the place for grieving families and members of the public to pay their respects.
Princess Anne will be received by the Lord Lieutenant, John Bush, before the town's mayor, Cllr Paul Heaphy, will show her around an exhibition in the local library of appreciation gifts received by the town.
Anne will then be driven down the High Street to the stage for the parade and the presentation of the Letters Patent. The town crier, Owen Collier, who has had a new uniform created for the event, will announce her arrival.
The commemoration will then include parades by representatives from the armed forces, accompanied by the Wootton Bassett Band.
Johnathan Bourne, clerk to Wootton Bassett Town Council, said: "I hope that many people will come to share this significant event for the town. A lot of hard work has gone into making this a really special day for the people of Wootton Bassett and I hope everyone enjoys it."