Kettering and Corby residents are being urged to cheer on 200 marching soldiers from the Royal Anglians when the regiment visits the two towns on Monday.
The regiment has been granted the freedom of both boroughs, which gives it the right to organise marches.
The first march of the day takes place in Corby.
About 200 soldiers, including a military band, will make their way from the West Glebe Park pavilion, leaving at about 11.40am, and will march up Elizabeth Street, along Alexandra Road and George Street to James Ashworth VC Square.
At the end of the march there will be a short ceremony and a reception is being held for the troops at the Core Theatre.
The Kettering march is expected to start at 3.40pm.
It will begin at the London Road car park, continue past Horsemarket into Silver Street, and then continue along Gold Street, High Street and Sheep Street.
The regiment will halt in Sheep Street in front of a dais erected on the Market Place for civic dignitaries, where speeches will be given.
The march will then resume along Sheep Street into Bowling Green Road and conclude at the London Road car park at about 4.20pm. The mayor will also host a reception at the Kettering Conference Centre.
Corby mayor Anthony Dady said: “This will be a historic moment for the borough.
“It will be something that visually and emotionally will make an impact and something that we should take pride in celebrating.
“The freedom of the borough is the highest honour we can bestow on the regiment and shows our support and appreciation to the brave men and women who fight for our country.”
Kettering mayor Duncan Bain said: “This is a historic event for our borough and I should very much like to see hundreds of people lining the route of the march on Monday, cheering and publicly demonstrating their support for our soldiers in recognition of the difficult tasks they undertake, often with great personal sacrifice.”
Major Bill O’Driscoll of the Royal Anglian Regiment said: “Firstly, to be granted the freedom of the borough is a great honour, and to be given the chance to exercise that with the homecoming march on Monday is indeed the highest honour of them all.
“We appreciate the support of the people in Kettering and Corby and the surrounding area and we hope to see that support.”
Motorists are reminded there will be road closures during both events.