Personnel from RAF Leeming will be parading through Ripon to mark the 75th anniversary of the Battle of Britain.
The parade, which is also be held to celebrate the North Yorkshire base being granted the Freedom of the City, will be followed by a service in Ripon Cathedral which is open to members of the public.
The parade starts at Spa Gardens at 10:15am.
Lights, splashes of colour, and lots of imagination aare brightening the lives of service families in North Yorkshire.
At RAF Leeming, near Bedale, they've created a special room where children can escape the challenges of military life.
The Imaginarium is the first of its kind in the Air Force and it is billed as a space where imaginations can run wild and friendships blossom.
As well as boasting a huge interactive screen, there are themed areas and lights for young children or those with additional needs to relax.
There is also space to hold singing and dancing groups.
It has been funded by charity events and a donation from the RAF Benevolent Fund,
Military aircrew from as far afield as Australia and the Czech Republic are in North Yorkshire as part of an exercise to prepare British crews for war.
Royal Air Force helicopters and fast jets are involved in the training at RAF Leeming, where pilots are gaining advanced skills in air warfare.
The base was chosen because it is close to the North Sea and training areas like Otterburn.
The Duchess of Cornwall, who is an Honorary Air Commodore, is visiting RAF Leeming, where she officially opened the new station medical centre.
HRH The Duchess of Cornwall has met with staff and patients from RAF Leeming on a visit to the North Yorkshire air base to open its news £4.9m medical centre.
Children from Leeming RAF Primary School prepare to welcome HRH The Duchess of Cornwall as she visits the North Yorkshire air base to open its news £4.9m medical centre.
RAF top guns are teaming up with their French counterparts to spearhead a major military exercise from RAF Leeming in North Yorkshire.
The 11-day event sees aircraft from Britain, France, the United States, Canada and Germany taking part in a UK wide training exercise.
The Band of the RAF Regiment have lead a homecoming parade at RAF Leeming.
Around 70 personnel from 34 Squadron RAF Regiment are expected to be presented with medals.