There was a parade from Mesnes Park on Saturday, with crowds lining the streets to see members of the armed forces community, veterans, cadets and a brass band.
It was followed by a concert of armed forces-themed music and acts, military vehicles, stalls, fairground attractions and more.
The annual event is a chance to recognise the efforts of the men and women who make up the armed forces community, from serving troops to service families, veterans and cadets.
1. Armed Forces Day
Eliza White, 11, tries on vintage military kit with Dillon Farnworth, right. Photo: Photographer Michelle Adamson
3. Armed Forces Day
Mia Hitchen in the spirit of the event. Photo: Photographer Michelle Adamson
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