Marching to the war memorial on the high street, they are marking the 100th year since the signing of Armistice.
There will be around 90 service personnel taking part in the parade, 30 men and women from each service department will be attending.
Cllr Nick Worth, executive member for culture and heritage, Lincolnshire County Council, said, “It’s vital we never forget the sacrifices made – both on the frontline and here in Lincolnshire.”
A service will be held at the cenotaph in Lincoln High Street where a two-minute silence will take place at 11am.
Station Warrant Officer Phil Major, a parade participant and the individual responsible for the events drill and ceremonial training said, “It’s an honour to be taking part in the Armistice 100 Parade. As this year sees the 100th Anniversary of armistice, this will be a much larger event incorporating all three military services.”
On Sunday, people from around the world will reflect on the millions of lives lost from the First World War, Lincolnshire alone lost more than 18,000 people.
Officer Major, said, “It is an opportunity to remember those who have died in conflict since the beginning of the First World War.”
It is expected that there will be a greater turn out this year as it is the centenary.
Gina Edwards, Spokeswoman for the Royal British Legion, said, “We are expecting big crowds and are very thankful for everyone who comes to pay their respects.”
Ms Edwards, said, “It is a really special year on a event which changed our lives.”
The parade begins at 10.40am Sunday, November 11, at St Martins Square.
Following the Act of Remembrance and Parade, the Armistice Centenary Bell Ringing starts at 12.30pm as a part of a nationwide act of remembrance.
Concluding the day with the We Will Remember concert, where the Cathedral Choir will sing at 3.45pm.
The Museum of Lincolnshire Life will also open their doors on Sunday for the public to view and reflect upon the history, from 10am to 4pm.
Many events will take place throughout Lincolnshire over the weekend, from art to air displays.
All events are free to attend and run from 10am to 4pm, so everyone can pay their respects.
The annual parade event is organised by the City of Lincoln Council with support from the Royal British Legion.
To purchase your own poppy and donate to the Royal British Legion follow the link: https://www.poppyshop.org.uk/ or call 0300 123 9110.