This will take the form of a salute of 100 blank rounds.
The guns will be drawn up by a six horse team next to the flag of each of the Allied countries in turn at the Fort de Seclin, near Lille in France at 10.00 on 10 November 2017.
This will be followed by a Drum Head service of remembrance.
The Eulogy and the Kohima Epitaph will be read, followed by 100 rounds under the command of Retired Master Gunner, Leslie Smith with the Last Post and two minutes silence.
The Road to Passchendaele will be performed by Alan Brydon, the composer who will lead the singing accompanied by Pipe Major Mark Bissett on the bagpipes.