The Australian War Memorial will stop work on its Anzac Day preparations on Thursday evening to allow a peace vigil to use the parade ground.
Now in its fourth year, the group will assemble on Mount Ainslie at sunset to raise awareness about other wars that occurred before World War I, such as the Boer wars.
They will carry lanterns down the bush track, passing the Aboriginal war memorial grove, to the Australian War Memorial. There, they will hear songs by the Chorus of Women and stories from members of the group. Organiser Graeme Dunstan said the centenary of Anzac had raised concerns.
''There was a concern about the direction of the Anzac centenary; it seemed like a mighty glorification of war,'' Mr Dunstan said.
''We were interested to find other ways to commemorate the war dead that were much more inclusive.''
Mr Dunstan, a lantern maker, said the procession represented carrying a light thought the darkness of grief.
''We will go down the mountain carrying a light, remembering how the trauma of war has influenced everyone's life,'' he said.
''Everyone's got a story about the effects of war, let's bring them forward. We have tried to create something that wasn't going to end up in a debate about war and peace so much as lead people to find the common ground of lament.''
The group would create a circle on the parade group and invite people to share songs, poetry and personal stories, Mr Dunstan said.
With up to 40,000 people expected for this year's dawn service, war memorial staff will be making final adjustments to equipment as the group gathers.
Mr Dunstan said the war memorial had agreed to suspend light and sound testing to allow the group to hold their commemoration. ''The good thing is the co-operation that's happening now,'' he said.
A blog posting says: ''Sarah Stitt, representing A Chorus of Women, and I were very respectfully received at the office of Dr Brendan Nelson, director of the Australian War Memorial yesterday March 26.
''We had come to discuss the 2014 Anzac eve peace vigil.
''it was smiles all around and Dr Nelson most gracious and welcoming. There was no opposition to the vigil. To the contrary, there was much interest and goodwill.''
Dr Nelson said it was very important the group be able to express its point of view. ''As I have said to Graeme, the entire war memorial is a monument to peace,'' he said. ''We clearly have very significant logistical issues on Anzac Day eve.
Dr Nelson said the group would come down the eastern side of the memorial and onto the parade ground where members would conduct their vigil. The noisiest part of the Anzac Day preparations will cease during that period and the vigil will end no later than 8pm.
''If there is any place in this nation that represents freedom of expression, it must surely be the Australian War Memorial,'' he said.
From 9pm on Thursday, images of the faces of the 40 Australians killed in Afghanistan will be projected on the wall of the war memorial.