IT WAS the moment when the Christmas spirit broke through the misery and destruction of World War I.
Soldiers from both sides of the trenches began to exchange seasonal greetings and songs over No Man's Land.
Two concerts will take place to recall the remarkable unofficial ceasefire.
The Omagh-Waterford Peace Choir will perform a number of festive carols to honour those on the battlefield who laid down their arms to enjoy song, conversation and even a football match in one of the most extraordinary incidents of the Great War.
The choir emerged following the 1998 Omagh Bombing.
This is the third year the event has taken place. Organiser Don Mullen said the idea was partly inspired by a Dublin soldier named James Burke.
'Voices of the 1914 Christmas Truce' will take place in Christ Church Cathedral, Dublin, tomorrow at 8pm. A second concert will be staged in St Columb's Cathedral, Derry, on Sunday at 3.30pm.