Irish President Michael D Higgins and the Duke of Kent will today officially unveil the first Cross of Sacrifice ever erected in the Irish Republic to commemorate those who died in the two world wars.
The memorial to as many as 60,000 Irishmen and women killed in combat will stand in Dublin's Glasnevin Cemetery, the country's largest burial ground and resting place to many of the state's founding fathers.
It is the latest milestone in the recent official recognition of Irish citizens who fought in the wars, who for decades were forgotten, pilloried and blacklisted for joining the British armed forces.
As the Lights Out event to remember those who fought and died in WWI happened last night ITV asked our viewers what they did to take part.
Lights on some of Britain's most famous landmarks were extinguished between 10pm and 11pm to remember those who died in WWI.