Prince Harry will today unveil a memorial arch in Kent, where many soldiers took their last steps on British soil, to mark the centenary of the First World War.
The prince will also lay a wreath at the event, organised by educational charity Step Short, which was set up to remember the millions of men and women involved in the First World War.
He will then take the salute of a military and civilian parade before walking down the Road of Remembrance, a Kensington Palace spokesman said.
The memorial will take place in Folkestone in Kent, which played an integral part in the Great War as the port to and from the Western Front for millions of men and women.
The spokesman added: "For many it was their last time on British soil before heading to the battlefields of France and Belgium."
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.