David Cameron has paid tribute to the "extraordinary sacrifice" of the First World War generation as Britain commemorates the 100th anniversary of WW1.
PM: It is right to remember extraordinary sacrifice of a generation. We are indebted - their most enduring legacy is our liberty #WW1Aug4
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.