August 4th 2014 marks 100 years since the outbreak of World War One. Millions of soldiers from Wales and the rest of the UK enlisted to fight in the conflict, which lasted for four years between 1914 and 1918.
Landmarks across Wales will turn out their lights tonight as the UK marks the centenary of the outbreak of the First World War.
Between 10pm and 11pm the lights will be extinguished leaving just a single light or candle burning for a shared moment of reflection.
People across Wales are switching off their lights for an hour this evening and lighting a candle of remembrance.
ITV Wales correspondent Richard Morgan writes about his experience of researching the stories behind those killed in the Great War
All in one place: See some of ITV Wales's reports marking the centenary of the outbreak of the First World War here.