The Circuit des Champs de Bataille (the Tour of the Battlefields) was held in 1919, less than six months after the end of the First World War. It covered 2000 kilometres and was raced in appalling conditions across the battlefields of the Western Front, otherwise known as the Zone Rouge. The race was so tough that only 21 riders finished, and it was never staged again. With one of the most demanding routes ever to feature in a bicycle race, and plagued by appalling weather conditions, the Circuit des Champs de Bataille was beyond gruelling, but today its extraordinary story is largely forgotten. The rediscovered story of the Circuit des Champs de Bataille is an epic tale of human endurance, suffering and triumph over extreme adversity.