Charles Delvert's diary records his career as a front-line officer in the French army fighting the Germans during the First World War.
It is one of the classic accounts of the war in French or indeed in any other language, and it has not been translated into English before.
In precise, graphic detail he sets down his wartime experiences and those of his men.
He describes the relentless emotional and physical strain of active service and the extraordinary courage and endurance required in battle.
His account is essential reading for anyone who is keen to gain a direct insight into the Great War from the French soldier's point of view, and it bears comparison with the best-known English and German memoirs and journals of the Great War.