During the Battle of Passchendaele (also known as the Third Battle of Ypres) in August and September 1917 he kept a diary of his experiences with trench warfare.
During the intense fighting of the Battle of Passchendaele (also referred to as the Third Battle of Ypres), which occurred in August and September 1917, he recorded his personal account of trench warfare, providing insight into the experiences of soldiers during that time.