This book, first published in 1919, represents a study undertaken by former Royal Artillery Major Archibald Frank Becke on the action fought by General Sir H. Smith-Dorrien and the troops under his command on August 26th, 1914 at Le Cateau—a critical day that proved not only a triumph for the British arms, but had a most important bearing on the whole retreat. The book served to show Officers of the Regiment the use that will be made of their War Diaries, and the nature of the information that is required for historical work, and also to encourage all Officers who were present at the battle to submit any further information that was in their possession. Lastly, Becke intended the book to be of scholarly use.