""The Attack of the British Ninth Corps at Messines Ridge (1917)"" is a historical book published by the War Department. The book provides a detailed account of the Battle of Messines Ridge, which took place during World War I. The Battle of Messines Ridge was a major offensive launched by the British Army against the German Army in June 1917. The book covers the planning and execution of the attack, as well as the tactics used by both sides during...