This volume covers the years of the big pushes: the costly mistakes of the Somme in 1916, and Third Ypres - the infamous Passchendaele battle - in 1917. The author goes on to describe the successful defensive fighting against the great German offensive of spring 1918; and the Allies' final advance to victory on the Western Front. This is the second of three concise yet fact-filled titles on the British Army of the Great War, detailing organization, uniforms and insignia, weapons and training, leadership and campaign history.