The Battle Book of Ypres: A Reference to Military Operations in the Ypres Salient 1914-18

Of the many hard-fought battles on the Western Front, Ypres stands out as an example of almost inhuman endeavor. For four long years it was the focal point of desperate fighting. Officially there were four main battles in 1914, 1915, 1917 and 1918; these were more accurately peaks in a continuing struggle, for Ypres symbolized Belgian defiance, and the British continued to expend disproportionate resources on defending it. It never fell, although the Germans came close to its gates, and indeed its loss would have been a severe blow to morale.