Officially known as the Third Battle of Ypres, Passchendaele became infamous not only for the scale of casualties, but also for the mud. Ypres was the principal town within a salient (or bulge ...

Combat was hard and bloody. Soldiers drowned in the mud. During the infamous Battle of Passchendaele, the third major conflict at Ypres, more than 500,000 soldiers were killed. An enormous cost ...