Trench warfare. To get under the machine gun fire they had to dig down. Trench foot was the most common ailment for soldiers. It stemmed from the wet conditions found in trenches. Soldiers feet would become wet and lead to sores and blisters. If not treated properly, gangrene could set in and lead for the need to amputate. The Battle of Verdun was one of the longest and longest battles between France and Germany.
