Trench Warfare is a form of attack and defence consisting of trenches dug around the allied area. The trenches provided the soldiers with protection and safety from enemy bullets and artillery, most of the time. The trenches were also a death note for the soldiers in it, all it took was one grenade and lots of soldiers could lose their lives. The average trenches were about 10 feet deep and 15 feet wide at the top, and every few feet the trench would change direction so enemy soldiers could not get into it and shoot all along the trench. Trenches took about 6 hours to construct 250 meters, and on top of that the soldiers had to put sand bags, barbed wire, duck boards, spare guns, ammunition and medical supplies.