Answer:
Trench warfare was a tactic first observed in WWI. The main reason for trenches was to cause a forced stalemate with the enemy. Basically, trench warfare was more of a 'last man standing' victory than an actual combat victory. The area between one trench to another was called No Man's Land, as soldiers that would cross these lines would likely be shot. Every morning, a whistle will be blown by the generals, and the soldiers were supposed to jump out of the trenches and run across the field, firing as they went. When a whistle would blow again in the evening, they would collect their dead and wounded. Conditions in trenches were awful, with sickness spreading fast, and morale decreasing faster. Dead bodies were used as either walls for further reinforcement or as flooring so soldiers would not have to walk on the mud.
