A method of combat in which opposing armies engage in fighting from systems of ditches dug into the ground. These extensive networks, often complex and fortified, provided soldiers with protection from enemy fire while allowing them to maintain a defensive position. A primary characteristic of this form of combat is the relative stalemate that often resulted, with neither side able to achieve a decisive breakthrough. The Western Front during World War I provides a key example, where a continuous line of these defensive systems stretched for hundreds of miles.
This style of fighting profoundly impacted the course of World War I and subsequent military strategy. It led to unprecedented levels of casualties due to prolonged exposure to harsh conditions, disease, and constant bombardment. The static nature of the front lines also spurred technological advancements, such as improved artillery, chemical weapons, and tanks, in an attempt to overcome the defensive advantage conferred by this system. Its use dramatically altered the scale and nature of modern conflict.
