During trench warfare, opposing armies conduct battle, at a relatively close range, from a series of ditches dug into the ground. Trench warfare becomes necessary when two armies face a stalemate, with neither side able to advance and overtake the other. Although trench warfare has been employed since ancient times, it was used on an unprecedented scale on the Western Front during World War I.
Why Trench Warfare in WWI?
In the early weeks of the First World War (late in the summer of 1914), both German and French commanders anticipated a war that would involve a large amount of troop movement, as each side sought to gain or defend territory. The Germans initially swept through parts of Belgium and northeastern France, gaining territory along the way.
