The major conflict that saw the introduction of trench warfare on the Western Front was World War I. This form of warfare characterized by a network of trenches led to a protracted stalemate, with both sides suffering horrific casualties. The harsh living conditions in the trenches, combined with modern weaponry, resulted in intense psychological and physical suffering among soldiers. The trench system became emblematic of the war's brutality, representing not only the tactical challenges faced by military leaders but also the broader human cost of a conflict that lasted from 1914 to 1918.