The western front in world war i was an example of a war of attrition. this means that

The western front during the first world war was an example of a war of attrition. By definition, a war of attrition is a strategy that is used to "wear down" the enemy until their resources get insufficient so that they could now advance the front. In fact, during the Western Front, both the British and its allies and the opposing Germany uses the military tactic.