A barrage is a term used to describe extensive artillery fire against enemy positions. Barrages were classified as light, moderate or heavy. A light barrage amounted to six or seven shells every ten minutes. A moderate barrage was thirty shells a minute and a heavy one, fifty to sixty shells a minute. There were several different types of barrage used during the First World War.

Box Barrage: artillery fire aimed around a target area to prevent the enemy command from sending in reinforcements.

Pin-Point Barrage: an attempt to wipe out a machine-gun post or a deadly sniper.

Search Barrage: using reports from aerial observers and spies on the ground to destroy important targets such as army headquarters, ammunition stores or opposing artillery batteries.

Counter-Battery Barrage: artillery fire targeted against enemy guns.