The term "creeping barrage" is used to describe a military tactic in which artillery fire moves slowly forward, creating a protective wall of explosions that screens troops advancing towards the enemy trenches. However, there are several synonyms that also convey similar military tactics, such as rolling barrage, crawl barrage or walking barrage. These terms all describe a barrage that moves slowly and methodically, allowing troops to advance behind it without being exposed to enemy fire. Other similar terms include the saturation barrage, box barrage, and curtain fire, all of which describe different types of artillery barrages used to support advancing troops. While each term may have slightly different nuances, they all represent the same basic tactic of using artillery to provide a protective screen for troops on the move.