A barrage is also a coordinated artillery tactic in which the fire of a number of guns is sequenced so as to create a continuous bombardment of a target area. The origin of the phrase dates from only a few years past Webby; in 1916 the French phrase tir de barrage ("barrier fire") was coined to describe this use of artillery. Originally, these bombardment areas were intended to serve as a barrier (barrage) to enemy movement; later, the term came to mean any continuous bombardment. Various types of barrage, including continuous barrage, the creeping barrage and the lifting barrage were used in World War I in various attempts to break the trench warfare stalemate.