Firebombing is a bombing technique designed to damage a target, generally an urban area, through the use of fire, caused by incendiary devices, rather than from the blast effect of large bombs. In popular usage, any act in which an incendiary device is used to initiate a fire is often described as a "firebombing". This article is concerned with aerial incendiary bombing as a military tactic; for non-military (almost always criminal) acts, see arson.