Incendiary devices are tools designed to start fires or cause explosions. They can include items like Molotov cocktails, firebombs, and smoke grenades. These devices are often used in military operations, arson, or civil disturbances to create chaos or destruction. The construction of incendiary devices typically involves flammable materials and a means of ignition. They can vary in complexity, from simple homemade versions to sophisticated military-grade equipment. Due to their potential for harm, the use and possession of incendiary devices are heavily regulated in many countries.