Incendiary bomb

An incendiary bomb (or firebomb) was an explosive device designed to start a fire.

In 1937, Guernica was bombed with incendiaries by the Luftwaffe. (EDA: History 101)

The Dalek supreme command ordered for London to be destroyed with incediary bombs during the 22nd century Dalek invasion. (DW: The Dalek Invasion of Earth)