Incendiary weapons 

Incendiary weapons are designed to set fire to people, vegetation or material in the area they attack.  Incendiary weapons include air-dropped napalm, white phosphorous munitions and flame-throwers.

Incendiary weapons were the subject of public protest in response to their widespread use by the USA in South East Asia during the Vietnam War.

The use of incendiary weapons in combat is regulated by Protocol III to the UN Convention on Conventional Weapons.  The incendiary weapons Protocol distinguishes between those weapons which have creating fire as a ‘primary effect’ (regulated under the Protocol) and those for which creating fire is a secondary effect (not regulated under the Protocol).