Most countries have outlawed these weapons
Weapons that have uncontrollable effects or cause unjustifiable suffering are banned from being used in war. These weapons are so insidious that more than 115 nations have signed The Convention on Certain Conventional Weapons (CCW) also known as the Inhumane Weapons Convention.
Despite the CCW and various other treaties that prohibit these weapons, some countries continue to use them. This video shows the types of weapons that are illegal under the CCW and why.