Chemical Weapons??

Napalm - an incendiary

Agent Orange - Weed-Killer

White Phosphorus??

"CHEMICAL REACTION

American forces detonate a device containing white phosphorus in a bid to repel insurgents around the village of Donga in the Korengal Valley, eastern Afghanistan.

White phosphorus (or WP) catches fire when its casing expolodes and it comes into contact with oxygen. It can be detonated in mortar bombs, artillery shells and short-range missiles. Its use as a flammable bomb targeted at people is highly controversial, but it can also be used to produce smoke for concealing troop movements or for identifying targets" - Sunday Times

So US forces under attack used white phosphorus to mark targets. I rather liked the way that latter secion in bold was presented - "but it can also be used" - Fuckin' idiot!!! Making smoke to conceal the movement of troops and for marking targets is the PRIMARY use of white phosphorus munitions.