"agent orange and other such chemicals"
Please read the whole sentence next time. I'm referring to any number of chemicals we use in warfare. Agent Orange, White Phosphorus, etc. Turns out it's not "chemical warfare" if you "use it for flares" or to "clear a forest". Funny thing is, the body doesn't care why you used it. Agent Orange is traditionally the first time one of these "mystery soldier diseases" appeared. GWS is just the same thing but with a different chemical causing different damage. They're all chemical exposures.
It's really fun when you say "Agent Orange and other chemicals" and someone jumps in to be a know it all and correct you.
I meant what I said. Maybe you should work on your reading comprehension. I purposely brought up a much more well known occurrence of the same thing happening to compare them.