How was Poison Gas used in the Civil War?
G’day TBQ72593, Thank you for your question. It wasn’t assuming you mean the US Civil War. Poison gas was used during World Wae I despite conventions against its use. The Geneva Protocol came into effect in 1929 banning the use of chemical weapons and bacteria. It has been largely adhered to with the use of it in the Iran-Iraq war being the most notable exception. I have attached a source for your reference.
