Yes. The Geneva Convention bans it, but that's not to say that all countries have signed up to the Convention or that they abide by it.
The use of poisonous gas was only banned after ww1
poison gas was considered a war crime to use after ww1
Poison Gas.
Poison gas and blistered your skin and burned your eyes and that is the reason they wore gas masks
to poison stuff
Leaded gas was banned in California in 1992.
poison gas is no longer allowed in warfare.
BZ is a nerve gas thus banned by the UN
poison
your question lacks detail. some gases are poison, some aren't. depends what gas you are talking about
Halabja poison gas attack happened on 1988-03-16.
It was the Germans and it was Chlorine Gas