Poison gas and blistered your skin and burned your eyes and that is the reason they wore gas masks
to poison stuff
poison gas is no longer allowed in warfare.
poison
It was the Germans and it was Chlorine Gas
is a gas that kills people
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.
In the beginning of the war, only the Axis used poison gas (mustard gas was the first kind to be used), but by the end of the war, both sides used poison gas as a weapon.
The common poison gas of WWI was Mustard Gas, a combination of Sulfur and Chlorine (C4H8Cl2S).
Poison gas is brought into WWI by the Germans. Both sides used gas, although the Germans were the first to use poison gas
poison gas was considered a war crime to use after ww1