It killed quickly, efficiently, and silently.
Actually, poison gas was not an efficient killer. Poison gas, in its early development, was not a trust-worthy weapon. As it was released into the air from canisters, it needed a wind which would push it towards the enemy's trenches. If the wind was blowing in the wrong direction, it could harm those who were trying to release it. As the gases were denser or heavier than air, it often found itself trapped in shell-holes. It had a great psychological effect on enemy troops in the beginning, as no one had ever used gas before. However, as methods of detecting the gases became more common, and gas masks were developped, it became a rather ineffective weapon. Even once the opposing armies figured out how to put the gas into artillery shells, it was still only effective over a small area. And yes, while it was silent, it could be detected by its colour.
Poison gas and blistered your skin and burned your eyes and that is the reason they wore gas masks
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.
poison gas was considered a war crime to use after ww1
Zyklon B was the poison used in the Auschwitz gas chambers.
mustard gas tear gas poison gas
to poison stuff
Poison gas and blistered your skin and burned your eyes and that is the reason they wore gas masks
poison gas is no longer allowed in warfare.
Poison Arrows was created in 2003.
Poison Girls was created in 1976.
poison
The Poison Tasters was created in 1995.
A Poison Tree was created in 1794.
Say It with Poison was created in 1991.
Poison Heart was created in 1992.
The Poison Belt was created in 1913.
Poison Dust was created in 2005.