Chlorine, mustard gas and tear gas.
They were used for blasting people out of trenches.
they fought in the trenches ww1 was known as a war in the trenches
Canisters of gas was thrown like a grenade, into no mans land or the other sides trenches. Because the gas was denser than the air, it could travel by wind. Although if the wind was pointing towards you then you could gas yourself.
Gas masks were developed to protect from the new gas warfare. Widespread use of trenches. Neither was terribly effective.
Germany
It was used as a weapon during WW1. The gas was packed into artillery shells and shot into the enemy trenches.
Mustard gas is a deadly mix of chemicals that form a gas that goes into your lungs and literally burns you inside out. It was used in the trenches during ww1 but it was never used after that
Barbed wire was used to protect the trenches.
Trenches used in WW1
Chlorine gas was used to drive enemy men out of their trenches in order to make it easier to take the enemy trenches. Even now, it is used to soften up enemy positions.
Gas warfare would have been the warfare conducted by using poisonous gas to clear out trenches during WW1, but even during WW1 when gas was the most common, it still wasn't used excessively as it was viewed as an evil way to fight.
They were used for blasting people out of trenches.
Basically, to shelter troops from enemy attack.
There were electric light in German trenches in WW1 because they were more advanced and had better trenches than the British.
They shot at them, used barbed Wires and lines.
they fought in the trenches ww1 was known as a war in the trenches
Many of the casualties of World War I were due to the use of gas warfare in the trenches.