The First World War was the first-time poison gas was used on a large scale during war. The gas could affect someone in just a few minutes so protective masks ... soldiers into three possible ...

Ruck marches, never short on pain and misery, become even worse when you combine Arizona’s high temperatures with gas masks and ... over to the S-1 to make sure a junior soldier’s pay issue ...

The First World War was the first-time poison gas was used on a large scale during war. The gas could affect someone in just a few minutes so protective masks were given to all soldiers.