Though they are usually responsible, these sergeants major created their own hell in Arizona when they donned gas masks and ...

In all, more than 500,000 tons of chemical gas agents were used in World War I. Some 500,000 troops were injured and some 30,000 died, including 2,000 American troops.

The gas could affect someone in just a few minutes so protective masks were given to all soldiers. Many soldiers suffered from the effects of gas attacks for the rest of their lives. The poet ...

though he added that the use of ordinary gas masks is sufficient protection for the soldiers being targeted. Newsweek could not independently verify the report and has contacted the Russian ...