One course was a four-day class on general information about gas warfare and was offered to commissioned and noncommissioned officers.

And second, a lot of Lizards at the front have some protection against gas warfare, and that keeps the ginger out, too.

It was German, too- the Germans knew all about gas warfare, and had been teaching it to the Jews even before the Lizards came.

On 25 April, the Indian Corps had its first full exposure to toxic gas warfare.

Even so, enemy troops can protect themselves against gas warfare.

When gas warfare began in 1915, nose plugs were improvised for the horses to allow them to breathe during attacks.

As to gas warfare, have you checked your human population?

Memories of gas warfare in World War I trenches still cause the strong to shudder.

The crop-dusters represent the most difficult issue because many people associated them with gas warfare.

Subjects ranged from gas warfare to first aid, and classroom instructed was supplemented by field exhibits, movies, and lectures.