Now put your books down…and get your gas masks out. Quietly. Now take them carefully out of their boxes - no, no, Isobel, don't drag at it…you show her how to do it, Margaret, will you.

Ruck marches, never short on pain and misery, become even worse when you combine Arizona’s high temperatures with gas masks and full packs. The photo, posted to the military’s imagery and ...

More than 40 million gas masks were issued. In America there was a gas mask for children that looked like Mickey Mouse, with the character's nose and ears and even a picture of him on the gas filter.