The image may be old, but the pain and regret in that shot ... By having everyone strap a heavy ass pack to their back, don a gas mask, and start rucking in that year’s unseasonably warm Arizona ...

On the back, in the inside, you have hair cover. The old M48 gas mask didn't have this. Female soldiers, they can keep all their hair pretty much contained. Narrator: Recruits are expected to ...

More than 40 million gas masks were issued ... It was given to children aged 18 months to 4 years old to allay their fears about wearing a respirator. It was also made lighter than normal masks ...