He soon began experimenting with chlorine gas to be used in trench warfare. Trump 2nd term live updates: 10% of NASA’s workforce has been laid off, sources say ‘In real life, a lot of that pie ...

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.

Remember, chin in, right in first, before you begin to pull the straps ... then I want to see just how long you can sit there with your gas masks on. And when you're quite quiet, I'm going to ...