![These harrowing photos of children and troops in gas masks show the terror of WWI | by Rian Dundon | Timeline These harrowing photos of children and troops in gas masks show the terror of WWI | by Rian Dundon | Timeline](https://miro.medium.com/v2/resize:fit:10200/1*aGugYXJVydarkq4-hAprrQ.jpeg)
These harrowing photos of children and troops in gas masks show the terror of WWI | by Rian Dundon | Timeline
![Millions of Gas Masks Were Made in World War I (and They Were Far From Perfect) | The National Interest Millions of Gas Masks Were Made in World War I (and They Were Far From Perfect) | The National Interest](https://nationalinterest.org/sites/default/files/main_images/Gas%20Masks.jpg)
Millions of Gas Masks Were Made in World War I (and They Were Far From Perfect) | The National Interest
Brook Ledge Horse Transportation - Two soldiers and their mule wearing gas masks in World War One, 1916 . Many animals were used during World War One. Horses, mules, dogs and pigeons
![Gas masks of second world war displayed on street for tourists as souvenir 2548553 Stock Photo at Vecteezy Gas masks of second world war displayed on street for tourists as souvenir 2548553 Stock Photo at Vecteezy](https://static.vecteezy.com/system/resources/thumbnails/002/548/553/small_2x/gas-masks-of-second-world-war-displayed-on-street-for-tourists-as-souvenir-photo.jpg)