The trenches were places where a lot of soldiers died during The First World War. Gases were dropped into the enemy trenches trying to kill them without getting in to the battle.
Both sides protected themselves with masks and animals (like dogs and mules) were protected too.
Some weapons were reinvented to use in these trenches:
1.- Periscope fusil
2.-Fusil with a shield
3.- Grenade launcher with a kind of crossbow.
Edited by: Alberto Royo
Posted by: Ángel Getán