Gone were the days of stagnant trench warfare or where armies ... While submachine guns were introduced during World War I, their use in that war was very limited. It was World War II where ...

We all know the stories of the horror of trench warfare in the First World War. Waves of soldiers clambering out of their trenches into a hail of gunfire and nests of barbed wire strewn across ...

The US Army's early attempt to create an armored vehicle fell short. See images of the flawed but influential Holt hybrid tank.

They were ignored and no guns were fired on Christmas Day ... soldiers on both sides returned to life in the trenches. There are even more World War One resources over on BBC Teach.