The ten month Battle of Verdun, 1916 caused over one million casualties.
There were 4,734,991 US troops involved in the war.
53,402 American people died during the war.
The United States didn't join the war until 1917, even though it started in 1914.
During the course of the war, 11% of Frances population was killed or wounded.
80,000 British troops suffered shell shock.
Was the first war that used toxic gases (mustard gas).
Coffin nails was an expression used by British soldiers to describe cigerettes.
296 US soldiers committed suicide, in the seven months the US was in the war.
1,808,000 German soldiers were killed in four years of the war.
There were 70,000,000 men and women in uniform, half of that number were either killed, wounded, or became prisoners of war.