The words of Harry Patch, the last WWI veteran (he too is now dead)
The War in Harry Patch's Words
The trenches were about six feet deep, about three feet wide - mud, water, a duckboard if you were lucky. You slept on the firing step, if you could, shells bursting all around you. From the time I went to France - the second week in June 1917 - until I left 23rd December 1917, injured by shellfire, I never had a bath. I never had any clean clothes.
You daren't show above [the trench] otherwise a sniper would have you.
That is another thing with shell shock - I never saw anyone with it, never experienced it - but it seemed you stood at the bottom of the ladder and you just could not move. Shellshock took all the nervous power out of you. An officer would come down and very often shoot them as a coward. That man was no more a coward than you or I. He just could not move. That's shell shock. Towards the end of war they recognised it as an illness. The early part of the war - they didn't. If you were there you were shot.
Rats as big as cats. Anything they could gnaw, they would - to live. ... As you went to sleep, you would cover your face with a blanket and you could hear the damn things run over you.
He was laying there in a pool of blood. As we got to him, he said, 'Shoot me.' He was beyond all human aid. Before we would pull out the revolver to shoot him, he died. ... And when that fellah died, he just said one word: 'Mother.' It wasn't a cry of despair. It was a cry or surprise and joy. I think - although I wasn't allowed to see her - I am sure his mother was in the next world to welcome him. ... And from that day until today - and now I'm nearly 106 years old - I shall always remember that cry and I shall always remember that death is not the end.
[Excerpts above from: Duke of Cornwall's Light Infantry Website ]