Stereocard of no man’s land near Lens, France, during World War I.

Just as I was beginning to forget there were such things as trenches and shrapnel and snipers, they told me a horrible story of two Camerons who got stuck in the mud and sucked down to their shoulders. They took an hour and a half getting one out, and just as they said to the other, “All right, Jock, we’ll have you out in a minute,” he threw back his head and laughed, and in doing so got sucked right under, and is there still. They said there was no sort of possibility of getting him out; it was like a quicksand. …

They told me another story of a man in the Royal Scots who was sunk in mud up to his shoulders, and the officer offered a canteen of rum and a sovereign to the first man who could get him out. For five hours thirteen men were digging for him, but it filled up always as they dug, and when they got him out he died.

— Anonymous, Diary of a Nursing Sister on the Western Front, 1914-1915