Three weeks before the Big Push of July 1st -- as the Battle of the Somme has been called -- started, exact duplicates of the German trenches were dug about thirty kilos behind our lines. The layout of the trenches were taken from aeroplane photographs submitted by the Royal Flying Corps. The trenches were correct to the foot; they showed dugouts, saps, barbed wire defences, and danger spots.
Battalions that were to go over in the first waves were sent back for three days to study these trenches, engage in practice attacks, and have night maneuvers. Each man was required to make a map of the trenches and familiarize himself with the names and location of the parts his battalion was to attack.
In the American army non-commissioned officers are put through a course of map making or road sketching, and during my six years' service in the United States Cavalry, I had plenty of practice in this work, therefore mapping these trenches was a comparatively easy task for me. Each man had to submit his map to the Company Commander to be passed upon, and I was lucky enough to have mine selected as being sufficiently authentic to use in the attack.
No photographs or maps are allowed to leave France, but in this case it appealed to me as a valuable souvenir of the Great War and I managed to smuggle it through. At this time it carries no military importance as the British lines, I am happy to say, have since been advanced beyond this point, so it has been reproduced in this book without breaking any regulation or cautions of the British Army.
The whole attack was rehearsed and rehearsed until we heartily cursed the one who had conceived the idea.
The trenches were named according to a system which made it very simple for Tommy to find, even in the dark, any point in the German lines.
These imitation trenches, or trench models, were well guarded from observation by numerous allied planes which constantly circled above them. No German aeroplane could approach within observing distance. A restricted area was maintained and no civilian was allowed within three miles, so we felt sure that we had a great surprise in store for Fritz.
When we took over the front line we received an awful shock. The Germans displayed signboards over the top of their trench showing the names that we had called their trenches. The signs read "Fair," "Fact," "Fate," and "Fancy" and so on, according to the code names on our map. Then to rub it in, they hoisted some more signs which read, "When are you coming over?" or "Come on, we are ready, stupid English."
It is still a mystery to me how they obtained this knowledge. There had been no raids or prisoners taken, so it must have been the work of spies in our own lines.
Three or four days before the Big Push we tried to shatter Fritz's nerves by feint attacks, and partially succeeded as the official reports of July 1st show.