When trench lines were established, there were a variety of tactics
employed to destroy the line. One method employed sappers who dug
tunnels under no-man's land and set off explosives under or near the
enemy trench. Neither these efforts or massive frontal attacks and week
long bombardments were effective. In 1915 , the British and French High commands concluded that the
trench stalemate could only be broken by mass attacks. The British and French had noted
that their Asian ally, Japan, had successfully employed this strategy in
the Pacific, but proved relatively ineffective against German trenches when gains were measured in short feet and yards.
Today we go into a Rest Camp some miles from here. It will be a pleasant change, although I should like a few more nights here as I have a job to finish. Last night I and a Sergeant (an exMetropolitan Police Force man) went out to the German lines. We crawled out slowly, listening, and got right up to the German parapet and reconnoitred their wire. Apparently they are starting a most elaborate system of wire defence. The part we were opposite was completed and I was dying to go tonight and find out details and especially how far the new system went and if they were working on it now.