Behind the lines the German General Staff, counting up the losses of battalions and divisions who staggered out weakly, performed juggling tricks with what reserves it could lay its hands on, and flung up stray units to relieve the poor wretches in the trenches. Many of those reliefs lost their way in going up, and came up late, already shattered by the shellfire through which they passed.

“Our position,” wrote a German infantry officer, “was, of course, quite different from what we had been told. Our company alone relieved a whole battalion. We had been told we were to relieve a company of fifty men weakened by casualties.

“The men we relieved had no idea where the enemy was, how far off he was, or whether any of our own troops were in front of us. We got no idea of our support position until six o’clock this evening. The English are four hundred yards away, by the windmill over the hill.”