QUOTE (Ken Lees @ Tue, 13 Apr 2004 21:16:12 +0000)
but I believe the system got better as the war went on.
The experience of 2RWF was that it got worse. The army's official doctrine, based on experience, was that 80% replacements for infantry would be needed in the first year of a European war. This was, like many pre-war arrangements, brilliant, within what the politicians would allow. Thus the Reserve and the Special Reserve. Thus the first four very substantial drafts were on their way to 2RWF before any significant fighting: war always finds out the weak and the scrimshankers.
Later in the war, and particularly in 1918 [Lloyd George's malign influence] reinforcements were very tardy in arriving.
But the idea of a trench strength consistently maintained at over a half [say 500 men] was unsustainable for long periods.