of the command and swept forward to a similar success. These two battles of the 1917 Campaign made it clear that the British had solved the general problem of the German defensive, and at the same time they revealed the intimate dependence of victory upon the control of the commanders. In a war that seemed to be given over to mechanics, engineering and physics, that was frequently regarded as a mathematical problem, they showed that leadership is still the paramount factor in the art of warfare.
Such then is the versatility of these leaders. The war has cast upon them the burden of meeting every sort of warfare. They have come triumphantly through the ordeal, winning a grudging praise from the enemy, and the more unmistakeable approval of attempts at imitation. They have shown themselves as resourceful in devising new machines and methods of attack as they are experienced in the orthodox fighting of other days. The war may have new experiences for them, but it cannot daunt or check them. They have seen the worst. They have come through dark places to the approaching light of day. Their record is our best assurance for the future.
