André Geraque Kiffer 
British Battle Of Cambrai, 1917 [PDF ebook] 

In the scenario of the wargame that will be used it was decided not to change the organization for the combat of the Tank Corps, because it is understood to be far ahead of its time a Blitzkrieg and even more, in this case, applying in a 'siege war’. On the other hand, the operational strategic failure in the allocation of resources to the Third Army was corrected due to the reduction of the front and the depth of penetration, as well as the reduction of the objective level, from strategic to tactical. In short, a safe 'laboratory’ for new weapon systems.