In the World War I the European commander discover that the certainly must percolates in the military subconscious which not just technology. When recognized and focuses in the mass of armies itself which caused the problems in the armies soldier in less training and maneuverability which use only in crash with enemy during the wars, which helped stellungskrieg in the first place. The increase of armies decrease the effectiveness of high number less trained soldier of the military which cause of incapable of forcing a decision. The new technology, armor and air power immobile defenseless human mass. The mobility large contingent of cavalry and full complement of motorized and mechanized units, well conditioned infantry for enabling it to wage offensive warfare against larger militaries and letting at decisive battle of annihilation against the enemy. The mass armies packed solidly, corps to corps and elbow to elbow four hundred miles of unbroken front which affect the messages and orders to reach the rear. saeed