From Bunker Hill and Brandywine down to Pearl Harbor and the fight at Kasserine Pass, the American battle record shows that our own troops are by no means immune to these ill effects, and that our peace time training needs, therefore, always to be reappraised with a critical eye to the main issue. Any of these unsteadying reactions can be prevented, or at least minimized, by training which anticipates the inevitable disorders of battle--including those who are of material sort as well as the disorders of the mind--and acclimates men to the realities of the field in war. All may be averted if leadership is braced to the shock and prepared to exercise strong control. Indeed, it is a truth worthy of the closest regard that the greater number of the disarrangements which take place during combat are due to leadership feeling a tightening of the throat, and a sticking of the palate, and failing to do that which the intellect says should be done. To take any action, when even to think of action is itself difficult, is the essential step toward recovery and the surmounting of all difficulty. It is not because of a babel of mixed voices and commands that military bodies not infrequently relapse into helplessness and stagnation in the face of the enemy. From that cause there may occur an occasional minor dislocation. Their total effect is trivial compared to the failures which come of leadership, at varying levels, failing promptly to exercise authority when nothing else can resolve the situation. Among the commonest of experiences in war is to witness troops doing nothing, or worse, doing the wrong thing, without one commanding voice being raised to give them direction. In such circumstance, any man who has the nerve and presence to step forward and give them an intelligent order in a manner indicating that he expects to be obeyed, will be accepted as a leader and will be given their support. For this reason, under the conditions of modern battle, the coherence of any military body comes not only of men being articulate all down the line but of building up the dynamic power in each individual. It is a thoroughly sound exercise in any unit to give every man a chance to take charge, and give orders in drill, or other limited exercises, once he had learned what the orders mean. By the same token, it is good practice for the junior leader to displace a file in a training exercise, and become commanded for a time, to sharpen his own perspective.