A Wildly Unstable Environment
…[The] soldier’s view [on a battlefield] will also be much more complicated than the commander’s. The latter fights his battle in a comparatively stable environment—that of his headquarters, peopled by staff officers who will, because for efficiency’s sake they must, retain a rational calm; and he visualizes the events of and parties to the battle, again because for efficiency’s sake he must, in fairly abstract terms…. The soldier is vouchsafed no such well-ordered and clear-cut vision. Battle, for him, takes place in a wildly unstable physical and emotional environment; he may spend much of his time in combat as a mildly apprehensive spectator, granted, by some freak of events, a comparatively danger-free grandstand view of others fighting; then he may suddenly be able to see nothing but the clods on which he has flung himself for safety, there to crouch—he cannot anticipate—for minutes or for hours; he may feel in turn boredom, exultation, panic, anger, sorrow, bewilderment, even that sublime emotion we call courage….
— John Keegan, The Face of Battle, p. 47
Emphasis mine.