Fear was the terrible secret of the battlefield and could afflict the brave as well as the timid. Worse it was contagious, and could destroy a unit before a battle even began. Because of that, commanders were first and foremost in the fear suppression business.
David HalberstamOne of the things I learned, the easiest of lessons, was that the better you do your job, often going against conventional mores, the less popular you are likely to be.
David Halberstam