From Radley Balko at Reason's Hit & Run blog:
The Army is complete and utter totalitarianism. When you enter, you're stripped of all individuality, then built back up into a proper, orders-taking, unquestioning drone. Dissent is punished. At the onset of your career, all facets of your life are dictated to you. Whatever the state orders of you-even if it orders you to your death-you're trained to comply willingly and with vigor, and to never question the validity or morality of the order.