Eisenhower's military/industrial complex warning is the most famous, and rightly so, but I think in the current context General Butler lays it down a bit better:
War is a racket ... in which the profits are reckoned in dollars and the losses in lives. It is conducted for the benefit of the very few, at the expense of the very many. Out of war a few people make huge fortunes.
Never has that been truer than right now, when the desire to monopolize control of oil, for both power and profit, is causing the deaths of hundreds of thousands of innocent people. And the troops are viewed much as the turn of the century coal barons viewed their miners: necessary, but expendable, assets. They are to be paid as little as possible, and their lives and health only matter in so far as the bad publicity too many deaths might generate.
Anecdotal stories reinforce the notion of a callous military. Like the soldier who was charged for the body armor that got destroyed when he was wounded. Or those threatened with the loss of death benefits if they wore better body armor. Stories like these may be the exception, and not the rule, but they are common enough to indicate a real problem, a pattern of disdain for the needs of the soldiers doing the actual fighting.
Yesterday Zogby released a poll indicating 72% of the troops in Iraq think we should leave within a year. Being closer to the situation, the truths of the war are more obvious to them, despite the indoctrination they receive.