" Those men and women were not press-ganged into service. It was not just a choice for them. It was and remains a calling. And sir, no nation on earth can hope to survive long without people who will answer that call. No nation can hope to survive if it does not respect what they have offered and do the hard things that history sometimes asks of us. Sometimes, Mister President, there is no answer but blood. "

― John Birmingham , After America (The Disappearance, #2)