They are of course aware of a higher calling, because they are sworn to defend this country and to fight its battles. And when the drum sounds, they're going to come out fighting. And when it does sound, the hearts of a thousand loved ones miss a beat, and the guys know this as well as anyone. But for them, duty and commitment are stronger than anyone's aching heart. And those highly trained warriors automatically pick up their rifles and ammunition and go forward to obey the wishes of their commander in chief. Pg. 55