Authority: When you will survive if you fight quickly and perish if you do not, this is called [death] ground…. Put them in a spot where they have no place to go, and they will die before fleeing. If they are to die there, what can they not do? Warriors exert their full strength. When warriors are in great danger, then they have no fear. When there is nowhere to go, they are firm, when they are deeply involved, they stick to it. If they have no choice, they will fight. —The Art of War, Sun-tzu (fourth century B.C.)
