Sun Tzu argues that one must recognize war’s harms to grasp its benefits. Wise generals source weapons at home and seize grain from enemies. Long-distance grain transport drains civilian and national resources severely in wartime.
Sun Tzu argues prolonged warfare wears down troops, drains national resources and invites rival invasions. He insists swift victory is always preferable, for no long war can ever bring lasting benefits to a state.
Han Fei warns: rulers abandoning the Dao become tyrants. Oppression and endless war drain resources, forcing civilian horses into military service.