β
17.Β According as circumstances are favorable, one should modify oneβs plans. [Sun Tzu, as a practical soldier, will have none of the βbookish theoric.β He cautions us here not to pin our faith to abstract principles; βfor,β as Chang Yu puts it, βwhile the main laws of strategy can be stated clearly enough for the benefit of all and sundry, you must be guided by the actions of the enemy in attempting to secure a favorable position in actual warfare.β On the eve of the battle of Waterloo, Lord Uxbridge, commanding the cavalry, went to the Duke of Wellington in order to learn what his plans and calculations were for the morrow, because, as he explained, he might suddenly find himself Commander-in-chief and would be unable to frame new plans in a critical moment. The Duke listened quietly and then said: βWho will attack the first tomorrowβI or Bonaparte?β βBonaparte,β replied Lord Uxbridge. βWell,β continued the Duke, βBonaparte has not given me any idea of his projects; and as my plans will depend upon his, how can you expect me to tell you what mine are?β75] 18.Β All warfare is based on deception. [The truth of this pithy and profound saying will be admitted by every soldier. Col. Henderson tells us that Wellington, great in so many military qualities, was especially distinguished by βthe extraordinary skill with which he concealed his movements and deceived both friend and foe.β] 19.Β
β
β