Cf. III. § 13 (1).
29. 知敵之可擊知吾卒之可以擊而不知地形之不可以戰勝之半也
If we know that the enemy is open to attack, and also know that our men are in a condition to attack, but are unaware that the nature of the ground makes fighting impracticable, we have still gone only halfway towards victory.
I may take this opportunity of pointing out the rather nice distinction in meaning between 擊 and 攻. The latter is simply “to attack” without any further implication, whereas 擊 is a stronger word which in nine cases out of ten means “to attack with expectation of victory,” “to fall upon,” as we should say, or even “to crush.” On the other hand, 擊 is not quite synonymous with 伐, which is mostly used of operations on a larger scale, as of one State making war on another, often with the added idea of invasion. 征, finally, has special reference to the subjugation of rebels. See Mencius, VII. 2. ii. 2.
30. 故知兵者動而不迷舉而不窮
Hence the experienced soldier, once in motion, is never bewildered; once he has broken camp, he is never at a loss.
The reason being, according to Tu Mu, that he has taken his measures so thoroughly as to ensure victory beforehand. “He does not move recklessly,” says Chang Yü, “so that when he does move, he makes no mistakes.” Another reading substitutes 困 for 迷 and 頓 for 窮. The latter variant only is adopted by the T‘ung Tien and Yü Lan. Note that 窮 here means “at the end of his mental resources.”
31. 故曰知彼知己勝乃不殆知地知天勝乃可全
Hence the saying: If you know the enemy and know yourself, your victory will not stand in doubt;
Capt. Calthrop makes the saying end here, which cannot be justified.
if you know Heaven and know Earth,
天 and 地 are transposed for the sake of the jingle between 天 and 全. The original text, however, has 知天知地, and the correction has been made from the T‘ung Tien.
you may make your victory complete.
As opposed to 勝之半, above. The original text has 勝乃不窮, the corruption being perhaps due to the occurrence of 不窮 in the preceding sentence. Here, however 不窮 would not be synonymous with 不困, but equivalent to 不可以窮 “inexhaustible,” “beyond computation.” Cf. V. § 11. The T‘ung Tien has again supplied the true reading. Li Ch‘üan sums up as follows: 人事天時地利三者同知則 百戰百勝 “Given a knowledge of three things—the affairs of man, the seasons of heaven and the natural advantages of earth—, victory will invariably crown your battles.”
XI. 九地篇
THE NINE SITUATIONS.
Li Ch‘üan is not quite right in calling these 勝敵之地. As we shall see, some of them are highly disadvantageous from the military point of view. Wang Hsi more correctly says: 用兵之地利害有九也 “There are nine military situations, good and bad.” One would like to distinguish the 九地 from the six 地形 of chap. X by saying that the latter refer to the natural formation or geographical features of the country, while the 九地 have more to do with the condition of the army, being 地勢 “situations” as opposed to “grounds.” But it is soon found impossible to carry out the distinction. Both are cross-divisions, for among the 地形 we have “temporising ground” side by side with “narrow passes,” while in the present chapter there is even greater confusion.
1. 孫子曰用兵之法有散地有輕地有爭地有交地有衢地有重地有圮地有圍地有死地
Sun Tzŭ said: The art of war recognises nine varieties of ground: (1) Dispersive ground; (2) facile ground; (3) contentious ground; (4) open ground; (5) ground of intersecting highways; (6) serious ground; (7) difficult ground; (8) hemmed-in ground; (9) desperate ground.
2. 諸侯自戰其地者爲散地
When a chieftain is fighting in his own territory, it is dispersive ground.
So called because the soldiers, being near to their homes and anxious to see their wives and children, are likely to seize the opportunity afforded by a battle and scatter in every direction. “In their advance,” observes Tu Mu, “they will lack the valour of desperation, and when they retreat, they will find harbours of refuge.” The 者, which appears in the T‘u Shu, seems to have been accidentally omitted in my edition of the standard text.
3. 入人之地而不深者爲輕地
When he has penetrated into hostile territory, but to no great distance, it is facile ground.
Li Ch‘üan and Ho Shih say 輕於退也 “because of the facility for retreating,” and the other commentators give similar explanations. Tu Mu remarks: 師出越境必焚舟梁示民無返顧之心 “When your army has crossed the border, you should burn your boats and bridges, in order to make it clear to everybody that you have no hankering after home.” I do not think that “disturbing ground,” Capt. Calthrop’s rendering of 輕地, has anything to justify it. If an idiomatic translation is out of the question, one should at least attempt to be literal.
4. 我得則利彼得亦利者爲爭地
Ground the possession of which imports great advantage to either side, is contentious ground.
I must apologise for using this word in a sense not known to the dictionary, i.e. “to be contended for”—Tu Mu’s 必爭之地. Ts‘ao Kung says: 可以少勝衆弱勝强 “ground on which the few and the weak can defeat the many and the strong,” such as 阨喉 “the neck of a pass,” instanced by Li Ch‘üan. Thus, Thermopylae was a 爭地, because the possession of it, even for a few days only, meant holding the entire invading army in check and thus gaining invaluable time. Cf. Wu Tzŭ, ch. V. ad init.: 以一擊十莫善於阨 “For those who have to fight in the ratio of one to ten, there is nothing better than a narrow pass.” When 呂光 Lü Kuang was returning from his triumphant expedition to Turkestan in 385 A.D., and had got as far as 宜禾 I-ho, laden with spoils, 梁熙 Liang Hsi, administrator of 涼州 Liang-chou, taking advantage of the death of Fu Chien, King of Ch‘in, plotted against him and was for barring his way into the province. 楊翰 Yang Han, governor of 高昌 Kao-ch‘ang, counselled him, saying: “Lü Kuang is fresh from his victories in the west, and his soldiers are vigorous and mettlesome. If we oppose him in the shifting sands of the desert, we shall be no match for him, and we must therefore try a different plan. Let us hasten to occupy the defile at the mouth of the 高梧 Kao-wu pass, thus cutting him off from supplies of water, and when his troops are prostrated with thirst, we can dictate our own terms without moving. Or if you think that the pass I mention is too far off, we could make a stand against him at the 伊吾 I-wu pass, which is nearer. The cunning and resource of 子房 Tzŭ-fang himself [i.e. 張良] would be expended in vain against the enormous strength of these two positions.” Liang Hsi, refusing to act on this advice, was overwhelmed and swept away by the invader. [See 晉書, ch. 122, fol. 3 r^o, and 歴代紀事年表, ch. 43, fol. 26.]
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