Compare the paradoxical saying 亡者存之基死者生之本. These words of Sun Tzŭ were once quoted by Han Hsin in explanation of the tactics he employed in one of his most brilliant battles, already alluded to on p. 28, In 204 B.C., he was sent against the army of Chao, and halted ten miles from the mouth of the 井陘 Ching-hsing pass, where the enemy had mustered in full force. Here, at midnight, he detached a body of 2000 light cavalry, every man of which was furnished with a red flag. Their instructions were to make their way through narrow defiles and keep a secret watch on the enemy. “When the men of Chao see me in full flight,” Han Hsin said, “they will abandon their fortifications and give chase. This must be the sign for you to rush in, pluck down the Chao standards and set up the red banners of 漢 Han in their stead.” Turning then to his other officers, he remarked: “Our adversary holds a strong position, and is not likely to come out and attack us until he sees the standard and drums of the commander-in-chief, for fear I should turn back and escape through the mountains.” So saying, he first of all sent out a division consisting of 10,000 men, and ordered them to form in line of battle with their backs to the River 泜 Ti. Seeing this manœuvre, the whole army of Chao broke into loud laughter. By this time it was broad daylight, and Han Hsin, displaying the generalissimo’s flag, marched out of the pass with drums beating, and was immediately engaged by the enemy. A great battle followed, lasting for some time; until at length Han Hsin and his colleague 張耳 Chang Ni, leaving drums and banner on the field, fled to the division on the river bank, where another fierce battle was raging. The enemy rushed out to pursue them and to secure the trophies, thus denuding their ramparts of men; but the two generals succeeded in joining the other army, which was fighting with the utmost desperation. The time had now come for the 2000 horsemen to play their part. As soon as they saw the men of Chao following up their advantage, they galloped behind the deserted walls, tore up the enemy’s flags and replaced them by those of Han. When the Chao army turned back from the pursuit, the sight of these red flags struck them with terror. Convinced that the Hans had got in and overpowered their king, they broke up in wild disorder, every effort of their leader to stay the panic being in vain. Then the Han army fell on them from both sides and completed the rout, killing a great number and capturing the rest, amongst whom was King 歇 Ya himself.... After the battle, some of Han Hsin’s officers came to him and said: “In the _Art of War_ we are told to have a hill or tumulus on the right rear, and a river or marsh on the left front. [This appears to be a blend of Sun Tzŭ and T‘ai Kung. See IX. § 9, and note.] You, on the contrary, ordered us to draw up our troops with the river at our back. Under