Then Achilles was sorry that he had sworn not to fight himself till Hector brought fire to his own ships. He would lend Patroclus his armour, and his horses, and his men; but Patroclus must only drive the Trojans from the ships, and not pursue them. At this moment Aias was weary, so many spears smote his armour, and he could hardly hold up his great shield, and Hector cut off his spearhead with the sword; the bronze head fell ringing on the ground, and Aias brandished only the pointless shaft. So he shrank back and fire blazed all over his ship; and Achilles saw it, and smote his thigh, and bade Patroclus make haste. Patroclus armed himself in the shining armour of Achilles, which all Trojans feared, and leaped into the chariot where Automedon, the squire, had harnessed Xanthus and Balius, two horses that were the children, men said, of the West Wind, and a led horse was harnessed beside them in the side traces. Meanwhile the two thousand men of Achilles, who were called Myrmidons, had met in armour, five companies of four hundred apiece, under five chiefs of noble names. Forth they came, as eager as a pack of wolves that have eaten a great red deer and run to slake their thirst with the dark water of a well in the hills. So all in close array, helmet touching helmet and shield touching shield, like a moving wall of shining bronze, the men of Achilles charged, and Patroclus in the chariot led the way. Down they came at full speed on the flank of the Trojans, who saw the leader, and knew the bright armour and the horses of the terrible Achilles, and thought that he had returned to the war. Then each Trojan looked round to see by what way he could escape, and when men do that in battle they soon run by the way they have chosen. Patroclus rushed to the ship of Protesilaus, and slew the leader of the Trojans there, and drove them out, and quenched the fire; while they of Troy drew back from the ships, and Aias and the other unwounded Greek princes leaped among them, smiting with sword and spear. Well did Hector know that the break in the battle had come again; but even so he stood, and did what he might, while the Trojans were driven back in disorder across the ditch, where the poles of many chariots were broken and the horses fled loose across the plain.