Alexander tramped by the side of his men across the dreary waste, sharing all their privations and cheering them by his presence. But before he left the desert of Gedrosia, the king had lost more than a fourth part of the army that had set out with him from India two short months before.

At length the exhausted soldiers reached Susa, and here the king allowed them to rest. He himself found much to do, for many of the satraps whom he had left in charge of different provinces had betrayed their trust. They had treated cruelly those who were in their power, and had formed plots to make themselves kings over their own provinces. It may be that they thought Alexander would never come back from his perilous journey in the East.

When he had punished those who had proved faithless, were they Macedonians or Persians, he turned to a matter on which his heart was set—the union of the peoples of the East and the West.

The king tried to accomplish this in different ways. He had already built cities in the East, and left in them Greeks and Macedonians along with the native Asiatics.

Now he himself wedded Statira, the daughter of Darius, Hephæstion married her sister, while several Macedonian generals, following the example of the king, took the daughters of Persian nobles to be their wives. Many of the soldiers, too, married women of the East.

Alexander hoped that little by little the two races would learn to know each other better and to have the same interests.

In the spring of 324 B.C. Alexander went to Ecbatana, where the Persian kings had been used to spend the summer months. Shortly afterwards he met his whole army at Opis, not far from Babylon, and discharged many of the Macedonian veterans who were no longer fit to fight because of old age or because of the wounds from which they had suffered. The king promised to provide for these old warriors for the rest of their lives. He expected them to welcome their dismissal and their reward.

But the Macedonians had been growing more and more jealous of the favours Alexander had been showing to the Persians, and now the feelings that they had been forced to hide found words.

They bade the king discharge not only the veterans but his loyal Macedonians. Some even dared to shout, ‘Go and conquer with Zeus, your father.’

The king, in sudden anger, sprang from his seat, down among the angry throng, and ordered thirteen of the ring-leaders to be put to death. He then bade the others go away if they wished. They had been only poor shepherds on the hills of Macedon, he reminded them, until his father Philip had made them rulers of Greece. He had shared with them the wealth of the East, and had kept nothing for himself, save his purple robe and his royal diadem.