It is said that the officers were as dissatisfied with the matrimonial schemes of the king as they had been with his plans for further conquest in India; in any case, it is known that on the king’s death there was a general movement among them to get rid of their Persian helpmates. The discontent among the rank and file of Alexander’s followers with his program of social equality between Greek and Persian could not be appeased, even when he paid their debts at the time of the “Union of the Two Races” festival, an act of bounty which cost him about $5,000,000. The hostility to Persian influence was accentuated by the introduction of foreign troops into the army. This was naturally a step required by the necessity of raising a force greater than Greece could possibly supply. That thinly populated country must have been already drained to the point of exhaustion by the demands already made upon it to fill up the losses during the years of constant campaigning. And as a matter of fact, we know that a year and a half after the passage of the Hellespont with 35,000 men, Alexander led to battle at Arbela about 60,000, and in the years during which the expedition was moving in the Far East, the various additional troops must have equaled altogether 50,000 men. The substitution of Persian contingents for Greek soldiers was a matter of plain necessity. They received lower pay, they cost less to feed, without considering the saving made in the high cost of transportation of bodies of men from continental Greece to the interior of Asia. Orders had therefore been given to draw 30,000 young men from the conquered provinces and to prepare them for military services according to Macedonian methods. A further and more radical stage in the amalgamation policy was reached when Persians were enrolled in the Macedonian phalanx and Asiatic horsemen in the élite regiment of the Hetæroi; even in the life guards distinguished Persians were received, and the command of that force was assigned to a warrior from Bactria, Hystaspes.