Shortly afterwards there came to him a Hellene from Thessaly, with a similar request. In his country, the party of which he was leader found itself hard pushed by the opposing faction, and he also desired to raise an army by means of which he and his friends might again have the upper hand. He asked Cyrus to let him have as much money as would enable him to hire 2,000 men for three months. ‘I will give you gold enough,’ said Cyrus, ‘to hire 4,000 men for six months, on condition that you prolong the quarrel with your enemies until I send for you.’ Other requests of a similar kind were also granted by Cyrus, always with an intimation that he might require the troops later on for his own service. And thus he secretly collected a force of Hellenes which he kept employed in other undertakings, but ready to come to him when he should want them. Meanwhile he was careful not to neglect any means of improving the Barbarian soldiers of his provinces, and this could be done openly, for it was part of his duty as satrap to practise the troops in all kinds of military exercises calculated to increase their efficiency. All this time the Great King was constantly sending spies to Sardis to find out what his brother was doing, but on their return the spies invariably reported that they had seen nothing that could be regarded as suspicious. The fact was that Cyrus knew so well how to make himself agreeable to the spies, that although they reached Sardis as the friends of the King, they always became, before leaving it, the friends of Cyrus. Every step that he took was weighed by Cyrus with the utmost caution; every difficulty that was likely to present itself on the road to Susa was considered carefully and deliberately, in order to ascertain the best means of overcoming it. No feeling of impatience was allowed to urge him on to any rash or premature action. At last, three years after his return from the court, he judged that the preparations were sufficiently advanced, and that the time had come when he might venture to call in the companies of Hellene mercenaries from their various services, and also assemble his Persian troops. Even now however he took care not to disclose the real object of the campaign. For had he announced his intention of marching against Susa, the Great King would have been at once put upon his guard, and moreover he had every reason to fear that the Hellenes would refuse to enter upon the expedition, if they knew how desperate was the venture, and how far it would lead them from their homes. By means of his posts the King could hear in less than a week of what was doing at Sardis, but an army could not march from thence to Susa in less than six months.