The first duty is to sacrifice to the gods and pray them to grant you the thoughts, words and deeds likely to render your command most pleasing to the gods and to bring yourself, your friends and your city the fullest measure of affection and glory and advantage. Having gained the goodwill of the gods, you have then to recruit a sufficient number of mounted men that you may bring the number up to the total required by the law, 1,000; but, as we shall see, the number had fallen to something like 650 at the time Xenophon wrote. and also may prevent any decrease in the cavalry establishment. Unless additional recruits are enrolled in the force, the number will constantly dwindle, for some men are bound to retire through old age and others to drop off for various reasons.