The first Ottoman army had been composed entirely of Turkmen nomads, who had remained largely under the command of the religious orders that had converted most of them to Islam. Armed with bows and arrows and spears, those nomadic cavalrymen had lived mostly on booty, although those assigned as ghazis to border areas or sent to conquer and raid Christian lands also had been given more permanent revenues in the form of taxes levied on the lands they garrisoned.