He organized his warriors into squads, or arban, of ten who were to be brothers to one another. No matter what their kin group or tribal origin, they were ordered to live and fight together as loyally as brothers; in the ultimate affirmation of kinship, no one of them could ever leave the other behind in battle as a captive. Like any family of brothers in which the eldest had total control, the eldest man took the leadership position in the Mongol arban, but the men could also decide to chose another to hold this position.
