It has been discovered that kondei soldiers were later included in the cohort system once the cohorts were revived, and subsequently, a special tax exemption system called kondei-den was established in order to maintain kondei, and approximately 3,600 kondei soldiers were deployed throughout the country (kondei were deployed in Mutsu, Dewa, and Sado Provinces as well, but not deployed in the Saikai-do Region) as a general rule in the tenth century.
その後、軍団が復活すると、健児は軍団の兵士として位置づけられ、10世紀ごろには、健児維持に用するための健児田が設定されたり、全国定員が約3600人（陸奥・出羽・佐渡にも置かれるようになったが、西海道には置かれなかった）とされていたことなどが判っている。