The Ula beile Mantai, and his son having recently been executed by their tribesmen, Bujantai was released by Nurhaci, established as beile in his brother's place and as tributary to the lord of the Jianzhou, Nurhaci.
In 1388, the Hongwu Emperor established contact with three tribes of the Ilan Tumen area (the confluence of the Mudanjiang River and the Sungari River), the Odori, Huligai (Hūrha or Hurka) and Tuowen and attempted to enlist them as allies against the Mongols.
With an exception of the northernmost segment (north of Kaiyuan), both eastern and western sections of the Inner Palisade ran either outside of the old Liaodong Wall (the defensive wall built by the Ming Dynasty in the 15th century to protect the agricultural heartland of Liaoning from incursions by Mongols and Jianzhou Jurchens), or, in places, reused parts of the old wall.