The head of a faction of military officials who allied with literati (civil) officials in seeking social reform, his preference for negotiation with Ming Dynasty China rather than military means of solving a territorial dispute over his home region of Ssangseong led to the fall of the Goryeo Dynasty, and the establishment of his own, new, Joseon Dynasty, in [[1392]].<ref>Kang, David C. “Hierarchy and Legitimacy in International Systems: The Tribute System in Early Modern East Asia.” ''Security Studies'' 19, no. 4 (2010): 612</ref> | The head of a faction of military officials who allied with literati (civil) officials in seeking social reform, his preference for negotiation with Ming Dynasty China rather than military means of solving a territorial dispute over his home region of Ssangseong led to the fall of the Goryeo Dynasty, and the establishment of his own, new, Joseon Dynasty, in [[1392]].<ref>Kang, David C. “Hierarchy and Legitimacy in International Systems: The Tribute System in Early Modern East Asia.” ''Security Studies'' 19, no. 4 (2010): 612</ref> |