A Model for the Peace Movement?
441: “Emperor Zhengde insisted on leading an army against the Mongols in 1517 only for the official in charge of the Great Wall to refuse to open the gates to let him through because emperors belonged in Beijing.”
Morris, Ian. 2010. Why The West Rules — For Now: The Patterns of History, and What They Reveal About the Future (New York: Farrar, Straus and Giroux): p. 441. [A great book]