Telegraph from the Central Military Commission Concerning Air-Defense Sheltering at the Command Post of the Ninth Corps (December 7, 1950)  To Song, Tao, and Qin [1]: Have you already addressed the issue of air-defense sheltering for your command post? Please report your air-defense arrangements by telegram.  Printed on December 7 by the Central Military Commission, based on Mao Zedong’s handwritten draft.  Note [1] Song refers to Song Shilun, who at that time served as Commander and Political Commissar of the Ninth Corps of the Chinese People’s Volunteers. Tao refers to Tao Yong, then Deputy Commander of the Ninth Corps. Qin refers to Qin Jian, then Chief of Staff of the Ninth Corps.