Why doesn't Dai Xu give a speech now?

Dai Xu doesn't talk now, because Dai Xu University has retired. Dai Xu, a native of Minquan County, Henan Province, was discharged from the army in the middle of September 20 17. Graduated from Air Force Telecommunication Engineering College and Political College, Professor of Institute of Strategic Studies, National Defense University. He once served as navigation director and press officer in a ground-to-air missile flight academy of the Air Force. His representative works include Great Air Combat, Ocean Totem, C-shaped encirclement, Great Prosperity and so on.