U.S. COUNTERPROLIFERATION STRATEGY Zhang Yeliang (76) Counterproliferation is a brand-new strategic concept dealing with the present and future threats of weapons of mass destruction and means to deliver them in the post-Cold War period. The author gives a detailed analysis of how and why counter-proliferation is brought into being and makes a summary of and comments on the strategy's basic content and the prospect of its implementation. Basing on these, he continues to discuss its essentials and strategic intents, showing links and differences between counterproliferation and traditional nonproliferation.