THE EVOLUTION OF AMERICAN AND WORLD PATTERNS Li Guoyou（7） The microcosmic development of quanta and genes led to tremendous changes vis-à-vis enterprises, nations and international relations. The basic concept of national security has started to focus on the fight against terrorism, the suppression of the drug trade, and the global effort to protect the environment against pollution and destruction. The sovereignty of nations is being challenged. The rise oor fall of a nation is decided by its ability to self-regenerate. In this new pattern America’s political and economic systems and leadership ability retain their advantages.