20世纪中叶 ,俄 (前苏联 )美为谋求实力均衡 ,进行了近半个世纪的军备竞赛 ;90年代 ,两国又围绕美国部署国家导弹防御系统 (ＮＭＤ)问题展开激烈较量。进入 2 1世纪后 ,两个核大国的军控政策如何发展 ,特别是美国新总统小布什上台后 ,两国军控政策走向何方 ,不仅关系到俄美两国 In the mid-20th century, Russia (the former Soviet Union) held an arms race in the past half century for the balance of power and strength. In the 1990s, the two countries fiercely contested the deployment of the NMD by the United States. After entering the 21st century, how are the arms control policies of the two nuclear powers developed, especially after the new U.S. President George W. Bush took office, the two countries’ arms control policies are going toward not only Russia and the United States