The Chinese government has strongly criticized U.S. announcements that it will develop or assist in deploying missile defense systems involving cooperation with U.S. allies in East Asia, and reports of such possible U.S. cooperation with Taiwan. For those in the United States, the U.S. plans have many perceived disadvantages and advantages;1 the latter include notably providing degrees of protection for the United States and its allies against ballistic missile attack. Many in China believe that proposed U.S. development and deployment of ballistic missile defenses at home and in East Asia pose potentially serious complications for China’s ability to use its nuclear weapons to deter possible U.S. pressure and aggression, and to use Chinese ballistic missile capability to exert leverage over Japan, Taiwan, and others in East Asia.

The People's Republic of China (PRC)'s provocative use of military force in the Taiwan Strait has appeared to subside, but not before convincing many in the Congress that the PRC regime continues to flout international norms sensitive to the United States. In addition to challenging stability in the Taiwan Strait, the PRC is seen recently to undermine important U.S. interests regarding nuclear proliferation, intellectual property rights, and missile proliferation. As a result, many in the Congress are pressing for actions -- including economic and other sanctions