Starting in 1987 China started deploying the DF-21 (CSS-5), a new solid-fuel missile derived from the JL-1 submarine launched ballistic missile (SLBM). In its latest report on the PLA the Pentagon notes that 34 to 38 transporter-erector-launchers (TELs) are ready to fire between 40 to 50 DF-21 missiles. The DF-21 is now reported to come in an initial variant with a range of 1,770+km to 2,150km, and the DF-21A (CSS-5 Mod 2), with a range of 2,500km. The DF-21 can be armed with nuclear or non-nuclear warheads. ..
The DF-21 also provided the basis for the four-stage KT-1 mobile solid fuel space launch vehicle, which in turn, forms the basis for the SC-19 direct-ascent anti-satellite (ASAT) missile. A more capable ASAT missile may be derived from the KT-2, which Chinese sources at the 2002 Zhuhai Airshow stated was based on the DF-31 ICBM. The massive debris from the January 11 satellite destruction has forced the U.S. to move one satellite[2], and possibly, the International Space Station, to avoid destruction. The threat from the Chinese satellite debris will exist for about a decade to come. ..
China’s new ASBMs pose a strategic as well as a tactical challenge to U.S. forces in Asia. At present the U.S. does not have anti-missile capabilities to defend large U.S. ships against this threat, so vulnerable targets, most importantly aircraft carriers, will have to remain out of missile range in order to survive. This factor will further limit the effectiveness of their already range-challenged F/A-18E/F fighter bombers. U.S. Aegis cruisers and destroyers now being outfitted with new SM-3 interceptors with upgraded radar and processing capabilities may in the future be configured to deal with this threat, but if so, they may not be available for other missions, like protecting people. The fact is that no anti-missile system is going to come close to providing reliable defense. For China,
ASBMs provide a means for saturating U.S. ships with missiles. While ASBMs are bearing down from above, their attack can be coordinated with waves of submarine, air and ship-launched anti-ship cruise missiles. ..
But from one missile, the DF-21, China has devised new versions that can target U.S. aircraft carriers and the space information system essential to their successful employment. Additional missiles are now being developed for both missions.
Should the U.S. 7th Fleet’s sole aircraft carrier based in Japan be neutralized by Chinese missiles, it may be weeks before another can arrive to face the same Chinese missile gauntlet.
http://www.strategycenter.net/research/pubID.165/pub_detail.asp