Editing Dongfeng (missile) (section)

===Dongfeng 21 (CSS-5)===
{{Main|DF-21}}
[[File:Dongfeng-21D.JPG|thumb|The DF-21D missile as seen after the military parade on 3 September 2015.]]
The '''DF-21''' ('''CSS-5''') is a two-stage, solid-fuel MRBM developed by the 2nd Aerospace Academy (now China Changfeng Mechanics and Electronics Technology Academy) in late 1970s.  It was the first solid-fuelled ballistic missile deployed by the Second Artillery Corp.  The missile carries a single 500&nbsp;kt nuclear warhead, with up to {{convert|2,500|km|mi|abbr=on}} range.  The DF-21 also served as the basis for the [[submarine-launched ballistic missile]] (SLBM) [[JL-1]] (CSS-N-3),<ref>[http://www.sinodefence.com/strategic/missile/jl1.asp JuLang 1 (CSS-N-3) Submarine-Launched Ballistic Missile] {{Webarchive|url=https://web.archive.org/web/20060510172553/http://www.sinodefence.com/strategic/missile/jl1.asp |date=2006-05-10 }} Sinodefence.com</ref> used on the [[Type 092 submarine|''Xia''-class SSBN]].  In 1996, an improved variant, the DF-21A, was introduced.  As of 2010, 60-80 DF-21/DF-21A were estimated to be in service; this number may have increased since then.<ref>[http://www.globalsecurity.org/wmd/world/china/df-21.htm DF-21 / CSS-5] {{Webarchive|url=https://web.archive.org/web/20211116163052/http://www.globalsecurity.org/wmd/world/china/df-21.htm |date=2021-11-16 }}. [[GlobalSecurity.org]]</ref><ref>[http://www.sinodefence.com/strategic/missile/df21.asp DongFeng 21 (CSS-5) Medium-Range Ballistic Missile] {{webarchive|url=https://web.archive.org/web/20080201232409/http://www.sinodefence.com/strategic/missile/df21.asp |date=2008-02-01 }} Sinodefence.com</ref> Sources say Saudi Arabia bought a DF-21 in 2007.

The latest variant, the DF-21D, has a maximum range exceeding 1,450 kilometres (900&nbsp;mi; 780 nmi) according to the U.S. [[National Air and Space Intelligence Center]].  It is hailed as the world's first [[anti-ship ballistic missile]] (ASBM) system, capable of targeting a moving [[carrier strike group]] from long-range, land-based mobile launchers.  The DF-21D is thought to employ [[maneuverable reentry vehicle]]s (MaRVs) with a [[terminal guidance]] system.  It may have been tested in 2005–2006, and the launch of the Jianbing-5/YaoGan-1 and Jianbing-6/YaoGan-2 satellites offering targeting information from [[synthetic aperture radar]] (SAR) and visual imaging respectively.