Silo-Based Systems. The PRC's silo-based ICBMs consist of multiple CSS-4 (DF-5 class) liquid-fueled ICBMs and more recently a CSS-10 (DF-31class) solid-propelled ICBM, which China probably began to load at its new silo fields. The PRC is updating its capability to deliver multi-megaton warheads by fielding the new DF-5C silo-based, liquid-fueled ICBM. The PRC is building more silos for DF-5 class ICBMs; increasing the number of brigades while simultaneously increasing the number of launchers per brigade – though there is no indication this project will approach the size or numbers of the solid propellant missile silos. The PLA probably is also developing an upgrade to its existing MIRVed DF-5 liquid-fueled ICBMs.
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Guazhou silo field on 11 January 2023; see the original report
China: Military garrisons constructed at newly build ICBM Silo Fields – Guazhou ICBM Silo Field Missile Garrison
Road-Mobile Systems. China's road-mobile ICBMs consist of the solid-fueled CSS-10 (DF-31 class) and CSS-20 (DF-41) ICBMs. The CSS-20 has improved range and accuracy over legacy solid-fueled ICBMS and is armed with no more than three warheads per missile. The PRC is establishing additional nuclear units and increasing the number of launchers in mobile ICBM units. This strategic arsenal is complemented by road-mobile and DF-26 IRBMs capable of ranging targets in the Indo-Pacific region.
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OFFICE OF THE SECRETARY OF DEFENSE
Annual Report to Congress: Military and Security Developments Involving the People's Republic of China
