Here’s why China acknowledged its new missile silos in a documentary

Bulletin of the Atomic Scientists | Robert Rust

A new Chinese state media documentary celebrating the People’s Liberation Army’s 99th anniversary has provided the first semi-official acknowledgment of 320 new ICBM silos in Western China. Featuring Rocket Force engineer Cui Daohu, the broadcast signals Beijing's urgent push to secure its second-strike capability against advancing US missile defenses like the proposed Golden Dome program.

This rapid construction, first detected by satellite imagery in 2021 across Hami, Yumen, and Yulin, sparked international concern over a potential shift in China's traditional minimum deterrence posture. However, the official narrative maintains that these installations preserve a defensive, no-first-use policy. Speed was the primary political driver. Consequently, the rush to complete these sites challenges Western assessments that the military relies on delayed civilian fast-breeder reactors for weapons-grade plutonium. Ultimately, this newfound nuclear confidence, bolstered by the public display of DF-61 and DF-31BJ missiles, may pave the way for bilateral risk reduction talks with Washington.

Comment

Beijing's semi-official disclosure of the Hami missile field construction reveals a calculated effort to reconcile rapid nuclear expansion with its traditional no-first-use doctrine. By framing the silo build-out as an urgent defensive response to American missile interceptors, the PLA Rocket Force seeks to preserve the credibility of its retaliatory capability without formally adopting a first-strike doctrine. This defensive justification directly addresses the vulnerability of liquid-fuelled DF-5 silos to pre-emptive strikes.

The transition to solid-fuelled DF-41 ICBMs housed in these hardened silos provides the technical mechanism for a highly responsive launch-on-warning capability. This operational shift relies on early warning satellites to detect incoming strikes, allowing Beijing to launch retaliatory salvos before its own silos are compromised. Ultimately, the rapid concrete pouring at the Hami site ensures that the PLA Rocket Force can maintain its retaliatory mandate even under a degraded command environment.

Strategic Question for Discussion

If the PLA Rocket Force completes the transition to silo-based DF-41 ICBMs, does this technical shift inevitably force a transition to a launch-on-warning operational model, or can Beijing maintain its traditional retaliatory timeline?

The rapid deployment of solid-fuelled DF-41 systems suggests that Beijing is actively building the technical infrastructure required for a launch-on-warning capability. However, maintaining a traditional retaliatory timeline remains politically preferable, as a highly automated launch posture introduces severe escalation risks during a crisis. Therefore, the physical hardening of the Hami silos likely serves as a hedge, allowing political leadership to defer launch decisions rather than forcing an immediate response.

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