The Systems War: Coercion Without Invasion

Summary

This scenario looks at how China could defeat the United States over Taiwan without a full-scale war. It would do so by attacking the systems that let US forces see, communicate and resupply, and the systems that keep the US home front running. It is not a prediction. It shows a path that the open literature treats as possible, while also judging it hard to carry out and costly to China.

The trigger is a Taiwan crisis. A Chinese coast-guard "quarantine" of Taiwan, of the kind CSIS mapped in 2024 [12], escalates after a US decision to escort shipping. China acts first. It does not launch a missile salvo. In a single coordinated move, it jams and dazzles US military satellites and moves against some of them in orbit, using the counterspace capabilities documented by CSIS and the US Space Force [5][6]. US officials attribute disruptions in US communications, energy, water and transport networks to the pre-positioned access that CISA, NSA and FBI publicly warned about in 2024 ("Volt Typhoon") [1][2]. At the same time, Beijing reimposes and widens its export bans on rare earths, gallium, germanium and antimony [8][9]. It also restricts exports of active pharmaceutical ingredients (APIs) for generic drugs [10].

The open phase lasts about five weeks. US forces in the Western Pacific lose much of their space-based warning, navigation and long-haul communication for days at a time. In the United States, regional outages, port and rail disruption and drug shortages drive up public pressure. Few people are killed: several hundred military personnel in collisions, accidents and a handful of shoot-downs, plus civilian deaths from the infrastructure outages. These deaths are hard to count. Only a handful of US or Chinese warships are lost, compared with dozens in invasion wargames [4].

China wins by coercion. Washington agrees to stand down its escorts, to stop military sales to Taiwan and senior-level contact with Taipei, and to support "cross-Strait talks" on Beijing's terms. In return, Beijing ends the bans and the attacks. Taiwan is not occupied but is pushed into negotiations. The deeper loss is to US standing: allies conclude that the US can be coerced at home.

At a glance

Trigger	First mover	Duration	US losses	Chinese losses	Taiwan/ally losses	Form of Chinese victory
Coast-guard quarantine of Taiwan escalates after a US escort decision	China (counterspace, attributed cyber disruption, export bans on the same day)	About 5 weeks of acute crisis; 6 to 9 months of economic aftermath	Military: 150 to 600 dead, 1 to 3 ships damaged or lost, 10 to 40 aircraft. Several military satellites degraded or disabled. Civilian deaths from outages and shortages: indirect and hard to count	Military: 100 to 500 dead, 2 to 6 ships, 10 to 30 aircraft. Heavy economic losses from countersanctions and lost trade	Taiwan: blockade-driven shortages and a few clashes at sea. Japan and the Philippines: minor clashes. No invasion	Coerced settlement: US stops escorts, arms sales and official contact; Taiwan pushed into talks; US standing in Asia falls

Background and assumptions

The PLA's own doctrine describes this kind of war. RAND's Jeffrey Engstrom (2018) describes "systems destruction warfare": the PLA aims to win by disrupting, paralysing or destroying the enemy's operational system, meaning its command, information, reconnaissance and support networks, rather than by wearing down its forces [3]. Whether the PLA could execute such a campaign at scale against the United States remains untested.

The building blocks are documented in public sources.

Space. CSIS's 2025 Space Threat Assessment reports that Chinese (and Russian) satellites in low and geostationary orbit show increasingly advanced manoeuvring that "can be used for space warfighting" [5]. The US Space Force's public threat fact sheet describes China as pursuing a wide range of counterspace capabilities to disrupt and degrade US space systems [6]. According to press coverage of its release, the DoD's December 2025 China Military Power Report lists anti-satellite missiles and directed-energy weapons among these capabilities [7].
Cyber. A joint advisory, AA24-038A (February 2024), from CISA, NSA, FBI and Five Eyes partners assessed "with high confidence" that PRC state-sponsored actors had gained access to US communications, energy, transport and water networks, including on Guam. The advisory judged that this access was to prepare for disruption "in the event of a major crisis or conflict with the United States" [1]. FBI Director Wray told Congress in January 2024 that the aim was to "wreak havoc" if Beijing decided to strike [2]. Press coverage of the DoD 2025 report also describes Volt Typhoon as positioned to cause disruption in a crisis such as a Taiwan conflict [7].
Economic levers. China banned exports of gallium, germanium and antimony to the US in December 2024. In October 2025 it announced broad rare-earth controls, then suspended both measures after a Trump–Xi meeting. The rare-earth suspension runs for one year and the metals suspension runs to 27 November 2026 [8][9]. Licensing requirements and a ban on supplying US military end users remain in force [8]. The USGS estimates US net import reliance for rare-earth compounds and metals at 67% in 2025 [9]. The USCC's November 2025 report estimated that nearly a quarter of the APIs in US generic drugs are potentially sourced from China, and that a quarter to a half of US generics contain APIs made from Chinese starting materials, while stressing poor data visibility [10].

What must be true:

The cyber access described in [1] must still exist at the time of the crisis, despite the takedowns and hardening since 2024, and must work at scale. That is the largest uncertainty.
US space architecture must not yet be resilient enough to absorb the attacks. Proliferated constellations and commercial backups must not be fully integrated into the military.
The US president and Congress must judge Taiwan's status a less important interest than domestic stability. They must also see no quick way to restore deterrence without a war against a nuclear power.
China must accept serious economic harm from US and allied countermeasures, and must accept that its leverage is partly spent once used.

Likelihood. The research leans against this path. A 2024 CSIS survey of US and Taiwanese experts found that most believed China could already carry out a quarantine or blockade but few believed it could effectively invade, and CSIS judged a quarantine the more likely near-term option [12][13]. In the author's judgement, a coercive escalation like this one would still be highly risky for Beijing. Brookings argues that US drug exposure to China is concentrated upstream, in the raw materials and reagents used to make APIs, where visibility is extremely limited. A ban would therefore bite in uneven ways and possibly more slowly than headlines suggest [11]. Cyber effects of the size assumed here have never been demonstrated publicly. This scenario is therefore plausible but unlikely. It depends on several weak points failing together and on US political will breaking first.

Timeline

D-180. China's Ministry of Commerce lets the suspension of its gallium, germanium and antimony bans lapse for "military-linked" US buyers and slows rare-earth licences [8]. The US Commerce Department warns industry and starts reviewing stockpiles.
D-150. CISA and partners publish an update to [1] stating that PRC-linked access to US utilities persists. Utilities are urged to apply mitigations. Many small water and power operators lack the staff to act quickly.
D-120. Chinese satellites carry out close-approach manoeuvres near US geostationary satellites, of the kind described in [5]. US Space Command protests publicly. Beijing calls the operations "routine".
D-90. Taiwan's election returns a government Beijing calls "separatist". China announces "law-enforcement inspections" of shipping to Taiwan, along the lines of the CSIS quarantine model [12]. The US and Japan condemn the move. Shipping insurers raise premiums.
D-60. The China Coast Guard begins inspecting some ships bound for Taiwan. Taipei protests. Washington sends a carrier group but does not escort ships.
D-45. Beijing tells foreign carriers to file cargo declarations with Chinese authorities. Most large lines comply to protect access to Chinese ports. Taiwan's LNG reserves fall.
D-30. Congress passes a resolution calling for escorts. The President orders US Navy escorts of Taiwan-bound tankers from D-day. China calls this "armed interference" and warns of "all necessary measures".
D-14. China warns its citizens to leave Guam and quietly lowers its holdings of some US assets. The US raises force-protection levels and orders utilities to step up monitoring under [1].
D-7. China halts exports of key APIs and finished generic drugs to the US "for safety review". The FDA activates its shortage protocols, citing the dependence documented in [10]. Hospitals begin rationing some antibiotics.
D-day. The first US-escorted convoy nears the quarantine line. Within hours, US forces lose military satellite communication and navigation across much of the theatre to jamming and interference. One US early-warning satellite reports a close approach and then stops working. China denies responsibility. The US convoy continues with degraded links.
D-day (same hours). Regional power and telecom outages hit Guam and several US West Coast and Hawaii utilities. CISA and the FBI attribute the outages to the actors described in [1]. Federal response teams deploy. The White House calls it "an attack on the American people".
D-day (same hours). Beijing announces a complete ban on rare-earth, magnet, gallium and germanium exports to the US and its allies "until US provocations cease" [8][9]. Markets fall sharply and defence contractors warn of production delays.
D+1. A China Coast Guard cutter and a US destroyer collide at the quarantine line. Both are damaged and sailors on both sides are killed. Both sides publish rival videos.
D+2. US commanders, unsure of what they can see, hold the carrier group outside the first island chain. China describes this publicly as a US retreat.
D+3. US Cyber Command and CISA restore most affected grid segments. Water utility disruptions in several states lead to boil-water orders. Port operations on the West Coast slow because of communications failures.
D+4. A US maritime patrol aircraft is lost over the Philippine Sea. The US says a PLA fighter shot it down. China says it crashed. The US cancels further patrols near Taiwan pending escorts.
D+5. Japan places its forces on alert but limits US use of its bases to defensive missions. Tokyo cites rare-earth exposure and the threat of attacks on its own infrastructure.
D+7. The President authorises strikes against Chinese counterspace ground sites. Advisers warn of escalation against a nuclear power and the strike option is shelved. Washington instead announces sanctions and freezes PRC-linked assets.
D+8. China retaliates against the sanctions with further export controls and suspends purchases of US farm goods. US farm states lobby the White House.
D+10. Several hospitals in the US declare shortages of specific antibiotics and chemotherapy drugs. Congressional hearings are dominated by the drug crisis. Allies in Europe and India begin rationing their own stockpiles rather than exporting.
D+12. US military satellites partly recover as commercial constellations are brought into use. Coverage over the Strait stays patchy. A second convoy is postponed.
D+14. The Philippines refuses to allow new US deployments at Luzon sites "during the crisis". Australia sends ships but says it will not join escorts.
D+16. A PLA fighter and a Taiwanese fighter are lost in a clash. Taiwan asks for direct US air cover. Washington offers intelligence support only.
D+18. Brent crude rises sharply. US consumer confidence collapses. Polls show most Americans oppose going to war over Taiwan.
D+20. A second wave of outages affects US rail signalling and a gas pipeline control system. CISA attributes these to the same actors [1]. Emergency rail closures delay military shipments to West Coast ports.
D+22. Russia vetoes a UN Security Council resolution condemning China's quarantine. In the General Assembly, many Global South states abstain.
D+24. The EU announces "mediation" and declines to join US sanctions in full, citing its own rare-earth and drug dependence.
D+26. Secret US–China talks open in Singapore. China demands an end to escorts and arms sales, and US support for cross-Strait talks.
D+29. The US offers to suspend escorts in return for the lifting of export bans. China rejects the offer and holds out for full terms.
D+32. Taiwan's LNG stocks reach crisis levels and rolling blackouts begin across the island. The Taipei government, without guarantees of US intervention, signals willingness to talk.
D+35. The US and China announce a "framework for stability". The US ends escorts, freezes arms sales and halts senior official contact with Taipei. China ends the quarantine and the export bans, and calls for "talks between compatriots".
D+60. Rare-earth and drug exports resume slowly under Chinese licensing. Washington launches an emergency reshoring programme. Allies begin hedging their own policies toward China.
D+180. Taipei and Beijing start formal talks. Japan, South Korea and the Philippines launch independent defence reviews. US credibility in Asia is widely seen as damaged.

World politics and allies

Japan. Tokyo is the most exposed ally because US forces fly from its bases. In this scenario, Japan's concern about rare-earth supply and attacks on its own infrastructure leads it to limit US base use to defence. After the crisis, Japan raises defence spending and debates nuclear options.

Australia. Canberra sends ships but avoids escort missions. It then accelerates its own rare-earth production and the AUKUS submarine programme as a hedge.

Philippines. Manila fears being drawn into a war it cannot win. It refuses new US deployments during the crisis, then moves closer to Beijing on South China Sea disputes.

South Korea. Seoul stays neutral because of North Korea and its trade with China. Its forces remain at home.

NATO/EU. European states condemn the attacks but will not join full sanctions because they are exposed to the same drug and rare-earth dependence. The EU presents itself as a mediator.

India. New Delhi stays neutral but benefits as an alternative source of generic drugs and manufacturing. It refuses to join any US-led coalition.

Russia. Moscow vetoes action at the UN and helps China with energy supplies. It also gains from the US being distracted from Europe.

North Korea. Pyongyang raises tensions with missile tests and holds US forces in Korea in place.

Iran. Tehran exploits US distraction in the Gulf but avoids direct action.

Global South. Many states abstain at the UN. They see the result as proof that China can now protect its interests against the US. Several speed up their use of Chinese payment systems.

UN. The Security Council is blocked. The Secretary-General calls for restraint. The General Assembly passes a weak resolution with many abstentions.

How China wins

The end state is acquiescence, not surrender. The US is not defeated in battle. It concludes that continued resistance would cost more at home than Taiwan is worth, and that the escalation it would need, such as strikes on the Chinese mainland, risks nuclear war. The US accepts China's terms for four reasons:

US forces cannot see or communicate reliably near Taiwan and cannot quickly restore what they lost in space [5][6].
Infrastructure attacks and shortages make the crisis personal for ordinary Americans and leave the government looking unable to protect them [1][2][10].
Allies do not offer the base access and joint action that a military answer would need.
Taiwan itself, under blockade and without guarantees, moves toward talks.

China's gains go beyond Taiwan. It shows that it can coerce the US without fighting a large war, which is Engstrom's "systems destruction" achieved at strategic scale [3]. Its world standing rises among states that hedge. US allies start to doubt the US and build up their own defences. China pays a heavy economic price, and it has also exposed its methods, which could lead to US hardening in the long term.

Losses

Side	Personnel	Ships	Aircraft	Other
United States	150 to 600 military dead, mostly at sea and in air incidents. Civilian deaths indirect, from outages and drug shortages, uncounted	1 to 3 damaged or lost (collision, mine or missile)	10 to 40 (patrol aircraft, fighters, accidents under degraded navigation)	Several military satellites degraded or disabled. Regional grid, water and rail disruptions. Large market losses
China	100 to 500 military dead	2 to 6 coast-guard and navy vessels	10 to 30	Lost trade with the US and allies. Frozen assets. Damage to its reputation in Europe
Taiwan	Tens to low hundreds of military dead. Civilian harm from blockade-driven energy shortages	1 to 3	5 to 15	Rolling blackouts. Severe economic contraction
Japan/Philippines	Small numbers in incidents	0 to 1	0 to 5	Economic damage from rare-earth bans

Basis. These figures are author estimates for a limited, mostly non-kinetic campaign. They are far lower than the CSIS invasion wargames, where the US typically lost two carriers, 10 to 20 large surface ships and thousands of personnel within weeks, and China lost about 138 ships and 155 combat aircraft [4]. The figures assume that neither side carries out deliberate large-scale strikes and that losses come from collisions, isolated engagements and accidents.

What would change the outcome

Resilient space architecture. Proliferated, rapidly replaceable constellations, plus commercial backup integrated with US forces in peacetime, would deny China the "blinding" effect [5][6].
Hardened infrastructure. Thorough clearing of the access described in [1], and stronger resilience in small utilities, would remove China's leverage over the US home front.
Stockpiles and alternative supply. Rare-earth production with allies and reserves of generic drugs and APIs would defeat the export bans [9][10][11].
Allied commitments made in advance. Japanese and Philippine base access agreed before a crisis, and joint European sanctions, would deny China the chance to split the coalition.
Clear US political resolve. A public commitment by Congress and the President that coercion will not change Taiwan policy would make China less confident that coercion pays.

References

CISA, NSA, FBI et al., "PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure," Advisory AA24-038A, 7 February 2024. https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-038a
NBC News, "FBI director warns Chinese hackers aim to 'wreak havoc' on U.S. critical infrastructure," 31 January 2024. https://www.nbcnews.com/politics/national-security/fbi-director-warn-chinese-hackers-aim-wreak-havoc-us-critical-infrastr-rcna136524
Jeffrey Engstrom, Systems Confrontation and System Destruction Warfare, RAND RR-1708-OSD, 2018. https://www.rand.org/pubs/research_reports/RR1708.html
Mark F. Cancian, Matthew Cancian, Eric Heginbotham, The First Battle of the Next War: Wargaming a Chinese Invasion of Taiwan, CSIS, January 2023 (specific loss figures as reported by Taiwan News, 10 January 2023, https://www.taiwannews.com.tw/news/5112958, and Radio Free Asia). https://www.csis.org/analysis/first-battle-next-war-wargaming-chinese-invasion-taiwan
Clayton Swope, Kari A. Bingen, Makena Young, Kendra LaFave, Space Threat Assessment 2025, CSIS, April 2025. https://www.csis.org/analysis/space-threat-assessment-2025
US Space Force, "Space Threat Fact Sheet," 2025 (current to December 2025). https://www.spaceforce.mil/About-Us/Fact-Sheets/Fact-Sheet-Display/Article/4297159/space-threat-fact-sheet
US Department of Defense, Military and Security Developments Involving the People's Republic of China 2025, 23 December 2025 (via Anadolu Agency coverage, 24 December 2025; report text not read first-hand). https://www.anews.com.tr/world/2025/12/24/pentagon-warns-of-rising-chinese-threat-to-homeland-stresses-deterrence-by-strength
Fastmarkets, "China suspends export prohibition on gallium, germanium, antimony, superhard materials to US," November 2025. https://fastmarkets.com/insights/china-suspends-export-prohibition-on-superhard-materials-us
US Geological Survey, Mineral Commodity Summaries 2026: Rare Earths, February 2026. https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-rare-earths.pdf
US-China Economic and Security Review Commission, 2025 Annual Report, November 2025 (via Pharmaceutical Executive coverage, 19 November 2025). https://www.pharmexec.com/view/new-report-cautions-china-pharma-dominance-poses-growing-risks-us-drug-supply-chain
Marta E. Wosińska and Yihan Shi, "US drug supply chain exposure to China," Brookings Institution, 28 July 2025. https://www.brookings.edu/articles/us-drug-supply-chain-exposure-to-china
Bonny Lin et al., "How China Could Quarantine Taiwan: Mapping Out Two Possible Scenarios," CSIS China Power, 5 June 2024. https://www.csis.org/analysis/how-china-could-quarantine-taiwan-mapping-out-two-possible-scenarios
Bonny Lin et al., "Surveying the Experts: U.S. and Taiwan Views on China's Approach to Taiwan," CSIS China Power, 22 January 2024. https://chinapower.csis.org/surveying-experts-us-and-taiwan-views-china-approach-taiwan-2024/

← The Long War: Attrition, Empty Bins and a Negotiated Settlement