If China Invaded Taiwan: Who Would Enter the War?
23 pages · PDF · 12 July 2025 · Licensed single-user copy, watermarked to the buyer
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About this report
An outright Chinese invasion of Taiwan would be one of the most destabilizing events imaginable for Asia and the entire global order. This scenario raises urgent questions about which countries, if any, would intervene militarily to defend Taiwan.
Analysts stress that much would depend on the circumstances – above all, the role of the United States . It is widely assessed that without a U.S. military intervention, Taiwan would likely stand alone , as no other nation is expected to commit forces unilaterally against China.
Key questions this report answers
- Why is the United States assessed as the decisive factor in whether any country would defend Taiwan against a Chinese invasion?
- How would frontline allies Japan and the Philippines respond under threat?
- How might South Korea, Australia and India weigh intervention against their own risks?
- What would Europe and the rest of the world contribute, and what does this imply for the deterrence challenge?
Inside this report
- The United States: The Decisive Factor
- Japan and the Philippines: Frontline Allies Under Threat
- South Korea, Australia, and India: Allies Further Afield Weigh Their Options
- Southeast Asia (Aside from the Philippines): Emphasis on Neutrality
- Europe and the Rest of the World: Limited Military Involvement, Focus on Sanctio
- Conclusion: Global Response and the Deterrence Challenge
Who it's for
Strategy, corporate-development and investment teams that need an ecosystem-level view — budgets, industrial capacity and technology landscapes — before committing capital or capacity.
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DFM reports are built from primary and official sources — TED procurement notices, CORDIS and the EU Funding & Tenders Portal, EIB operations, the NATO Innovation Fund portfolio, SIPRI data, official budget documents and company disclosures — read together with the underlying legal texts. Sources are cited in the document; it reflects them as of its publication date (12 July 2025). You receive a 23-page PDF, watermarked to you on every page, delivered on the confirmation page and by e-mail immediately after checkout (personal link valid 72 hours, up to 5 downloads). Guest checkout, single-user licence — Terms of Sale.
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