US–China–Taiwan
The technology cold war, Taiwan Strait tensions, and the decoupling of the world's two largest economies.
Current Situation
Last updated: October 03, 2026
The Trump-Xi summit converted diplomatic pageantry into limited deliverables, specifically reciprocal tariff cuts on $30 billion of non-sensitive goods and agreements to pursue a military crisis-communication pact and an AI dialogue. However, the truce is fragile; the US has already begun squeezing China's jet-parts supply as the rare-earth crisis remains unresolved, and US Trade Representative Greer noted that no date is set for the actual tariff cuts. While Trump describes the engagement as respectful, the security standoff remains acute, with the US considering the deployment of advanced anti-ship missiles to Japan and Beijing accusing Taipei of desecrating martyrs.
Taiwan's defense posture has shifted toward accelerating asymmetric capabilities and hardware delivery. The island took delivery of its first two F-16V fighter jets and announced a $930 million sea-drone buildout to counter Chinese maritime pressure. Taipei continues to press Washington for the delivery of a delayed $14 billion arms package, while the US House Speaker and Senate Armed Services Committee Chairman have publicly reaffirmed that security commitments to Taiwan must be upheld. This capability build-out is being mirrored by diplomatic and industrial missions, including a foreign minister visit to Arizona semiconductor firms.
Investment implications are bifurcated between a limited trade reprieve and escalating technological and security friction. Chinese stocks hit a one-year low following proposed US curbs on optical component suppliers, signaling that targeted tech restrictions are overriding the broad tariff truce. The persistence of the rare-earth showdown and the weaponization of aviation components suggest that supply chain volatility in high-tech manufacturing remains a primary risk. Meanwhile, the acceleration of Taiwan's drone and fighter jet acquisitions reinforces the long-term bullish trend for US defense contractors specializing in asymmetric warfare.
Key variable to watch: Whether the upcoming November leader-level meeting results in a resolution of the $14 billion Taiwan arms package or a collapse of the current tariff truce.
Background
Origins
The US-China rivalry is the defining geopolitical contest of the 21st century — a competition between the incumbent global hegemon and the most serious challenger in the modern era. It is simultaneously a technological, military, economic, ideological, and geographic contest. The Taiwan question sits at its most dangerous intersection: a democratic island of 23 million people that China considers a renegade province and the US has pledged — with deliberate ambiguity — to defend.
The conflict's modern roots lie in the Chinese Communist Party's 1949 victory in the civil war, which pushed the Republic of China government to Taiwan. Both governments claimed to be the legitimate government of all China for decades. The US maintained formal recognition of the Republic of China until 1979, when it switched to recognising the People's Republic and adopted its current policy of "strategic ambiguity" — officially acknowledging Beijing's position that there is "one China" while maintaining unofficial relations with Taipei and selling it arms for self-defence.
The current acute phase began around 2012–2015, when Xi Jinping consolidated power, ended the post-Tiananmen policy of keeping a low geopolitical profile ("hide your strength, bide your time"), and began an assertive expansion of Chinese military capability and territorial claims in the South China Sea. The trade war launched by the Trump administration in 2018 marked the explicit end of the US engagement strategy — the bipartisan consensus that economic integration would produce political liberalisation — and the beginning of a decoupling era.
Taiwan became the focal point because of semiconductors. TSMC produces approximately 90% of the world's most advanced chips (below 7nm). Every leading AI accelerator, every modern smartphone, every advanced military system runs on TSMC silicon. Control over, or denial of access to, TSMC's fabrication capacity would be the single most powerful economic weapon in any great power conflict. Taiwan is not just a geopolitical flashpoint — it is the central node of the global technology economy.
Key Actors
Xi Jinping: China's paramount leader since 2012, who has consolidated power to a degree not seen since Mao. Xi has made Taiwan "reunification" a core element of his "China Dream" narrative and has set implicit timelines — the 2049 centenary of the PRC's founding is often cited, with some analysts believing the window of military advantage over the US may be narrower, pushing the timeline toward 2027–35. Xi is not a risk-taker by nature, but he has consistently defied Western predictions that economic costs would moderate Chinese assertiveness.
Taiwan / President Lai Ching-te: Taiwan's current president from the Democratic Progressive Party (DPP), which is associated with a stronger Taiwanese identity and scepticism of close engagement with Beijing. Lai's election in January 2024 was followed by intensified Chinese military pressure. Taiwan has been increasing defence spending and extending conscription, though its defence posture remains heavily dependent on the US security commitment.
TSMC / Morris Chang: Taiwan Semiconductor Manufacturing Company is not just a corporation — it is a geopolitical actor. TSMC's deliberate strategy of concentrating advanced manufacturing in Taiwan (the "silicon shield" theory) makes the island too valuable to blockade or invade without catastrophic global economic consequences. TSMC's expansion to Arizona, Japan, and Germany is partly a hedge against this concentration risk.
United States Military / Indo-Pacific Command: INDOPACOM is the US military's largest geographic command. The US maintains a network of bases and alliances across the Pacific — Japan, South Korea, Guam, the Philippines — designed to deter Chinese military action. The US has the most capable military in the world but faces a "home field advantage" problem: China can mass more forces closer to Taiwan than the US can project across the Pacific within a given timeframe.
Japan / South Korea / Australia: The primary US allies whose cooperation is essential for any Taiwan defence scenario. Japan is most exposed — the Ryukyu Islands chain that includes Okinawa sits adjacent to Taiwan's strait. Japan has dramatically increased defence spending and has engaged in unprecedented strategic alignment with the US on Taiwan contingencies. South Korea is more conflicted due to its deep economic dependence on China.
ASML / Nvidia / US Chip Industry: The technology sector has become a primary battlefield. ASML's extreme ultraviolet (EUV) lithography machines are essential for advanced chip production and are Dutch; the US has pressured the Netherlands to restrict their export to China. NVIDIA's data centre GPUs — essential for AI training — have been progressively restricted from export to China. The chip war is the economic front of the broader rivalry.
Historical Context
1949–1979 — Two Chinas: US recognised the Republic of China (Taiwan) as the legitimate government of China. The PRC was excluded from the United Nations until 1971. The Korean War (1950–53) cemented US military positioning in East Asia.
1958 — First and Second Taiwan Strait Crises: PRC bombarded Quemoy and Matsu islands held by the ROC. The US committed to Taiwan's defence. These crises established the basic pattern of Chinese coercive pressure and US deterrence that persists to today.
1979 — Taiwan Relations Act: The US switched diplomatic recognition from Taipei to Beijing. The Taiwan Relations Act committed the US to provide Taiwan with "defensive arms" and treat any forceful attempt to alter Taiwan's status as a matter of "grave concern." The deliberate ambiguity about whether the US would militarily defend Taiwan has been maintained since.
1995–96 — Third Taiwan Strait Crisis: China conducted missile tests near Taiwan during Taiwan's first direct presidential election, attempting to intimidate voters. The Clinton administration deployed two carrier strike groups to the strait — the largest US naval deployment in Asia since Vietnam. China backed down but drew the lesson that it needed to develop capabilities to prevent US carrier access.
2001–2010 — WTO Accession and Engagement Era: China's 2001 WTO accession supercharged economic integration. Western businesses and governments invested in a theory that Chinese economic development would produce political liberalisation. Trade volumes grew from $121B to $457B (US-China, 2001–2010). The theory proved wrong.
2012–present — Xi Era / Assertiveness: Xi's consolidation of power, the South China Sea island-building programme, the Belt and Road Initiative, the Xinjiang internment camps, the Hong Kong crackdown, and the military buildup targeting Taiwan denial capabilities have all accelerated under Xi. The 2022 Pelosi Taiwan visit triggered China's most significant military exercises since 1996.
2018–present — Technology Cold War: Trump's trade war (2018), Huawei bans (2019), chip export controls (2022, 2023, 2024), and TSMC Arizona (2022–). The technology war is more consequential than the trade war — it targets the foundation of future economic and military power.
Market Exposure
Semiconductors: The most direct and significant market exposure. TSMC (TSM) carries Taiwan geopolitical risk as an inherent discount. NVIDIA, AMD, and Qualcomm have material China revenue exposure to export controls. ASML has China sales that are progressively being restricted. SMIC (Chinese domestic foundry) is the "national champion" bet on Chinese chip independence but is multiple generations behind TSMC. The semiconductor sector is the primary investment expression of the US-China rivalry.
China-exposed US multinationals: Apple generates ~18% of revenue in China and manufactures ~90% of iPhones there. Starbucks, Nike, GM, and hundreds of other US brands have significant China exposure. Any escalation in trade tensions or a Taiwan scenario creates material downside for these names.
Chinese equities: Hong Kong-listed Chinese tech (Alibaba, Tencent, JD, Meituan) and domestic A-shares carry a "China discount" reflecting regulatory risk, geopolitical risk, and the structural question of whether Western investors can trust returns from Chinese-listed companies.
US Defence: Any Taiwan escalation scenario is strongly positive for US defence contractors — Lockheed, Raytheon, Northrop, L3Harris all have Taiwan-relevant product lines (F-35, PAC-3, submarines, electronic warfare).
Rare Earths / Critical Minerals: China controls 60% of rare earth production and 85% of rare earth processing. It has already used export restrictions on gallium, germanium, and antimony as counter-weapons in the technology war. A full decoupling scenario would cause severe disruption to EV, wind turbine, and defence manufacturing that depends on Chinese rare earth processing.