How the Chip War Is Reshaping Geopolitics

When the US Department of Commerce restricted exports of advanced chips to China in October 2022, it marked something new in economic history: the explicit weaponization of technology supply chains as a tool of statecraft.

Why Chips Matter

Modern semiconductors are not just components — they are the substrate of military power, economic productivity, and AI capability. A state that cannot produce or access advanced chips cannot build the next generation of weapons, train competitive AI models, or run the digital infrastructure of a modern economy.

TSMC, based in Taiwan, manufactures roughly 90% of the world's most advanced chips (below 5nm). This geographic concentration is not a market failure — it is the result of decades of compounding investment, specialized labor, and institutional knowledge. It cannot be replicated in years.

The US Export Controls

The October 2022 and subsequent 2023 controls were sweeping. They banned export of chips above certain performance thresholds to Chinese entities, restricted sale of chip-making equipment (from ASML, Lam Research, Applied Materials), and required foreign companies to obtain licenses before selling advanced chips to China — even if those chips were made outside the US.

The extraterritorial reach was extraordinary. The Foreign Direct Product Rule (FDPR) means that any chip made anywhere using American technology requires US approval for sale to restricted parties.

China's Response

Beijing has responded with a combination of industrial policy (the "Big Fund" semiconductor subsidies), talent acquisition, and reverse engineering. Huawei's 2023 Mate 60 Pro — containing a 7nm chip apparently produced by SMIC — was a demonstration that restrictions can be worked around, if slowly and expensively. But the gap between China's frontier capability and TSMC's remains large.

Taiwan's Impossible Position

Taiwan is simultaneously the world's most critical semiconductor supplier and one of the most contested geopolitical territories. The "silicon shield" theory holds that Taiwan's chip manufacturing role deters invasion — no major power would want to destroy the facility that produces the chips they depend on. The counter-argument is that it makes Taiwan more of a target, not less.

Reshoring and Its Limits

The CHIPS Act ($52.7bn in US subsidies) and similar programs in Japan, South Korea, and the EU are attempts to reduce geographic concentration. But semiconductor fabrication requires supply chains that span dozens of countries, gases and chemicals produced in only a few places, and institutional expertise that took generations to build. A new TSMC-equivalent fab in Arizona takes years to construct, billions to staff, and may not reach full yield for a decade.

What This Means

The chip war is not a temporary trade dispute — it is a structural restructuring of the global technology order. Countries will increasingly be sorted into those that can produce frontier semiconductors, those that can access them, and those that cannot. That sorting will determine military balance, AI capability, and economic growth for decades.