Japan can be America's arsenal

Rie Yano · Noahpinion · March 04, 2026 at 05:24 · ⏱ 14 min read | Read on Substack ↗

Summary

The article argues that the U.S. cannot reindustrialize alone and that Japan is the ideal partner for defense manufacturing due to its industrial depth, political stability, speed, and recent policy shifts. This implies a structural shift in U.S.-Japan industrial integration, benefiting Japanese suppliers of critical materials, components, and manufacturing capacity, as well as U.S. defense tech companies that establish partnerships in Japan.

•Japan plans to increase defense spending to 2% of GDP by 2027, up from below 1% for decades.
•Japan's inward FDI stock is low at ~$350 billion, with an explicit target to double to $650-700 billion by 2030.
•TSMC invested $17 billion in Kumamoto to build advanced 3-nanometer chip processing, the most advanced foundry outside Taiwan.
•Toray's T1100 carbon fiber is used in the U.S. Army's Future Long-Range Assault Aircraft (FLRAA) and multiple Boeing and Lockheed systems.
•Japan produces almost half of the world's industrial robots, led by FANUC, Yaskawa, and Kawasaki, critical for U.S. defense automation.
•Poland's defense spending surged to ~4% of GDP after 2022, serving as a playbook for Japan's rapid capacity expansion.

Read time 14 min

Length 14,448 chars

Category macro

Trade Ideas

Rie Yano Substack author, Noahpinion

Palantir's Japanese operations are described as 'one of its strongest international businesses.' The article cites Palantir and Anduril as early movers in U.S.-Japan defense partnerships, indicating s

Palantir's Japanese operations are described as 'one of its strongest international businesses.' The article cites Palantir and Anduril as early movers in U.S.-Japan defense partnerships, indicating strong growth potential from deeper integration. Risk: Government contract concentration; valuation; competition in defense software.

Rie Yano Substack author, Noahpinion

Mitsubishi Heavy Industries operates dense, high-throughput shipyard capacity that the U.S. Navy already uses for maintenance and overhaul of vessels in the Indo-Pacific. Japan's rearmament drive will

Mitsubishi Heavy Industries operates dense, high-throughput shipyard capacity that the U.S. Navy already uses for maintenance and overhaul of vessels in the Indo-Pacific. Japan's rearmament drive will increase demand for its shipbuilding and defense production. Risk: Geopolitical risk in Indo-Pacific; long project cycles.

Rie Yano Substack author, Noahpinion

TSMC's $17 billion investment in Kumamoto advanced 3nm fabs is a signal of U.S.-Japan industrial integration. The article notes that Japan's Rapidus project is also pulling in global partners, reinfor

TSMC's $17 billion investment in Kumamoto advanced 3nm fabs is a signal of U.S.-Japan industrial integration. The article notes that Japan's Rapidus project is also pulling in global partners, reinforcing TSMC's role as a key fabrication partner for defense-critical chips. Risk: Semiconductor cycle; Taiwan geopolitical risk; technology competition.

Rie Yano Substack author, Noahpinion

Shin-Etsu Chemical supplies roughly half of the world's silicon wafers and photoresists, sitting upstream of nearly every advanced logic and memory fab including TSMC, Samsung, and Intel in the U.S. —

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Rie Yano Substack author, Noahpinion

Toray's T1100 carbon fiber is embedded across multiple U.S. defense platforms including the Army's FLRAA, Boeing, and Lockheed systems, making it a direct beneficiary of increased U.S.-Japan co-manufa

Toray's T1100 carbon fiber is embedded across multiple U.S. defense platforms including the Army's FLRAA, Boeing, and Lockheed systems, making it a direct beneficiary of increased U.S.-Japan co-manufacturing in defense. Risk: Government contract dependency; raw material cost fluctuations.

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