GLOBIS SV G1 Summit part 4: "Navigating a strategic roadmap for the US‑Japan alliance”

The G1 Summit, convened by GLOBIS, is a leadership forum grounded in action. Its principles are to make proposals rather than criticize, to act rather than stay theoretical, and to cultivate awareness as leaders responsible for society. What keeps me engaged with G1 is its focus on long‑term responsibility, particularly where Japan’s global role intersects with business, security, and leadership.

I attended the session “Navigating a Strategic Roadmap for the US‑Japan Alliance” as a GLOBIS MBA alumna and on behalf of Japan Consulting Office. This session felt especially consequential. Unlike abstract geopolitical debates, the conversation focused on constraints, trade‑offs, and decisions Japan must make even when the options are imperfect.

The discussion made it clear that the alliance is strong, but it is also evolving under pressure from security realities, economic shifts, and domestic political considerations in Japan.

Alignment beneath the turbulence

One point repeated early in the session was that despite visible turbulence, alignment between Japan and the US remains intact. The challenge is not whether the alliance exists, but whether it is deep enough to withstand structural change.

Several speakers emphasized the need for deeper integration, not only at the government level but through business ties and people‑to‑people connections. A stable US presence in Japan was described as foundational, not symbolic. What struck me was how much emphasis was placed on continuity. In a world obsessed with disruption, the alliance depends on sustained, quiet work.

A new world order and an alliance audit

There was a clear recognition that the postwar model, where the US provided security for much of the world, is no longer sufficient. This is not necessarily a retreat, but a rebalancing.

The idea of an “alliance audit” resonated with me. Is the alliance still fit for purpose? The answer seemed to be yes, but only because Japan is stepping up. Increased investment in defense and technology is not just about burden sharing. It is about agency.

Japan is no longer simply under a security umbrella. The relationship has fundamentally changed, even if political clarity has not fully caught up with military reality.

Japan’s domestic constraints

What added realism to the session was the acknowledgment of Japan’s internal constraints. Decisions around defense spending, constitutional interpretation, and political alignment are not made in a vacuum.

There was candid discussion of the dilemmas Japan faces if it aligns too closely with certain US leadership styles, while still being constrained by geography, energy dependence, and regional security risks. Japan cannot simply opt out of decisions, even when all options carry cost.

This tension felt very real, especially the concern that Japan not lose access to critical resources such as energy in the process of strategic repositioning.

Defense, AI, and the private sector

The most forward‑looking part of the discussion focused on the intersection of AI and defense. The world is becoming more dangerous, and autonomy on the battlefield is no longer theoretical.

What stood out was how much of the momentum is coming from the private sector. Collaboration in cybersecurity and defense technology is already deepening beneath the headlines. Japanese manufacturing capability was repeatedly highlighted as a strength, and notably, Japan’s government was described as becoming a better client than many others.

Specific examples of cooperation grounded the discussion. These were not abstract aspirations but real use cases tied to security in the Pacific. It reinforced the idea that behind geopolitical tension, there are concrete opportunities for collaboration.

Fragmentation as the real risk

One of the clearest warnings was about fragmentation. The biggest risk to Japan‑US cooperation is not competition from adversaries, but incompatible systems.

If Japan and the US build fragmented technological ecosystems while others standardize, they weaken themselves. AI‑enabled autonomous systems require not just algorithms, but energy, infrastructure, and interoperability. Technology without agency is not strategy.

This point felt particularly relevant for Japan, where perfectionism can sometimes slow standardization. In a defense context, that cost could be high.

Japan’s unique strengths and hard choices

There was honest acknowledgment that Japan does not have the resources to develop large foundational AI models at scale. At the same time, there was strong conviction that Japan still needs its own systems, even if they are not economically optimal.

Japan’s strength lies in production data and real‑world manufacturing environments. That gives Japan an advantage in applied AI, especially in the field. This applies directly to defense, where recruitment challenges make autonomy and robotics increasingly necessary. The cost of human lives is too high to ignore these technologies.

The discussion around export restrictions on defense technology was especially important. With only one domestic customer, Japan’s defense industry cannot scale. Changing policy to allow exports is seen as a necessary step toward building a sustainable defense technology ecosystem. This is not a legal change yet, but a policy shift, and one that signals how serious the situation has become.

Combining Japanese and American strengths

One of the most constructive conclusions was simple. Japan excels at robotics. The US excels at AI. The alliance is strongest when those strengths are combined deliberately.

This is not automatic. It requires trust, shared standards, and cultural translation. Bridging differences between Silicon Valley and Japan was explicitly called out as a leadership challenge, not a technical one.

From my own work, this resonated deeply. The friction is real, but so is the opportunity.

What I took away

What stayed with me after this session was how pragmatic the tone was. This was not about ideals. It was about responsibility.

Japan is navigating a narrow path. It must strengthen its alliance with the US while increasing its own autonomy. It must invest in defense without losing its identity. It must adopt AI and autonomy without fragmenting systems or surrendering agency.

G1 provided a space where these tensions could be discussed honestly, without pretending there are easy answers.

For me, this session reinforced something I see consistently in my work. Japan’s leadership challenge today is not a lack of capability, but the courage to make constrained decisions early rather than perfect decisions too late.

The US‑Japan alliance is changing. The question is not whether it will endure, but whether it will evolve fast enough to shape the world that is already arriving.

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