Editor's note: Xu Ying is a Beijing-based international affairs commentator for CGTN. The article reflects the author's opinions and not necessarily the views of CGTN.

As the world grapples with mounting geopolitical tensions and economic uncertainty, a troubling development is unfolding in East Asia. Between June 22 and July 1, Japan is participating in the US-led Valiant Shield military exercise. Simultaneously, the United States is deploying its Typhon intermediate-range missile system and HIMARS rocket launchers to Japan's Kanoya Air Base in Kagoshima Prefecture.

Washington and Tokyo claim that these deployments are temporary and defensive in nature. Yet history, recent precedent and the broader trajectory of Japan's military policy suggest otherwise. What is being presented as a routine military exercise increasingly resembles another step in Japan's steady march away from its postwar pacifist commitments and toward a more assertive military posture. The implications extend far beyond Japan itself. They affect the security architecture of the entire Asia-Pacific region.

The "temporary deployment" narrative is losing credibility

The Typhon missile system is not an ordinary defensive weapon. Developed after the United States withdrew from the Intermediate-Range Nuclear Forces (INF) Treaty, it is capable of launching Tomahawk cruise missiles with ranges exceeding 1,600 kilometers as well as SM-6 missiles with both anti-air and anti-ship capabilities.

The significance of such a system being introduced into Japan should not be underestimated.

Recent experience in the Philippines offers an instructive example. There, what began as a supposedly temporary deployment of Typhon missiles evolved into a long-term military presence. Now a similar pattern is emerging in Japan. Initial deployment under the framework of military exercises is followed by maintenance arrangements, logistical integration and long-term storage. Step by step, a temporary military asset becomes a permanent strategic reality.

Such incrementalism is politically convenient. It allows governments to avoid difficult domestic debates while gradually reshaping the regional military balance. Yet neighboring countries are unlikely to be reassured by semantic distinctions between "temporary deployment" and "long-term storage."

The reality is straightforward: offensive strike capabilities are moving closer to potential conflict zones, reducing warning times and increasing the possibility of dangerous miscalculations.

Japan's military transformation is no longer incremental

The deployment of advanced US missile systems is part of a broader and increasingly ambitious transformation of Japanese security policy.

Over the past several years, Japan has fundamentally redefined the scope of its military activities. The adoption of new national security strategies, the acquisition of so-called counterstrike capabilities, the expansion of missile programs and record-breaking defense budgets collectively represent a significant departure from the traditional doctrine of exclusive self-defense.

Japan's defense spending has risen at a pace unseen in the postwar era. Long-range missile procurement, hypersonic weapons development, space warfare capabilities, cyber operations and expanded deployments across the southwestern islands all point toward the construction of a military force capable of projecting power well beyond Japan's immediate territory.

This evolution raises legitimate concerns among countries that remember the devastation caused by Japanese militarism in the twentieth century.

For many Asian nations, vigilance remains necessary whenever military expansion is accompanied by rhetoric portraying neighboring countries as existential threats.

"The first island chain" is becoming more militarized

The deployment of Typhon systems, HIMARS launchers and expanded missile networks across Japan and parts of Southeast Asia reflects a broader strategic objective: strengthening the military architecture of the so-called first island chain.

Under this framework, Japan is increasingly positioned not as a rear-area support hub but as a frontline operational platform.

Such developments carry profound risks.

First, they intensify strategic distrust among regional powers.

Second, they contribute to an accelerating cycle of action and reaction.

Third, they make host nations themselves more vulnerable.

For ordinary citizens in Japan, this is a question worth asking: Does greater militarization truly produce greater security, or does it merely bring geopolitical confrontation closer to home?

Asia does not need a new powder keg

The Asia-Pacific has been one of the world's most dynamic regions precisely because it has prioritized economic development, regional integration and pragmatic cooperation.

Most countries in the region do not wish to choose sides in great-power hostility. Many Southeast Asian nations continue to advocate strategic autonomy and oppose the emergence of rival military blocs. Their primary concerns remain development, connectivity and prosperity rather than confrontation.

Yet increasing military deployments and alliance-driven military arrangements risk undermining this foundation.

The Asia-Pacific should not become an arena for missile deployments, bloc politics and zero-sum calculations.

The international community must remain vigilant

The world has a responsibility to pay close attention to the trajectory of Japan's military transformation. There is an important obligation to preserve regional strategic stability, respect historical sensitivities and avoid actions that intensify confrontation.

Japan now faces a critical choice. It can continue down a path of expanding military capabilities and deeper integration into confrontational geopolitical strategies, or it can contribute to a regional order based on dialogue, restraint and cooperative security.

The stakes extend far beyond Japan's borders. The future stability of the Asia-Pacific may depend on which path is chosen.

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