Japan’s Record Defense Budget Raises Strategic Questions

Japan’s Defense Ministry is preparing to request approximately 8.9 trillion yen (about $56 billion) for the fiscal 2027 defense budget—the highest figure ever sought—according to Kyodo News. The request, which will be formally submitted to the Finance Ministry by the end of August, could grow further during year-end negotiations, with one senior government official suggesting the final figure might reach 10 trillion yen.

The record request marks the latest milestone in a sustained military buildup that has seen Japan’s defense spending climb for 14 consecutive years. The proposed budget would prioritize what officials call “new forms of warfare,” including AI-assisted command systems, interceptor drones, high-power lasers, and long-range missiles with what Tokyo terms “counterstrike capability.”

A Trajectory of Consecutive Increases

The budget request continues a pattern established after Japan’s Cabinet approved the current “Three Security Documents” in December 2022, which planned total defense spending of approximately 43 trillion yen over fiscal 2023-2027 and set a target of raising defense spending to 2% of GDP by fiscal 2027. Since then, Japan’s defense budget has exceeded 6, 7, 8, and 9 trillion yen in successive years, with the fiscal 2026 budget reaching 9.053 trillion yen—the first time it has surpassed the 9 trillion yen mark.

Prime Minister Sanae Takaichi, who took office in late 2025, has accelerated this trajectory. The 2% of GDP target was achieved in fiscal 2025, two years ahead of the original schedule. In June, the ruling Liberal Democratic Party submitted recommendations to Takaichi calling for a “5-year defense transformation,” citing countries that spend 3% or more of GDP on defense. Asahi Shimbun reported that the budget request includes many “matter requests” without specific amounts, meaning the actual final budget could expand significantly beyond the initial request.

Shift Toward Offensive Capabilities

Beyond the headline numbers, analysts point to a more significant shift in the substance of Japan’s defense posture. The budget request emphasizes offensive weapons systems and new operational concepts, signaling a departure from Japan’s post-war “exclusively defense-oriented policy.”

Japan has already deployed “25-type surface-to-ship missiles” (improved Type 12) in 2026 and plans air-launched and sea-launched variants to create what it describes as a “trinity” long-range attack system. In July, the JS Chokai destroyer conducted its first live-fire test of a US-made Tomahawk cruise missile in the Pacific—a weapon with a range exceeding 2,000 kilometers that provides Japan with a long-range land-attack capability unprecedented in its post-war history.

The 2026 Defense White Paper, released on August 4, confirms this offensive direction. The 610-page document—the thickest ever published—includes a dedicated section on “new forms of warfare” drawing lessons from the Russia-Ukraine conflict, emphasizing unmanned systems, artificial intelligence, space, cyber, and electromagnetic domain capabilities. Defense News reported that the document warns “the international community is facing its greatest trial since World War II” and does not rule out a Ukraine-like crisis in the Indo-Pacific.

Grant Newsham, senior research fellow at the Japan Forum for Strategic Studies, told Defense News that “Ukraine really spurred Japanese awareness—figuring that Taiwan was next, with everything that would portend for Japan’s security.” However, he cautioned that this awareness “has not, however, translated into a Japan Self-Defense Force that’s organized and capable of fighting a war.”

Fiscal Sustainability Concerns

The rapid expansion of defense spending has raised serious questions about Japan’s fiscal sustainability. Japan’s national debt exceeds 1,200 trillion yen—over 200% of GDP—and the government is simultaneously pursuing consumption tax reduction measures that could cost 5 trillion yen in annual revenue.

According to Xinhua News, if the 2% GDP target is recalculated based on fiscal 2026 GDP of approximately 700 trillion yen, defense spending would need to reach 14 trillion yen—a figure that would require either deficit bonds or new defense-related taxes. A Japanese Finance Ministry official told Xinhua: “Honestly, this is very difficult to handle.”

An Asahi Shimbun editorial warned that “defense spending does not necessarily lead to improvement in people’s living standards,” citing UN reports that directing the same resources to education and healthcare rather than military could create more jobs, and IMF warnings that increased defense spending could increase economic vulnerability through expanded fiscal deficits.

The demographic challenge compounds these concerns. The Defense Ministry estimates that Self-Defense Forces personnel will decrease by about 40% over the next 20 years due to declining birth rates, creating a widening gap between expanding missions and shrinking human resources.

Regional Reactions and Concerns

The military buildup has drawn sharp criticism from Japan’s neighbors. Chinese Defense Ministry spokesperson Chen Xi called the 2026 white paper “false narratives” and accused Japan of “thief crying stop thief,” according to Global Times. Chinese Foreign Ministry spokesperson Lin Jian has previously described Japan’s actions as revealing “its own ambition for military expansion,” as reported by Global Times.

Song Zhongping, a Chinese military affairs expert, warned that “by exaggerating external threats, expanding offensive capabilities and channeling advanced civilian technologies into military development, Japan is embarking on a path of military expansion driven by a new form of right-wing militarism.”

Concerns about Japan’s military-industrial complex are also growing. People’s Daily reported that Defense Ministry procurement orders for machinery and equipment in fiscal 2025 reached nearly 2.69 trillion yen—roughly three times the level of five years ago—accounting for almost half of all government procurement. The April 2026 full lifting of restrictions on lethal weapons exports has further fueled concerns about the expansion of Japan’s defense industry.

What to Watch Next

The revised “Three Security Documents” are expected to be finalized by the end of 2026, and could introduce further increases in defense spending targets. The LDP’s June proposal, which cites countries spending 3%+ of GDP on defense, suggests the current 2% target may not be the ceiling.

Christopher Hughes, an international politics professor at the University of Warwick, noted to SCMP that Japan is drawing one overarching lesson from Ukraine: “a smaller military can frustrate—and potentially exhaust—a much larger adversary through rapid technological innovation and relatively inexpensive capabilities.”

As Japan continues its military transformation, several questions remain: Will the final fiscal 2027 budget reach 10 trillion yen? Will the revised security documents raise defense spending targets beyond 2% of GDP? And how will China, South Korea, and other regional actors respond to what many view as a fundamental shift in Japan’s post-war security posture?

What is clear is that Japan’s defense buildup is no longer incremental—it represents a structural transformation of the country’s security policy with profound implications for the Asia-Pacific region. As CGTN noted, the parallel advancement of nuclear policy discussions and offensive military capabilities has intensified concerns over Japan’s departure from its post-war security constraints. The international community will be watching closely as Tokyo finalizes its budget and security framework in the coming months.