Japan is moving swiftly to bolster its military might, announcing on August 29, 2025, that it will deploy its domestically developed long-range missiles a full year ahead of schedule. The decision, revealed by the Defense Ministry, marks a historic acceleration in Japan’s defense posture as tensions continue to simmer in East Asia.
The centerpiece of this move is the Type-12 anti-ship missile, a homegrown weapon boasting a range of roughly 1,000 kilometers (about 620 miles). According to the Defense Ministry, the first batch of these missiles is slated for installation at the Japanese army’s Camp Kengun, located in Kumamoto Prefecture in the country’s southwest, by March 2026. This timeline beats the previous schedule and underscores a sense of urgency in Tokyo’s defense planning.
Why the rush? The answer, officials say, lies in the mounting challenges Japan faces from its neighbors—most notably China, but also North Korea and Russia. In June 2025, Japan observed a striking development: two Chinese aircraft carriers operating almost simultaneously near its southern islands, a first in regional military affairs. This show of naval strength, coupled with ongoing concerns about North Korean missile tests and Russian military activities, has set off alarm bells in Tokyo.
According to Associated Press, Japan’s new strategy represents a significant departure from its post-World War II pacifist constitution. For decades, the country limited the use of force strictly to self-defense. That changed in 2022, when the government adopted a sweeping five-year security plan. The document explicitly names China as Japan’s “biggest strategic challenge” and calls for a closer alliance with the United States, as well as a more proactive—some would say offensive—role for Japan’s Self-Defense Forces.
The numbers tell their own story. Japan is ramping up its defense spending, aiming to hit 2% of GDP by 2027. That’s a substantial jump from the previous level of about 1%, and it puts Japan more in line with NATO standards, even though it’s not a NATO member. The fiscal 2026 defense budget request is a record-breaking 8.8 trillion yen, or about $59.9 billion, with a clear focus on long-range missiles and advanced drones.
“Japan plans to deploy its domestically developed long-range missiles a year earlier than planned, as the country steps up efforts to strengthen its strike-back capability in response to rising challenges in the region,” the Defense Ministry stated, as reported by ABC News. The sense of urgency is palpable, and the government isn’t putting all its eggs in the domestic basket. With the Japanese Type-12 missiles still in development, Tokyo will also deploy U.S.-developed Tomahawk cruise missiles later this year. These Tomahawks, already a staple of American and allied arsenals, will serve as a stopgap measure until Japan’s own arsenal is fully operational.
But it’s not just about missiles. The Defense Ministry’s budget request also includes funding for unmanned systems—drones that can operate in the air, on the sea’s surface, and underwater. These high-tech tools are intended to boost surveillance and defend Japan’s extensive coastlines, a pressing need for a country facing both an aging population and a shrinking pool of military recruits. As Reuters notes, the use of unmanned platforms is seen as a way to “do more with less,” compensating for the challenges of an understaffed military.
Japan’s military buildup has not gone unnoticed by its neighbors. China, in particular, has repeatedly criticized Tokyo’s moves, accusing it of stoking regional tensions and departing from its pacifist roots. However, Japanese officials counter that the measures are purely defensive—intended to deter aggression and ensure the safety of Japanese citizens. They point to the increased tempo and scale of Chinese naval operations, North Korean missile launches, and Russian military maneuvers as justification for their actions.
“Japan is seeking to create a more self-sufficient military as a deterrence against China’s increasingly assertive naval activity in regional seas,” ABC News reported, quoting Defense Ministry officials. The logic is straightforward: the more capable Japan’s military, the less likely adversaries are to test its resolve.
Of course, this shift comes with political implications at home. Japan’s postwar constitution, particularly Article 9, famously renounces war “as a sovereign right of the nation.” For decades, this clause was interpreted strictly, limiting the country’s armed forces to defensive roles only. The 2022 policy shift was controversial, sparking debate among lawmakers and the public alike. Some critics worry that Japan’s increased military spending and expanded strike capabilities could provoke an arms race or entangle the country in conflicts not of its own making. Others argue that Japan has little choice but to respond to the changing security environment.
Adding to the complexity, the United States—Japan’s treaty ally—has long pressed Tokyo to shoulder a greater share of the regional security burden. The latest moves align with U.S. calls for more robust Japanese defense capabilities, particularly in the face of China’s rapid military modernization.
“The country is boosting military spending to 2% of GDP by 2027 from an earlier level of about 1% under the buildup plan, while facing pressure from the United States, a treaty ally, to do more,” Associated Press reported. This balancing act between domestic sentiment, constitutional constraints, and alliance obligations is a perennial challenge for Japanese leaders.
Meanwhile, the technical details of the Type-12 missile program are drawing attention from defense analysts. The missile’s 1,000-kilometer range puts much of the East China Sea and parts of the Korean Peninsula within reach, potentially altering the regional military balance. The deployment at Camp Kengun in Kumamoto Prefecture is strategically significant, as the location allows rapid response to developments near the southwestern islands—areas that have seen increased Chinese naval and air activity.
With the deployment of Tomahawk missiles later this year, Japan is signaling that it won’t wait for the completion of domestic programs to enhance its deterrence. This layered approach—combining U.S. and Japanese weaponry with advanced unmanned systems—reflects a pragmatic, multifaceted response to a rapidly evolving security landscape.
As Japan accelerates its missile deployment and expands its military toolkit, regional powers are watching closely. The coming months will reveal how these moves affect the delicate balance of power in East Asia—and whether they succeed in deterring potential adversaries. For now, one thing is clear: Japan’s days of quiet defense are over. The country is stepping confidently onto the regional stage, determined to defend its interests and shape its own security destiny.