Japan on Tuesday approved a major easing of its arms export rules, allowing in principle the overseas transfer of finished defense equipment, including lethal weapons, in a further break from the country’s long-standing postwar restraints.
The decision, approved by the Cabinet, revises the Three Principles on Transfer of Defense Equipment and Technology and their implementation guidelines. It removes the framework that had limited exports to five non-combat categories and broadens the scope for overseas sales of complete systems, parts, and related technologies.
The government is expected to create a new interagency framework involving senior officials from the defense and relevant ministries to strengthen its ability to promote weapons exports, according to local reports.
Following the decision, Prime Minister Sanae Takaichi wrote in her social media post: “No single country can now protect its own peace and security alone, and partner countries that support each other in terms of defense equipment are necessary.”
What the New Rules Allow
Under the new guidelines, Japan will scrap restrictions that had limited exports to five categories, including rescue, transport, warning, surveillance, and minesweeping. That means exports of items classified as weapons under Japanese law, including warships and missiles, will in principle be allowed.
Defense equipment will now be classified into weapons and non-weapons categories depending on whether it has lethal or destructive capability. Non-weapons such as air-surveillance radar will face no destination restrictions, while exports classified as weapons will be limited to countries that have signed defense equipment and technology transfer agreements with Japan.
So far, Tokyo has signed such agreements with 17 countries.
Prime Minister Sanae Takaichi on April 6, in the afternoon, at the National Diet. (©Sankei/Ataru Haruna)
As a rule, exports to countries deemed to be engaged in active armed combat will remain prohibited. But the revised policy allows exceptions in what the government calls “special circumstances” tied to security needs, with any such case to be reviewed by the National Security Council (NSC).
Once the NSC determines that an export may proceed, lawmakers must be notified of the details.
A Broader Global Push
The latest shift comes as Tokyo seeks to broaden defense equipment exports. On Saturday, Australia and Japan finalized contracts for a major frigate deal under which Mitsubishi Heavy Industries will supply upgraded Mogami-class warships, marking one of Japan’s most significant postwar arms deals.
That push has been building for several years. In November 2023, Japan’s defense ministry announced the delivery of the first air-surveillance radar system to the Philippines under a 2020 contract.
The Japan Maritime Self-Defense Force’s Mogami-class frigate serves as the base design for the joint Japan-Australia development of the Australian Navy’s next-generation frigate (Courtesy of the Maritime Staff Office)
Under then-Prime Minister Fumio Kishida in December 2023, the government also eased export restrictions to allow Japan-made Patriot missiles to be shipped to the US, helping Washington replenish stocks as it aided Ukraine.
The country has likewise sought to expand its participation in high-end defense manufacturing. A key example is the Global Combat Air Program, a joint project with Britain and Italy to develop a next-generation fighter, partly Tokyo’s push to build advanced military technology through new strategic partnerships.
A model of the next-generation fighter jet being jointly developed by Japan, the UK, and Italy. (©Japan Forward)
Industry Hurdles Remain
While the overhaul marks a historic policy shift, observers say major obstacles remain. As the latest conflict in the Middle East has shown, weapons stockpiles can be exhausted in weeks, while restocking them can take years.
Compared with established producers like the US and neighboring South Korea, Japan lags well behind, with limited manufacturing capacity and too few companies willing to commit to a business long hampered by weak and uncertain demand.
Yoshiaki Yano, a former major general in the Ground Self-Defense Force, says Japan has strong component technologies, but “simply lifting the ban will not be enough.”
Unless the government provides financial support, gives companies confidence to invest for the long term, and actively helps open overseas markets, the new policy alone is unlikely to transform the industry, he said.
At the same time, Japanese weapons and components have seen little, if any, battlefield validation of their effectiveness. If deeper multi-national collaboration helps generate that kind of real-world data, Yano said, “that would ultimately be a win-win for Japan.”
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Author: Kenji Yoshida
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