Japan's Defence Export Reset - EUROPE SAYS
Image Source: Getty ImagesJapan’s defence export policy has gradually, yet steadily, undergone a fundamental transformation over the past decade, culminating in a major liberalisation inApril 2026under the. . .
Image Source: Getty ImagesJapan’s defence export policy has gradually, yet steadily, undergone a fundamental transformation over the past decade, culminating in a major liberalisation inApril 2026under the current Takaichi government. Although modifications to Japan’s self-imposed limits started more than a decade ago, the most recent adjustment represents the first time since World War II that Japan has actually allowed the transfer of lethal military weaponry to partner countries. The change reflects not only an acknowledgement of the deterioration of the country’s regional security environment but also a growing recognition that defence industrial capacity is now an integral component of national power and strategic deterrence. For decades, Japan followed one of the world’s most restrictive arms export regimes under the Three Principles on Arms Exports, which prohibited arms transfers to communist countries, states under United Nations embargoes, and countries involved in international conflicts. These restrictions were progressively expanded into what became an almost complete ban on defence exports. Although this policy reflected Japan’s post-war pacifist identity as enshrined in Article 9 of the Constitution, it increasingly became inconsistent with the strategic realities of the post-Cold War era. Due to the lack of export markets, production costs remained high, and Japanese defence industries were shut out of global supply chains and defence research initiatives. Although this policy reflected Japan’s post-war pacifist identity as enshrined in Article 9 of the Constitution, it increasingly became inconsistent with the strategic realities of the post-Cold War era. The first major departure came in2014when the Abe administration replaced the old framework with the Three Principles on Transfer of Defence Equipment and Technology. Instead of imposing blanket prohibitions, the new policy allowed exports that contributed to international peace, Japan’s security, and international cooperation while maintaining strict end-use monitoring and case-by-case government approval. Nevertheless, exports remained highly restricted. In practice, Japan could transfer mainly non-lethal equipment such as surveillance systems, transport aircraft components, radar systems, rescue equipment, and minesweeping technology. However, complex approval procedures and political caution meant that very few significant defence export deals materialised despite the policy change. The regional security environment leading up to 2022 fundamentallyalteredTokyo’s calculations. China’s rapid military modernisation, increasingly coercive activities around the Senkaku Islands and Taiwan, North Korea’s expanding missile programme, and Russia’s growing military cooperation with China highlighted the limitations of relying solely on domestic production. Concurrently, the2022 National Security Strategyclearly acknowledged defence technology and manufacturing as strategic assets that call for increased international collaboration and long-term industrial capacity. The conflict in Ukraine, which has continued to highlight the significance of robust defence manufacturing and global production networks, has strengthened this line of reasoning. Subsequently, Japan firstrevisedthe export framework in late 2023 and March 2024 by permitting the export of jointly developed defence equipment under certain conditions. The Global Combat Air Programme (GCAP), in which Japan, the United Kingdom, and Italy agreed that sixth-generation fighter aircraft could someday be supplied to third countries subject to stringent government approval, is the most notable example. This was a big shift from the prior regulations, which mainly prohibited the export of finished lethal platforms, even if they were developed collaboratively. The conflict in Ukraine, which has continued to highlight the significance of robust defence manufacturing and global production networks, has strengthened this line of reasoning. The defining moment, however, came in April 2026, when the Japanese governmentcomprehensively revisedthe Three Principles and their Implementation Guidelines. The new framework abolishes the previous restriction that had effectively confined exports to five non-lethal categories. Instead, almost all categories of defence equipment — including missiles, warships, fighter aircraft, armoured vehicles, and other lethal systems — can now be exported following case-by-case review. Transfers are restricted to nations that have concluded agreements with Tokyo on defence equipment and technology transfers, while exports remain forbidden to nations involved in armed conflict. Decisions still require examination by the National Security Council, stringent end-use verification, transparency requirements, and disclosure to the Diet. At the same time, the Takaichi administration has emphasised that Japan’s compliance with international export control regimes and its status as a peace-loving nation remain intact. The revised policy reflects three interrelated strategic objectives. First, Tokyo seeks to strengthen deterrence by bolstering the defence capabilities of like-minded partners. Unlike in previous decades, defence exports are increasingly viewed as instruments of strategic statecraft rather than merely commercial transactions. Supplying maritime surveillance systems, warships, or missiles to countries such as the Philippines helps balance China’s growing military presence in the East and South China Seas. Defence exports therefore complement Japan’s Official Security Assistance (OSA) programme byenabling partnersnot only to receive grants but also to procure advanced Japanese military equipment suited to their operational requirements. Second, the reforms aim to preserve the country’s domestic defence industrial base. Historically, the Self-Defence Force has been the primary source of procurement for Japan’s defence businesses, which has restricted economies of scale and diminished profitability. Opening export markets makes possible larger production runs, lower unit costs, incentives for technological innovation, and the maintenance of industrial capacity through protracted crises. In an era when supply-chain resilience has become a strategic priority, sustaining domestic production capacity is inseparable from national security. Third, defence exports reinforce Japan’sevolving approachto its alliance with Washington. Tokyo is gradually positioning itself as a contributor to regional defence capabilities rather than depending solely on the United States as the region’s main security anchor. Exporting defence equipment creates long-term ties that require sustained maintenance, training, logistics, spare parts, and interoperability support. These institutional linkages extend security partnerships well beyond traditional diplomacy. For Southeast Asian countries confronting sustained grey-zone pressure, for instance, Japanese equipment offers a politically acceptable alternative to reliance on either Chinese or American technology. The Philippines illustrates this evolving approach most prominently. Following the April 2026 reforms, Tokyo and Manila established a formalframeworkto negotiate the transfer of Japanese Maritime Self-Defence Force destroyers, potentially marking Japan’s first export of major lethal naval platforms under the revised policy. The 2026 revision represents more than a regulatory adjustment; it signifies a conceptual transformation in Japanese security policy, elevating defence industrial cooperation from a commercial activity to an increasingly strategic instrument of Japan’s foreign and security policy. Nevertheless, importantconstraintsremain. The revised framework does not pave the way for unrestricted arms exports. Transfers still require strict government approval, adherence to international law, end-use monitoring, and limitations on retransfer to third countries. Domestic political sensitivities also remain significant, as public opinion is divided over moving further away from Japan’s post-warpacifistidentity. Opposition parties argue that increased defence exports risk drawing Japan into international wars and progressively undermining the spirit of Article 9. China, too, has publicly criticised the measures as evidence of Japanese remilitarisation, despite Tokyo’s emphasis on defensive deterrence and bolstering a rules-based international order. The 2026 revision represents more than a regulatory adjustment; it signifies a conceptual transformation in Japanese security policy, elevating defence industrial cooperation from a commercial activity to an increasingly strategic instrument of Japan’s foreign and security policy. Legislative safeguards notwithstanding, Japan has clearly progressed from a reluctant player to an active security partner in the regional and global security landscape. Pratnashree Basu is an Associate Fellow at the Observer Research Foundation. The views expressed above belong to the author(s). ORF research and analyses now available on Telegram!Click hereto access our curated content — blogs, longforms and interviews.