A Historical Turning Point in Japan's Defense Equipment Export Policy: Strategic Implications of the Lifting of "Five Areas" Regulations

On February 20, 2026, a historic turning point in Japan's defense policy is taking clear shape. The Liberal Democratic Party has solidified its policy to propose that the government accept, in principle, the export of weapons with lethal capabilities, as revealed by multiple sources. This move indicates a significant shift from the pacifist defense policy that post-war Japan has maintained and is expected to have profound implications for the Japan-U.S. alliance framework and the security environment in Northeast Asia.

Under the current operational guidelines of the three principles of defense equipment transfer, the exportable defense equipment has been limited to five areas: rescue, transport, alert, surveillance, and mine clearance. The government plans to revise these operational guidelines this spring, aiming to abolish the "five areas" regulation. According to reports from Yomiuri Shimbun, the LDP plans to compile its proposal to the government by March. The removal of this regulation would theoretically allow for the export of "weapons" as defined by the current Self-Defense Forces Law, specifically equipment designed for the purpose of killing people or destroying property, such as highly lethal weapons like tanks, escort ships, and missiles.

It is noteworthy that this is not merely a relaxation of regulations but involves the establishment of a tiered review system based on the lethality of the equipment. According to multiple government and LDP officials, for highly lethal weapons like missiles, the decision on whether to export will be made at the National Security Council (NSC), which includes the Prime Minister and relevant ministers, in order to avoid escalating international conflicts and to gain public understanding. For advanced weapons such as fighter jets and hypersonic glide vehicles (HGVs), a proposal is being considered that would require cabinet approval as a stricter procedure. Meanwhile, for non-weapon equipment such as bulletproof vests and surveillance radars, the policy is to allow decisions to be made at the administrative level.

This three-tiered review system reflects the Japanese government's efforts to balance the expansion of defense equipment exports with international responsibilities. The export destinations are expected to be limited to countries with which Japan has signed defense equipment and technology transfer agreements. These agreements require that the exported equipment be used in accordance with the United Nations Charter, which promotes international peace and security, and Japan has already concluded such agreements with over a dozen countries, including the United States, the United Kingdom, and India.

Prime Minister Sanae Takichi has positioned the enhancement of Japan's military capabilities at the core of its security policy since taking office in October 2025. The LDP's landslide victory in the House of Representatives election on February 8 has significantly strengthened Prime Minister Takichi's political foundation. The Prime Minister has expressed her intention to revise security and defense policies by December, lifting the ban on the export of lethal weapons, and this recent move can be seen as a realization of that commitment.

The international context of this policy shift is also important. Ukrainian President Volodymyr Zelensky expressed his intention to welcome Prime Minister Takichi's move to relax weapon export regulations in an exclusive interview with Kyodo News on February 19. President Zelensky stated that air defense is "extremely important" in countering Russia's full-scale invasion and that it would be "very beneficial" if Prime Minister Takichi decides to open a "corridor for dialogue" in this area. The President also mentioned the transfer of unmanned surface vehicle (USV) technology to Japan, warning that North Korea's acquisition of military know-how through its involvement in Russia's invasion of Ukraine poses a potential risk to Japan's security.

From the perspective of the Japan-U.S. alliance, this policy shift holds significant strategic importance. The United States has long sought increased defense burdens and improved interoperability from its allies. If Japan can provide high-quality defense equipment to allied and friendly nations, the Japan-U.S. alliance will evolve into a more symmetrical relationship, strengthening the material foundation for realizing the "Free and Open Indo-Pacific" strategy. In particular, advanced maritime platforms like the Japan Maritime Self-Defense Force's top-class escort ships, as well as Japan's globally competitive surveillance and detection technologies, could become attractive options for partner countries in Southeast Asia and the Oceania region.

From the perspective of maritime security in Northeast Asia, this policy shift can be understood as part of a regional balancing act against China's maritime expansion. In recent years, China has actively engaged in maritime activities in the East China Sea and South China Sea, simultaneously modernizing its military capabilities and expanding its defense industry exports. By fully entering the defense equipment export market, Japan can provide regional countries with alternative options to Chinese-made equipment, ensuring technical and operational diversity.

However, this policy shift also comes with significant challenges and risks. First, there is the need for consistency with domestic pacifist public opinion. Japan's post-war pacifist constitution and the three principles of arms exports have become an important part of Japan's identity. The government is attempting to form a national consensus by emphasizing a strict review system based on lethality and adherence to the principles of the United Nations Charter, but political backlash when actual export cases arise remains uncertain.

Second, there is the management of the end-use of exported equipment. The defense equipment and technology transfer agreements include restrictions on third-country transfers, but effective end-use monitoring requires diplomatic and technical resources. It is difficult to completely eliminate the risk that exported equipment could be used in unintended conflicts, and the impact on Japan's international reputation if such situations occur could be severe.

Third, there is the realistic capability of the defense industrial base. Japan's defense industry has struggled to cultivate international competitiveness due to the limited size of the domestic market and strict export regulations. While regulatory relaxation is a necessary condition, it is not sufficient. Many factors, such as price competitiveness, after-sales service systems, and international marketing capabilities, are needed for export success, and building these will require time and investment.

The developments in the coming months will be crucial. The specifics of the review criteria and procedures established in the LDP's proposal in March and the subsequent revision process of the operational guidelines will determine the effectiveness of this policy shift. Additionally, which country the first export case is approved for and what type of equipment will serve as an important precedent indicating the direction of Japan's new defense equipment export policy.

Japan is now in the midst of the largest defense policy shift since the post-war period. This change is both an adaptation to the changing geopolitical environment and a fundamental redefinition of Japan's international role. It is essential to continue monitoring the impact of this policy shift on maritime security in Northeast Asia and the future of the Japan-U.S. alliance.