Japan Opens Lethal Arms Exports to 17 Partners in Historic Defense Policy Shift

Warships, Missiles and Fighter Jets Enter the Export Market

Japan approved a sweeping change to its defense export rules on April 21, 2026, allowing manufacturers to sell lethal weapons, including warships, missiles and fighter jets, to 17 countries with defense equipment and technology transfer agreements. The cabinet of Prime Minister Sanae Takaichi removed a system that had limited exports to five categories: rescue, transport, warning, surveillance and minesweeping equipment.

The decision marks the most significant transformation of Japanese defense export regulations since the postwar era. It opens markets for an industry that spent decades producing almost exclusively for the Japan Self Defense Forces, while testing the country's longstanding commitment to restraint in military affairs.

Australia, the United States, Britain and the Philippines are among the eligible partners. Each proposed transfer will still face government screening, restrictions on onward transfers and rules generally barring sales to countries involved in conflict. Exceptions may be granted when the government considers them essential for national security.

Takaichi presented the change as a response to a security environment in which Japan needs partners able to support one another with military equipment. Explaining why her government considers those relationships necessary, the prime minister said:

No single country can now protect its own peace and security alone, and partner countries that support each other in terms of defence equipment are necessary.

Chief Cabinet Secretary Minoru Kihara said the decisions respond to accelerating changes in Japan's security surroundings while protecting national security and contributing to regional stability. The practical challenge now is to turn broader export permission into sales that meet those goals and satisfy the government's safeguards.

How Japan Reached the April 21 Decision

Japan's export restrictions developed over several decades. Rules introduced in 1967 prohibited sales to communist countries, countries under United Nations arms embargoes and countries involved in international conflicts. In 1976, Japan expanded that approach into a voluntary blanket ban on weapons exports.

Article 9 of the constitution, which renounces war as a sovereign right, helped shape the political commitment behind that restraint. Japan's attachment to peaceful resolution of international disputes kept lethal arms exports heavily restricted for nearly half a century and confined defense manufacturers largely to a single domestic customer.

The government began loosening the framework in 2014, permitting nonlethal equipment within the five specified categories. Rescue helicopters, transport vehicles and minesweeping technology could be transferred, while weapons designed for combat remained subject to strict prohibitions.

The main steps leading to the latest decision were:

• 1967: Japan prohibited arms exports to communist countries, countries under UN arms embargoes and countries involved in international conflicts.
• 1976: A voluntary blanket ban broadened the restrictions on weapons exports.
• 2014: Limited exceptions allowed nonlethal exports in five categories.
• March 2026: An NHK survey found 53 percent opposed easing lethal arms export restrictions and 32 percent supported the change.
• April 21, 2026: Takaichi's cabinet approved removal of the five category system.

The latest revision replaces those equipment categories with classifications based on lethal capability. Ministers and officials will assess proposed sales individually, with the National Security Council administering the approval process.

What the New Rules Allow and Require

Japanese defense equipment will now fall into two classifications according to whether it has lethal capability. Finished weapons can go to the 17 countries holding the required defense equipment and technology transfer agreements. Countries without such agreements may still receive nonlethal equipment.

Those agreements require safeguards governing the handling of weapons and protection of technological knowledge. Recipients must also pledge to use equipment consistently with the United Nations Charter, the framework governing relations among UN members.

Japan retains three core principles: strict screening of exports, controls on transfers to third countries and a general prohibition on sales to nations engaged in conflict. Controls on third countries mean that a buyer's ability to pass Japanese equipment to another country remains restricted.

The national security exception gives the government room to approve transfers in extraordinary circumstances. Decisions will require assessment of the equipment, the recipient and Japan's security interests, rather than simply checking whether an item belongs to one of five permitted categories.

Parliament will be notified after the National Security Council approves an export, rather than beforehand. Opposition parties have criticized that procedure as reducing legislative oversight, placing the dispute partly on who gets to scrutinize a sale before it takes place.

The Philippines Prepares for New Access

The Philippines is positioned to become an early beneficiary. Japanese officials have confirmed that Manila is exploring the acquisition of used Japanese warships and TC 90 surveillance aircraft. Those transfers would strengthen the Philippine Navy's presence in the South China Sea, where territorial disputes with China continue to escalate.

Philippine Defense Secretary Gilberto Teodoro welcomed the change, highlighting both the quality of Japanese equipment and the ability to keep it operating. He said:

The Department of National Defense welcomes the results of the Review of the Three Principles on Transfer of Defense Equipment and Technology and its Implementation Guidelines. This will allow the Philippines to access defense articles of the highest quality and supportability that will strengthen domestic resilience and contribute to regional stability through deterrence.

Supportability refers to the maintenance, spare parts and technical assistance needed to keep equipment usable. Deterrence means having enough defensive strength to make an opponent think twice before taking military action.

The Philippines occupies a critical position in the First Island Chain, a geographic arc stretching from Japan's southwestern islands through Taiwan and down to Malaysia. That chain constrains Chinese naval access to the western Pacific. Stronger Philippine maritime capabilities would complement Japan's defense posture and reinforce collective deterrence against China's expanding regional influence.

Manila's interest also fits a wider relationship with Tokyo. Japan has deepened cooperation through agreements covering troop access and exchanges of military supplies, giving the prospective equipment transfers a place within an existing security partnership.

Australia's Frigates and Other Potential Buyers

Australia signed contracts last week for three upgraded Mogami class frigates from Mitsubishi Heavy Industries, alongside joint production of eight additional vessels. The agreement, valued at approximately $7 billion, covers 11 ships and provides a major example of the international business Japan's defense industry is seeking.

Australian Defense Minister Richard Marles described the goal as a seamless defense industrial base between the two countries. In practical terms, the arrangement links procurement with production cooperation, rather than limiting the relationship to delivery of finished ships.

The Australian agreement was structured under existing provisions for joint development. The new export framework is expected to make future transactions easier and create opportunities for joint production for sales to third countries.

New Zealand is considering acquiring a version of the Mogami class frigate for its navy, following Australia's lead. Wellington would first need to sign the partnership agreement required to receive finished weaponry. Indonesia has also expressed interest in Japanese defense systems, while Poland and other European countries are exploring Japanese technology to modernize their forces.

As of April 23, no completion dates were given for the prospective Philippine, New Zealand, Indonesian or Polish purchases. Australia's signed contracts are therefore the concrete procurement agreement alongside those expressions of interest.

China Objects as the US and Germany Welcome the Change

China condemned the export reforms, adding another dispute to strained relations with Japan. Foreign Ministry spokesperson Guo Jiakun expressed concern about Tokyo's direction and warned against what Beijing regards as a return to militarism. He said:

China is deeply concerned about this. The international community, including China, will remain highly vigilant and resolutely resist any reckless actions by Japan towards a new form of militarism.

Relations had already deteriorated after Takaichi stated in November that a Chinese attack on Taiwan threatening Japan's survival could trigger a Japanese military response. Chinese diplomats have since used increasingly aggressive rhetoric and coercive measures intended to discredit her reform program. Those efforts may have strengthened her domestic political position.

United States Ambassador to Japan George Glass welcomed the export change as a historic step. He said it would strengthen the defense capabilities of countries cooperating with the Japan and US alliance and improve their collective capacity to maintain regional peace.

German Ambassador to Tokyo Petra Sigmund also praised the reforms, saying they create opportunities for deeper cooperation aimed at greater global stability. Washington and Berlin's responses align with wider Western efforts to maintain deterrence against authoritarian expansion and diversify defense supply chains under pressure from simultaneous conflicts in Eastern Europe and the Middle East.

Why Overseas Orders Matter to Japanese Factories

Mitsubishi Heavy Industries, Kawasaki Heavy Industries and Mitsubishi Electric have long produced advanced submarines, fighter aircraft and missile systems almost exclusively for the Japan Self Defense Forces. Depending on one customer limited the number of units they could manufacture and made each unit more expensive.

A small production run spreads factory expenses and development costs across fewer ships, aircraft or missiles. More orders can spread those costs across a larger number of products, potentially reducing the price Japan pays for its own equipment.

Jeffrey Hornung, an expert on Japanese security policy at the Rand Corporation, explained the commercial reasoning behind the policy:

By expanding the markets, they hope to benefit from economies of scale and pump some new life into the industrial base of Japan, especially with many of the smaller companies.

Japan's dependence on domestic demand also limited manufacturing capacity, which could prove inadequate during a prolonged military crisis. Steady export orders could support larger production lines and create surge capacity, meaning the ability to increase output when an emergency creates urgent demand.

Major contractors have already expanded their export departments in anticipation of sustained overseas business. Weapons sales generally bring continuing needs for maintenance and technical support, creating relationships that last beyond the initial purchase and strengthen ties with buyer countries.

Heigo Sato, a defense issues specialist at Takushoku University, said arrangements for exchanging weapons and ammunition smoothly during peacetime improve combat readiness. They also increase the likelihood of receiving assistance during an unexpected conflict, making the trade a mechanism for mutual security support as well as a commercial transaction.

Export Growth Meets Japan's Own Military Modernization

Japan is increasing defense spending to 2 percent of gross domestic product, with further rises anticipated in the 2026 security strategy update. Gross domestic product measures the value of goods and services produced in an economy, so the target ties military spending to the size of Japan's economy.

Japan is also developing a next generation fighter jet with Britain and Italy for deployment in the middle of the 2030s. The project is designed to share development costs and provide access to advanced technology, linking Japan's domestic modernization with international industrial cooperation.

The export reforms complement those plans by widening the customer base needed to sustain production. Tokyo wants its industry to meet the requirements of Japan's own military expansion while supplying allied countries.

Wars in Ukraine and the Middle East have depleted American weapons stockpiles and strained US production capacity. Japanese manufacturers are now positioned to fill supply gaps and compete in markets traditionally dominated by American suppliers.

European and Asian allies are also diversifying procurement amid uncertainty about the durability of Washington's security commitments under President Donald Trump. Japan's policy arrives at a moment when prospective buyers are seeking both equipment and additional sources of supply.

Public Opposition Centers on Peace and Oversight

A March survey by national broadcaster NHK found that 53 percent of Japanese respondents opposed easing restrictions on lethal arms exports, while 32 percent supported the change. Opposition exceeded support by 21 percentage points, showing the domestic resistance facing Takaichi's government.

Critics accuse the prime minister of weakening Japan's proud history of pacifism and violating the spirit of Article 9. Their concern is that products made in Japan could be used to kill people abroad, changing how other countries view Japan.

Veteran peace activist Koji Sugihara warned of a historic turning point and possible diplomatic consequences. He said:

People do not want products manufactured in Japan to be used to kill people in foreign countries. The pacifist reputation of Japan has historically aided its diplomatic and business relations.

Demonstrators have staged rallies across Japan. They have expressed concern that Takaichi's hawkish outlook and open support for Trump could pull the country into foreign conflicts.

Opposition parties have also challenged the National Security Council's authority to approve exports with parliamentary notification only afterward. Their objections connect the broader debate over pacifism with the practical issue of how elected lawmakers oversee individual transfers.

Takaichi Defends the Safeguards

Takaichi has argued that expanding defense exports leaves Japan's commitment to peace intact. Seeking to reassure the public about the new system, she said:

There is absolutely no change in our commitment to upholding the path and fundamental principles we have followed as a peace loving nation for over 80 years since the war. Under the new system, we will strategically promote equipment transfers while making even more rigorous and cautious judgments on whether transfers are permissible.

Her government points to the requirement that recipients use equipment consistently with the United Nations Charter, strict screening and restrictions on onward transfers. Sales to countries engaged in active conflict remain generally prohibited, with exceptions possible under extraordinary national security circumstances.

The political divide is therefore about both purpose and risk. Takaichi presents military equipment partnerships as a way to protect peace through collective strength. Opponents focus on the possibility of Japanese weapons being used abroad and on the damage that could do to the country's pacifist reputation and international relationships.

A Broader Security Agenda and an Australian Visit

Japan's export overhaul forms part of Takaichi's wider security reforms. Further announcements are expected on updates to the National Security Strategy, National Defence Strategy and Defence Build Up Program.

Tokyo is expanding its military attache network and official security assistance across Southeast Asia and Pacific island nations. Defense Minister Shinjiro Koizumi has established a Pacific Defense Planning Office, reflecting concern about Chinese activity near vital sea lanes connecting Japan and Australia from north to south.

The Ministry of Economy, Trade and Industry and the Japan Bank for International Cooperation are also taking roles in Japan's expanding security agenda. Their involvement shows how defense production, economic policy and strategic competition are becoming more closely connected.

Takaichi is expected to visit Australia in late April or early May, marking the 50th anniversary of the Basic Treaty of Friendship and Cooperation. The trip is likely to focus on economic security, with the frigate agreement and export reforms giving concrete substance to the countries' special strategic partnership.

The visit could also advance discussion of closer ties toward a formal alliance structure, drawing on the kind of celebrated historical bonds between Japanese and American leaders. That prospect sits alongside the more immediate work of implementing Australia's ship contracts and applying Japan's new export rules.

Japan's April 21 decision brings its industrial and strategic ambitions together. More overseas orders could support factories and reduce domestic procurement costs, while equipment partnerships could strengthen mutual assistance. Public resistance, parliamentary oversight and the government's handling of export exceptions will remain central to how the policy operates.

What to Know

• Japan approved the export overhaul on April 21, 2026, removing five categories that had limited transfers to nonlethal equipment.
• Lethal weapons can now be exported to 17 countries with defense equipment and technology transfer agreements, including Australia, the US, Britain and the Philippines.
• Strict screening, controls on onward transfers and a general ban on sales to countries in conflict remain, with national security exceptions possible.
• The Philippines is exploring used Japanese warships and TC 90 surveillance aircraft.
• Australia's approximately $7 billion agreement covers three upgraded Mogami class frigates and joint production of eight more.
• China condemned the reform, while the US and German ambassadors welcomed it.
• An NHK survey found 53 percent opposed easing lethal arms export restrictions and 32 percent supported the change.
• Japan aims to reduce production costs, strengthen manufacturing capacity and support equipment cooperation with partners.
• Takaichi's Australian visit is expected in late April or early May, alongside further security strategy announcements during 2026.