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Japan’s cabinet announced on 2026‑04‑15 that the historic prohibition on exporting lethal weapons has been removed, allowing the sale of fighter jets, missiles and warships to a list of allied countries. The move, championed by Prime Minister Sanae Takaichi, coincides with a $7 bn warship contract with Australia and heightened regional security tensions.Key DevelopmentsBan on lethal weapons exports, in place since 1967/1976, is officially lifted.Exports will now include fighter jets, missiles and warships, subject to UN Charter compliance.At least 17 countries – including Australia, New Zealand, the Philippines and Indonesia – are eligible, with potential expansion.Japan will still bar sales to active conflict zones, except under “special circumstances”.The policy shift follows a $7 bn contract for Mitsubishi Heavy Industries to build 11 warships for the Australian navy.Data & Market ImpactPrevious export rules limited Japan to non‑lethal equipment such as surveillance drones and mine‑sweeping gear.The new regime could unlock a defense market worth several billions of dollars annually, given Japan’s advanced aerospace and shipbuilding sectors.With 17 initial buyers, even a modest average order of $500 m per country would generate a $8.5 bn revenue boost for Japanese defense firms.Why This MattersThe decision reshapes Japan’s security architecture, providing a domestic source of high‑tech weaponry for allies and reducing reliance on U.S. arms transfers. It also escalates diplomatic friction with China, which has condemned the move as “reckless militarisation”. For regional economies, the policy opens new export opportunities for Japanese manufacturers while prompting neighboring states to reassess their own defense procurement strategies.Expert InsightAnalysts view the policy change as a pragmatic response to an “increasingly severe security environment” in the Indo‑Pacific. By aligning export rules with the UN Charter, Japan seeks to legitimize its sales while avoiding outright support for ongoing conflicts. The timing—immediately after a $7 bn warship deal—suggests a coordinated effort to cement Japan’s role as a reliable security partner for Australia and other Quad‑plus nations. However, the move risks domestic backlash, especially given Prime Minister Takaichi’s recent offering to the controversial Yasukuni Shrine, which inflames historical sensitivities in China and South Korea.What Happens NextJapan is likely to negotiate bilateral agreements expanding the eligible‑country list, potentially adding Southeast Asian partners.U.S. and Australian defense planners may accelerate joint projects that leverage Japanese platforms.China could increase its own arms sales to counterbalance Japan’s growing influence, heightening regional arms competition.Domestic opposition may pressure the government to tighten “special circumstance” exemptions, shaping the practical scope of the new export regime.