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Japanese officials emphasized the restrictions at Tuesday's announcement. Chief Cabinet Secretary Yoshimasa Hayashi told reporters that the government "will not permit exports to countries engaged in offensive wars" and pointed to end-use monitoring clauses as a firewall against diversion to conflict zones. Critics at home and abroad were unpersuaded. Japan's main opposition parties called the revision a "reckless abandonment of the peace constitution," and groups representing hibakusha — the survivors of the atomic bombings of Hiroshima and Nagasaki — released a joint statement accusing Takaichi's government of "selling the soul of post-war Japan for corporate orders."

The GCAP Fighter And A European Partnership

The most immediate impact of the new rules is on GCAP, the trilateral program in which Japan, the United Kingdom and Italy are jointly developing a stealth fighter intended to replace the F-2 in Japanese service, the Typhoon in British service and the Tornado in Italian service. Before Tuesday's change, Japan would have been legally barred from exporting the finished aircraft to any third country — an arrangement that alarmed London and Rome, both of which view the fighter program as a future export-revenue engine. With the revision in place, Japanese-assembled airframes and subsystems can be sold alongside their British and Italian counterparts.

First flight of a GCAP demonstrator is slated for 2027, with initial operating capability projected for 2035. Saudi Arabia, long interested in the program, is now expected to resume formal purchase discussions, according to two people familiar with the talks who were not authorized to speak publicly.

Washington's Quiet Relief

The Biden and now Trump administrations have pushed Tokyo — publicly and privately — for years to loosen its export rules. Pentagon planners view a Japan that can sell advanced weapons to American allies in the Indo-Pacific as a force multiplier at a moment when U.S. defense manufacturers are struggling to meet demand from Ukraine, Israel and Taiwan simultaneously. "Every Japanese destroyer sold to an ASEAN partner is a destroyer the U.S. Navy doesn't have to build," one senior administration official told USA Herald. "The math is hard to argue with."

The State Department on Tuesday issued a brief statement welcoming the Cabinet decision as "a natural evolution of the U.S.-Japan alliance" and highlighting ongoing cooperation on AEGIS-equipped destroyers, long-range strike missiles and integrated air and missile defense.