Japanese Prime Minister Sanae Takaichi is reportedly considering a revision of Japan’s long-standing Three Non-Nuclear Principles, a move that is expected to provoke significant backlash both domestically and internationally. According to Kyodo News, Takaichi is particularly focused on altering the third principle, which currently prohibits the introduction of nuclear weapons into Japanese territory. This potential shift in policy is part of an update to Japan’s National Security Strategy and related documents, last revised in 2022. The Three Non-Nuclear Principles, established in 1967 by then-Prime Minister Eisaku Sato, have been a cornerstone of Japan’s national security policy, emphasizing the non-possession, non-production, and non-introduction of nuclear weapons. While Takaichi has no plans to change Japan’s stance on not possessing or producing nuclear weapons, she argues that the current restrictions could hinder U.S. nuclear-armed vessels from making port calls, thereby weakening U.S. nuclear deterrence. However, this proposed amendment has drawn criticism, with an editorial in the Asahi Shimbun emphasizing that the principles are deeply rooted in Japan’s history as a nation that suffered atomic bombings and enjoy widespread public support. The editorial cautioned that any changes to this policy should not be made hastily or unilaterally by the Prime Minister.