nuclear-news

Japan Weighs Nuclear-Powered Submarines Amid Regional Tensions

 Rojoef Manuel. The Defense Post, October 10, 2025

Japan is considering developing nuclear-powered submarines after a state-backed panel formally recommended research into “next-generation propulsion” systems for the Japan Maritime Self-Defense Force (JMSDF).

Submitted to the Ministry of Defense last September, the proposal marks the first time an official advisory group has opened the door to studying nuclear propulsion, signaling a potential departure from Japan’s long-standing policy limiting military use of nuclear energy, Army Recognition reported……………………………………………………………………………………

Legal, Political Barriers Remain

Despite the new strategy, Japan’s postwar laws still make such development difficult. The Atomic Energy Basic Act restricts nuclear technology to peaceful uses, while Japan’s “Three Non-Nuclear Principles” forbid manufacturing, acquiring, or receiving nuclear weapons.

Chief Cabinet Secretary Yoshimasa Hayashi also reiterated last year that the East Asian government has “no plans to possess nuclear submarines” under its current law……………………………………………………………. https://thedefensepost.com/2025/10/10/japan-nuclear-submarines/

October 12, 2025 - Posted by Christina Macpherson | Japan, weapons and war