Japan considers acquiring nuclear-powered submarines

Japanese Defense Minister Shinjiro Koizumi stated that the government is not ruling out the acquisition of nuclear-powered submarines as part of a review of the nation's key security documents. This consideration is part of an ongoing effort to revise Japan's national security strategy and other defense-related documents by the end of the year to address evolving regional security challenges.

Koizumi noted that while nuclear-powered submarines offer advantages such as extended patrol capabilities and higher speeds compared to conventional diesel-electric vessels, they also present challenges, including higher costs, increased noise levels underwater, and the need for specialized maintenance and operational expertise. Japan currently operates a fleet of 23 diesel-electric attack submarines.

The move follows positive assessments from U.S. Navy officials, who suggested that Japan's existing expertise in nuclear energy technology could facilitate such an acquisition. The push for enhanced defense capabilities has gained momentum within the ruling coalition, including the Liberal Democratic Party and the Japan Innovation Party, in response to security concerns involving China and North Korea.