敏感时刻，小泉进次郎登上美核潜艇

Core Viewpoint - Japan's defense strategy is evolving, with discussions around acquiring next-generation submarines, including nuclear-powered ones, in response to increasing security threats in the region [1]. Group 1 - Japan's Defense Minister, Koizumi Shinjiro, visited the U.S. Navy's Yokosuka base and toured a Virginia-class nuclear submarine, indicating a focus on enhancing military capabilities [1]. - The ruling Liberal Democratic Party and the Japan Innovation Party are pushing for the acquisition of next-generation submarines, highlighting a shift in Japan's defense posture [1]. - A senior official from the Japanese Prime Minister's office stated that Japan should consider acquiring nuclear weapons due to the deteriorating security environment surrounding the country [1].