Japan Weighs Nuclear Submarines as New Defense Minister Koizumi Signals Break from Postwar Nuclear TabooVon Heino Mueller / 12. November 2025 Japan Weighs Nuclear Submarines as New Defense Minister Koizumi Signals Break from Postwar Nuclear Taboo – Naval NewsJapan new Defense Minister Shinjiro Koizumi has publicly called for Tokyo to consider acquiring nuclear powered submarines (SSN) News-Übersicht