Japan Explores Underwater-Launched Hypersonic Missiles

The Defense Post posted that Japan is on the hunt for a new class of hypersonic guided missiles that can be launched from platforms operating beneath the sea. Their linked article carries the headline Japan Explores Underwater-Launched Hypersonic Missiles and states the country is pursuing development of such weapons for submerged launch. The generated source summary repeats the same point about hypersonic guided missiles designed for launch from submerged platforms. No other sources or details appear in the visible posts.