Mapping the underwater battlefield - China's secret surveillance system

China is systematically building a global undersea surveillance network and a digital map of the ocean floor to prepare for potential submarine warfare. This sweeping campaign blends civilian oceanographic research with strategic military reconnaissance, targeting critical chokepoints and naval flashpoints across the Pacific, Indian, and Arctic oceans.Become a supporter of this podcast: https://www.spreaker.com/podcast/today-explained--6659607/support.Don’t miss our latest episodes! follow us to stay updates with fresh news everyday. Let’s keep the support our podcast to serve update news entire the world!