China race to build the world’s deadliest submarines

US vs China undersea: How their most advanced attack submarines compare The United States and China are building submarine forces from very different starting points. The US Navy operates the world’s most experienced nuclear-submarine fleet, supported by decades of deployments, advanced shipbuilding expertise, and highly trained crews. China, by comparison, is still working to close long-standing gaps in stealth, propulsion, sensors, and undersea warfare experience. A direct comparison also requires one important distinction. Ballistic-missile submarines are built primarily for nuclear deterrence, while attack submarines hunt enemy vessels, gather intelligence, support special forces, and strike targets on land. For the clearest…