Attack submarines are one of the major weapons the U.S. relies on to counter China’s military threat in the Pacific.

From nuclear-armed giants to stealthy hunters, a handful of Russian submarines are built specifically to […] ...

The debate over nuclear-powered submarines is likely to serve as a critical indicator of Japan’s strategic trajectory.

At its current production rates, China is likely to have a far more menacing submarine force than Russia in short order—though its quality is still uncertain.