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.

China has surpassed Russia in the number of nuclear-powered submarines and has moved into second place globally in this ...

Surcouf was a French cruiser submarine armed with heavy guns, aircraft, and torpedoes, designed to hunt enemy fleets across vast distances. After serving under both British and Free French control, ...