The role of the previously unreported submarine in the Chinese navy, which is the world's largest by hull count, remains ...

North Korea’s state-run media lashed out at the United States on Tuesday over the arrival of a fast-attack submarine in South Korea’s largest port, calling it an “undeniable threat” and an effort to ...

and a nuclear fast-attack submarine (SSN 694), which completed an around-the-world cruise on its first deployment in 1980 and was decommissioned in 1997. The first two Columbia-class submarines ...