Since 1991, Navy subs have launched scores of cruise missiles in combat, but the torpedo attack off Sri Lanka is a return to form after 80 years.

China has overtaken the United States in new nuclear submarine launches over the past five years. The finding comes from an analysis by the International Institute for Strategic Studies. The study is ...

A retired U.S. Navy nuclear submarine commander is offering his perspective on Tuesday's torpedo attack that sank an Iranian warship in the Indian Ocean.

Here’s what you’ll learn when you read this story: For the first time, China has outstripped U.S. nuclear-powered submarine production. U.S. plans to shore up an aging submarine fleet are delayed.

The U.S. Navy's submarine capabilities are still considered superior, but Beijing is working hard to catch up.